Respiratory Flashcards

(278 cards)

1
Q

What is acute bronchitis

A

short term inflammation of the bronchi

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2
Q

common causative agent (3) of acute bronchitis

A

viral infection typically RSV, Rhinovirus and influenza

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3
Q

Pathophysiology of Acute bronchitis

A

Damage causes irritation leading to inflammation of airways and lead to neutrophil infiltrating the lung tissue

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4
Q

Risk factors (3)

A

Tobacco smoke
dust
air pollution

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5
Q

Signs and symptoms

A

Dyspnoea
Cough
wheeze
chest discomfort
Fever
Fatigue
Malais

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6
Q

Investigation for acute bronchitis

A

pulse oximetry
CRP
Chest x-ray

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7
Q

Management for acute bronchitis

A

self-limiting
if bacterial suspected then antibiotics

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8
Q

Complication of acute bronchitis

A

pneumonia

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9
Q

What is bronchiolitis

A

it is an acute viral infection of the lower respiratory tract that occurs primarily in the very young and affects small airways

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10
Q

Common pathogen that causes acute bronchiolitis

A

RSV

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11
Q

Pathophysiology of acute bronchiolitis

A

occurs when virus infect terminal bronchiolar epithelial cells, causing inflammation in small bronchi and bronchioles

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12
Q

Risk factors for acute bronchiolitis

A

attendance at nursery
fall/winter time for kids
overcrowding
prematurity

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13
Q

Signs and symptoms of acute bronchiolitis

A

persistent cough
tachypnoea
chest recession
wheezing
rales

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14
Q

investigation for acute bronchiolitis

A

FBC, CRP, CXR (if needed)

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15
Q

Indication of hospitalisation for acute bronchiolitis

A

Toxic appearance, lethargy, dehydration, apnoea
RR>70
Hypoxia (<92%)

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16
Q

A&E management for acute bronchiolitis

A

inhaled bronchodilator
IV fluid
O2
Intubation
Nasal suctioning

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17
Q

Complication for acute bronchiolitis

A

cyanosis
dehydration
low o2 levels

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18
Q

What is acute epiglottitis

A

Inflammation of the epiglottis
Life threatening and can lead to irreversible loss of the airways due to laryngospasm

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19
Q

Some examples of pathogens that cause acute epiglottitis

A

streptococcus spp, Staph aureus, haemophilus influenza type b(Hib)

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20
Q

Risk factors for acute epiglottitis

A

Male
Weakened immune system
Lack of Hib vaccination

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21
Q

Signs and symptoms of acute epiglottitis

A

Muffles voice
Hoarse cry
Stridor
Drooling
Fever
tripoding

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22
Q

Investigation for acute epiglottitis

A

Lateral neck xr-thumbprint signs

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23
Q

Management for acute epiglottitis

A

Emergency referral
Airway management
Mange symtoms
Gold standard- refer laryngoscopy

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24
Q

Complication of acute epiglottitis

A

abscess formation
meningitis
sepsis
pneumothorax

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25
What is asthma
A reversible chronic respiratory condition associated with airway inflammation and hyper-responsiveness
26
what is the pathophysiology of asthma
exposure to irritants -> inflammatory response -> effect on airways
27
Risk factors for asthma
Genetic environmental stress medication Prenatal smoking occupation Diet and nutrition
28
Signs and symptoms of non-acute asthma
wheeze cough sob chest tighness
29
Signs and symptoms of acute asthma
Fatigue Interrupted sentences us of accessory muscles cyanosis
30
Pulse rate in acute asthma
tachycardia
31
Resp rate in acute athma
tachypnoea
32
Chest observation in acute asthma
wheeze rubbing reduced breath sounds
33
Oxygen sat in acute asthma
hypoxaemia
34
Signs and symptoms in viral induced wheeze
upper resp viral symptoms polyphonic wheeze on auscultation nasal flaring intercostal recession tripoding
35
Diagnosis criteria for non-acute asthma
Presence of more than one symptoms FEV1/FVC ration of less than 70% BRD test - shows improvement of FEV1 of 12% and increase in volume of at least 200ml FeNO result of 40ppb or higher PEF helps diagnose
36
Moderate acute asthma criteria (3pts) in adults
increasing symptoms PEF> 50-75 best or predicted No features of acute severe asthma
37
Severe acute asthma (4 pts) in adults
pef 33-50% best or predicted RR- >25/min HR->110/min inability to complete sentences in one breath
38
Life threating asthma (10 pts) in adults
PEF <33% best or predicted Sp02 < 92% Pa02< 8kPa altered conscious level exhaustion arrythmia hypotension cyanosis silent chest poor respiratory effort
39
Near fatal asthma in adults
raised PaCO2 and or requiring mechanical ventilation with raised inflation pressures
40
severe acute asthma in child
Spo2<92% PEF 33-50% best or predicted can't complete sentences in one breath or too breathless to talk or feed
41
Life threatening asthma in children
Spo2 <92% PEF< 33% best or predicted
42
Investigation order for asthma in adults
FeNO->spirometry ->BDR -> peak flow monitoring ->refer for other tests
43
Investigation order for asthma in children
Spirometry-> BDR-> FeNO-> Peak flow monitoring
44
Management for asthma in adults
Regular preventer (Low dose ICS) Initial add on therapy (add inhaled LABA to low -dose ICS. Additional controller therapies (consider increasing ICS dose or adding LTRA) Refer to specialist therapies
45
Management for paediatric asthma
Regular preventer (Very low dose of ICS or LTRA for <5 yrs) Initial add-on therapy (very low dose ICS + Child>5 -> add inhaled LABA or LTRA and for children <5 add LTRA Additional controller therapies consider increasing ICS to low dose or children >5 add LTRA or LABA Refer to specialist therapies
46
Name 3 pharmacological smoking cessation
Nicotine patch Varenicline Bupropion
47
Name 5 Nonpharmacological smoking cessation
Vaping Community support Counselling Hypnotherapy Acupuncture
48
What is Bronchogenic Carcinoma
primary lung cancer They can be classified into small cell and non-small cell lung cancers Non small more common than small cell
49
Risk factors for branchiogenic carcinoma
Smoking History of cancer exposure to harmful chemicals Lung disease
50
Signs and symptoms
Cough - may be bloody SOB chest pain Hoarseness Fever Noisy breathing Weight loss Slowly resolving chest infection
51
What to look out for in blood investigation for branchiogenic carcinoma
Anamia Thrombocytopenia Raised leukocytes ESR/CRP may be raised
52
2 imaging to do as investigation for branchiogenic carcinoma
CXR CT-CAP
53
2 special test to check for branchiogenic carcinoma
Bronchoscopy Biopsy
54
4 Management for branchiogenic carcinoma
Smoking cessation Radiotherapy Chemotherapy Surgery
55
Complications of branchiogenic carcinoma (3)
Laryngeal nerve palsy Metastatic Superior vena cava obstruction
56
Bronchiectasis
Chronic inflammation of the bronchi and bronchioles leading to permanent dilation of these airways
57
Some causes of bronchiectasis
Half is idiopathic but others: Post- infection (TB, pertussis) Congenital Immune deficiency Connective tissue disease Cystic fibrosis Fibrosis
58
Risk factors for Bronchiectasis
Cystic fibrosis Host immunodeficiency Previous infection congenital disorders of bronchial airways
59
Signs and symptoms of bronchiectasis
Persistent cough copious purulent sputum intermittent haemoptysis fever finger clubbing coarse inspiratory crepitation wheeze large airway Ronchi
60
Investigation for bronchiectasis
CXR CT- show dilation of bronchi with or without airway thickening Sputum culture FBC
61
What is carcinoid tumour
they are neuro-endocrine tumours commonly originate from cells in the stomach, lungs, duodenum, thymus and liver. The bioactive substances result in diarrhoea, bronchoconstriction, skin flushing, right heart problems
62
What is carcinoid syndrome
Carcinoid tumour cells secrete bioactive substances like serotonin, bradykinin. These bioactive substances with physical symptoms of flushing, abdominal pain and etc is called carcinoid syndrome
63
Risk factor for carcinoid tumour
Family history
64
Signs and symptoms of carcinoid tumour
- Palpable mass - Pain - Weight loss. - Skin changes (pellagra) - Diarrhoea
65
What is COPD
Group of progressive obstructive lung diseases including chronic bronchitis and emphysema
66
Pathophysiology of chronic bronchitis
Damage to endothelium impairing the mucociliary response to clear mucus & bacteria results in airway deformation and narrowing of the lumen limiting airflow
67
Pathophysiology of emphysema
Enlargement of airspaces (alveoli), leading to declining in alveolar surface area limiting gas exchange loss of elastic recoil equals airflow limitation; loss of alveolar supporting structure leads to airway narrowing
68
Risk factors of COPD
- Age - Genetics (alpha-1-antitrypsin deficiency) - Tobacco smoke exposure (smoking & second-hand smoking) - Smoking asthmatics - Exposure to fumes - Exposure to workplace irritants
69
6 Signs and symptoms of chronic bronchitis
Blue bloaters Mild dyspnoea Cyanotic Obese Crackles/Wheeze possible Peripheral oedema
70
Hallmark of chronic bronchitis
Chronic productive cough: cough and sputum production for at least 3 months in each of 2 consecutive years.
71
8 Signs and symptoms of chronic bronchitis
PINK PUFFERS Minimal cough Pink skin, pursed lips Cachexic Accessory muscle use Barrell chested Hyperinflation Decreased breath sound
72
Hallmark of emphysema
Dyspnoea
73
Investigation for COPD
Diagnosed by spirometry - FEV1/FVC less than 0.7 FBCs U&Es CRP CXR Sputum Culture
74
Nonpharmacological Management for COPD
Smoking cessation offer pneumococcal and influenza vaccine self-management plan
75
Pharmacological management for COPD with no asthma
Offer SABA or SAMA then... if not asthmatic ->LABA or LAMA then... if worsening symptom effecting QUALY then consider 3-month trial of LABA+LAMA+ICS or if person has severe or moderate exacerbation within a year then consider LABA+LAMA+ICS
76
Pharmacological management for COPD with asthma
Offer SABA or SAMA then... if asthmatic->LABA+ICS then LABA+LAMA+ICS
77
Complications of COPD
- Respiratory infections - Lung cancer - Heart disease - Pulmonary hypertension
78
Definition of cor pulmonale
Right ventricle failure through pulmonary artery hypertension due to a lung disorder
79
Pathophysiology of cor pulmonale
- Most commonly as a result of high blood pressure in the pulmonary arteries (Pulmonary hypertension) - As a result, increased afterload causes structural problems - Most notably hypertrophy of the right ventricle (mainly chronic) - Because the right ventricle is a good volume pump and not a pressure pump this causes issues - Decreased right ventricle output results in decreased left ventricle filling and therefore reduced cardiac output - Acute cor pulmonale can be caused by pulmonary embolism (PE) or acute respiratory distress syndrome (ARDS)
80
Pathophysiology of cor pulmonale
- Most commonly as a result of high blood pressure in the pulmonary arteries (Pulmonary hypertension) - As a result, increased afterload causes structural problems - Most notably hypertrophy of the right ventricle (mainly chronic) - Because the right ventricle is a good volume pump and not a pressure pump this causes issues - Decreased right ventricle output results in decreased left ventricle filling and therefore reduced cardiac output - Acute cor pulmonale can be caused by pulmonary embolism (PE) or acute respiratory distress syndrome (ARDS)
81
Risk factors for cor pulmonale
secondary to lung disease Acute:ARDS, PE Chronic: COPD
82
Signs and symptoms of cor pulmonale
Distended neck vein cyanosis raised JVP SOB Tiredness Chest pain
83
investigation for cor pulmonale (bloods*3, imaging *3, special test *3)
Bloods - FBC, ABG, Coag studies Imaging - CXR, Echocardiogram, CTPA Special Tests - alpha-1-antitrypsin - Broncoscopy - Lung Biopsy
84
Management for cor pulmonale
Medical (Usually initiated by secondary care) - Treat underlying disease - Oxygen - Diuretics such as furosemide or Butenamide - Vasodilate the pulmonary arteries - Phlebotomy for severe hypoxia Surgical - Heart or lung transplant as last resort
85
Complication for cor pulmonale
- Exertional syncope - Hypoxia - Limited exercise tolerance - Peripheral oedema - Tricuspid regurgitation - Death
86
What is cystic fibrosis
Cystic Fibrosis is an autosomal recessive disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene, on chromosome 7
87
Signs and symptoms in neonates for cystic fibrosis
Failure to thrive, meconium ileus, rectal prolapse
88
Resp Signs and symptoms in adults for cystic fibrosis
cough, wheeze, recurrent infections, bronchiectasis, pneumothorax, haemoptysis, respiratory failure, cor pulmonale
89
GI Signs and symptoms in adults for cystic fibrosis
pancreatic insufficiency, distal intestinal obstruction syndrome, gall stones, cirrhosis
90
Other Signs and symptoms in adults for cystic fibrosis
male infertility, osteoporosis, arthritis, vasculitis, nasal polyps, sinusitis, hypertrophic pulmonary osteoarthropathy
91
Investigations for cystic fibrosis
Blood spot on newborn sweat test genetic screening Faecal elastase
92
Management for cystic fibrosis
MDT approach
93
What is croup
aka acute laryngotracheitis common childhood illness caused by inflammation of the upper resp tract as a results of a viral infection
94
2 most responsible organism which can cause croup
parainfluenza RSV
95
pathophysiology of croup
- Viral URTI causes nasopharyngeal inflammation that may spread to the larynx and trachea, causing subglottal inflammation, oedema and compromise of the airway at its narrowest portion - Movement of vocal cords is impaired leading to the characteristic cough
96
Risk factors for croup
mostly effects 6mnth to 6 yrs old genetics
97
4 signs and symptoms of croup
barking cough stridor hoarse cry coryzal
98
What are the investigations for croup
Modified Westley scoring system clinical diagnosis but o2 stats less than 95 indicated resp impairment
99
Management for croup
well hydrated, manage fever dexamethasone Nebulised budesonide Nebulised adrenaline
100
complication of croup
pneumonia pneumothorax pulmonary oedema dehydration
101
What is empyema
collection or presence of frank pus within pleural space
102
Pathophysiology of empyema
often due to infections post pneumonia Begins as free flowing pleural fluid that becomes infected Bacteria colonises the free fluid during the exudate stage when there is an increase of fluid production
103
which infection is most common in empyema
Anaerobic, staph and gram neg infections are most common causes
104
What are the risk factors for empyema
Pneumonia endoscopy lung abscess alcoholism Diabetes COPD
105
Signs and symptoms of empyema
SOB Fever and sweating Dry cough Chest pain upon breathing Weight loss Tachypnoea Rales Ronchi Dullness to percussion
106
Investigations for empyema
**Bloods** - FBCs, U&Es, CRP **Orifice Test** - Throacentesis **X-ray/Imaging** - CXR, CT Chest **Special Tests** - blood cultures
107
Management for empyema
**Medical** - Thoracentesis/ Chest drain - Antibiotics based on causative agent Surgical - removal of affected area
108
2 complications of empyema
Fibrosis Empyema necessitatis
109
What is influenza
It is an acute respiratory illness due to infection with the influenza virus
110
What are the 3 serotypes of influenza
- Influenza A - more frequent and the cause of major influenza outbreaks - Influenza B - tends to circulate with A in yearly outbreaks and causes less severe illness - Influenza C - tends to cause a mild or asymptomatic illness akin to the common cold Influenza A and B viruses cause most clinical disease
111
Risk factors for influenza
- Closed environments - e.g schools, prisons, and residential homes - Very Young - Elderly - Immunocompromised - Pre-existing cardiac or respiratory illness
112
Signs and symptoms of influenzas
- Malaise - Anorexia - Headache - Fever - Myalgia - Non-productive cough - Sore throat
113
Investigation for influenza
- Diagnosis is usually a clinical one. Available tests include: - Direct viral culture of nasopharyngeal swabs/aspirates - PCR
114
Management for influenza
self-limiting
115
complication for influenzas
acute bronchitis influenza related pneumonia exacerbation of other conditions
116
what is mesothelioma
It is a cancerous tumour arising from the mesothelium including that of the pleura
117
What can mesothelioma caused by
Can be caused by asbestos exposure
118
does mesothelioma have long or short latency period
Long latency period
119
What is the life expectancy after diagnosis for mesothelioma
12-month life expectancy after diagnosis
120
What is metastatic tumour
Metastatic lung cancers are cancers that have spread to the lungs from a primary source
121
where can primary metastases spread to the lung s from
brain bone abdomen prostate adrenal kidneys
122
Risk factors for metastatic tumour
Family history exposure to industrial chemical agents primary cancer genetics
123
signs and symptoms of metastatic tumour
Chest pain SOB Haemoptysis Weight loss Recurrent infection Night sweats Cough
124
Investigations for metastatic tumour
FBC, ESR, CRP, LFT, RFT CXR PET scan ECG
125
Management for metastatic tumour
based on individual case
126
Complications for metastatic tumour
Pleural effusion Superior vena cava
127
What is pneumonia
Pneumonia is a common lower respiratory tract infection, characterised by inflammation of the lung tissue. It is almost always an acute infection, and almost always caused by bacteria
128
How to diagnose pneumonia
Cough and at least one other lower respiratory tract symptom AND New focal chest signs on examination AND EITHER sweating, fevers, shivers, aches and pains OR fever >38 AND No other explanation for symptoms.
129
Risk factors for pneumonia
- Smoking - Age: infants and the elderly - Alcohol excess - Preceding viral infections: for example: influenza - Bronchial obstruction: COPD - Bronchiectasis - Immunosuppression: AIDS, chemotherapy - Hospitalisation - Underlying predisposing disease: Diabetes, CVD
130
Most common organism that causes pneumonia
strep pneumonia
131
common causes of pneumonia
staph aureus mycoplasma pneumonia haemophilus influenza
132
less common organisms that cause pneumonia
Klebsiella pneumonia strep pyogenes pseudomonas aeruginosa Coxiella burnetti chlamydia psittaci actinomyces israeli
133
examples of common organism that's causes fungal pneumonia
Mucor spp/Aspergillus spp (mold), Candida spp/cryptococcus spp (Yeast), histoplasma spp/blastomyces spp/coccidioides spp (All dimorphic fungus)
134
Signs and symptoms of pneumonia
Acute illness characterised by cough, purulent sputum, fever. Other common symptoms aches and pains, vomiting, anorexia, pleuritic chest pain, dyspnoea.
135
Investigations for pneumonia
LFT FBC Blood and sputum culture U&E CRP (high) Throat and nasal swab CXR
136
Management for pneumonia
- Hydration - Resting - Use CURB-65 if in primary care to determine if the patient needs hospital care - Oxygen - Antibiotic
137
CURB 65
Confusion Urea RR->30 per minute BP- sytolic of 90 or less or diatolic of 60 or lkess 65 years of age or older 0 - low risk 1-2 intermediate if 2 consider hospitalisation 3-5- high -> urgent admission
138
complication of pneumonia
pleural effusion lung abscess empyema sepsis
139
What is atypical pneumonia
less common causative pathogen, not detectable on gram stain
140
organisms that cause atypical pneumonia
Mycoplasma. pneumoniae, Chlamydophila. pneumoniae and Legionella pneumophila
141
2 types of antibiotics that responds well to atypical pneumonia
macrolide or doxycycline
142
where and who is mycoplasma infection common in
barracks and institutions children and young adults
143
what kind of symptoms do people with mycoplasma infection present with
dry cough sore throat flu like symptoms
144
complications of mycoplasma infection
myocarditis, meningo-encephalitis, maculopapular rash, haemolytic anaemia
145
Treatment for mycoplasma infection
erythromycin/ clarithromycin tetracycline
146
Presentation of legionella pneumonia
Previously healthy patient Contaminated air condition Cough, chills, temp, myalgia
147
complications of legionella pneumonia
confusion hepatitis renal impairment Hyponatraemia lung abscess empyema hypotension
148
investigations for legionella pneumonia
CXR blood culture legionella serolgy
149
Management for legionella pneumonia
Erythromycin 14 -21 days of antibiotics, O2, IV abx/fluids Rifampicin BD by mouth or IV in combination to all severely ill patients in whom diagnosis confirmed or thought to be likely
150
how is chlamydia pneumonia spread
droplet spread like coughing or sneezing
151
presentation of chlamydial pneumonia
Pharyngitis hoarseness otitis media
152
diagnosis of chlamydial pneumonia
PCR
153
Treatment for chlamydial pneumonia
first line- azithromycin Tetracycline macrolides fluoroquinolones
154
common hospital acquired pneumonia organisms
Pseudomonas aeruginosa, Staphylococcal aureus and Enterobacteriaceae (especially Klebsiella, E. coli and Enterobacter spp.)
155
how is hospital acquired pneumonia different to community
acquired 48 hours after admission to hospital
156
Management or staph aureus pneumonia
Flucloxacillin erythromycin
157
Klebsiella pneumonia presentation
High fever rigors pleuritic chest pain purulent and gelatinous blood stained sputumn
158
what is klebsiella often associated with
alcoholism diabetes, copd elderly
159
Management for klebsiella pneumonia
cefuroxime
160
pseudomonas pneumonia
common pathogen in bronchiectasis
161
How is pseudomonas pneumonia diagnosed
sputum culture
162
Treatment for pseudomonas pneumonia
antipseudomonal penicillin (e.g.,ticarcillin, piperacillin), ceftazadime, meropenem, ciprofloxacin
163
common organism in pneumonia in the immunosuppressed
Pneumocystis Jirovecii (carnii) pneumonia (PCP)
164
presentation of PCP
dry cough, exertional dyspnoea &desaturation, fever, bilateral crepitations.
165
Treatment for PCP
co-trimoxazole, pentamidine
166
What is pneumoconiosis
A group of lung diseases, also referred to as occupational lung diseases, including asbestosis, silicosis, coal workers pneumoconiosis and Berylliosis
167
Risk factors for Pneumonoconiosis
- Smoking - Occupation related: working in environments that expose one to the mineral dusts - Occupations include: - Mining, construction or foundry work - Underground coal mining - High temperature ceramics
168
Signs and symptoms of pneumonoconiosis
- Shortness of breath - Cough - Chest tightness - Wheezing - Haemoptysis - History of industrial work - - Widespread wheeze and crackles on auscultation - Dullness on percussion - Clubbing - Cyanosis - Barrel chest
169
what is pertussis
Highly contagious disease also known as “Whooping Cough”
170
when is the vaccine available for pertussis
Vaccine: for 16-31 weeks pregnant and in childhood schedule vaccinations.
171
Pathophysiology of pertussis
- Transmitted by sneeze or cough or through touching of contaminated surface - Caused by Bordetella Pertussis (BP) - BP then releases toxins to help anchor itself to the epithelium - Toxins also paralyse the cilia, causing an excess of mucus build up - Mucus build up triggers violent cough reflex - Causes violent coughing spells called “paroxysms” - Swollen airways cause whooping noise - Significant cause of morbidity and mortality in infants younger than 2 years old
172
Risk factor for pertussis
- Vaccine wears off by teenage years so an outbreak can cause pertussis in teenage or adult years - Infants less than a year old who unvaccinated or haven’t received all recommended vaccines have a high risk of complications and death
173
Signs and symptoms for pertussis
- Runny nose - Nasal congestion - Cough - Low grade fever
174
Investigation for pertussis
FBC CXR Nasopharyngeal swab
175
Management for pertussis
Hospital admission for infants under 6 months of age and for any older child who has had apnoeic or cyanotic spells Macrolides can reduce infective period -clarithromycin/azithromycin Oxygen should be given if there is cyanosis.
176
What is pulmonary HTN
Progressive increase in pulmonary vascular resistance (PVR) and, ultimately, right ventricular failure and death. Increase in mean pulmonary arterial pressure ≥25 mm Hg at rest as assessed by right heart catheterisation.
177
Risk factor for pulmonary HTN
- Family History of PAH - Obesity - Obstructive Sleep Apnea - Female Gender - Pregnancy
178
Symptoms of Pulmonary HTN
chest pain, exertional dyspnoea, fatigue, syncope.
179
Signs of pulmonary HTN
small volume pulse, peripheral cyanosis, a raised jugular venous pulse (JVP), a parasternal - right ventricular – heave, peripheral oedema
180
Investigations for pulmonary HTN
Right heart catheterisation is needed to confirm the diagnosis ECG - right ventricular hypertrophy Echocardiography - demonstrates a dilated right ventricle with impaired function
181
What are pulmonary nodules
Lung nodules are circular/rounded structures that appears on CXR/CT thorax and are traditionally defined as <3cm.
182
Risk factors for pulmonary nodules
- Infection - Previous lung malignancy - Immunocompromised - Smoking
183
Signs and symptoms of pulmonary nodules
- Usually asymptomatic - If symptomatic, symptoms would be consistent with underlying pathology such as weight loss/haemoptysis/SOB if malignant, fever/joint pain/SOB/haematuria if infectious/inflammatory cause.
184
what is pleural plaque
Pleural plaques are benign areas of thickened tissue that form in the pleura, or lung lining
185
what is pleural plaque indicative off
asbestos exposure Pleural plaques develop 10 to 30 years after initial asbestos exposure and usually do not require treatment.
186
What is pleurisy
Inflammation of the pleura which compromises lubrication and results in pain
187
What can cause pleurisy
- Pneumonia - Trauma - Cancers such as mesothelioma or lung Ca - Rheumatoid arthritis - Trauma - Pulmonary embolism - Viral respiratory illnesses - Allergic reactions to drugs - HIV - Respiratory conditions such as Asbestos etc
188
Pathophysiology of pleurisy
- The lungs, rib cage and chest wall are lined with epithelium known as the Visceral pleura and the Parietal Pleura - The Visceral pleura is known as the inner layer which lines the surface of the lungs - The Parietal Pleura is known as the outer layer and lines the chest wall, rib cage and mediastinum - Both layers are supplied by different nerves resulting in different pain sensations - Parietal pleura is supplied by the Phrenic nerve resulting in sharp localised pain - Visceral Pleura is supplied by the Autonomic nerve resulting in dull achy pain - Between both layers there is fluid which acts as a lubricate allowing for inspiration and expiration - When the pleura is inflamed (which can be caused by many illnesses); the pleural lining rubs together causing pain
189
3 risk factors for pleurisy
- Viral illness - Malignancy - Pneumothorax
190
Signs and symptoms of pleurisy
Finding can vary depending on cause chest pain exacerbated by deep inspiration cough SOB
191
Investigations for Pleurisy
These must be done to rule out other causes of Chest pain **Bloods** - Routine including Troponin and ABG (D-Dimer may be done if appropriate) **X-ray/Imaging** - to exclude cardiac cause **Special Tests** - CXR: These will rule out common differentials such as Pneumothorax, pleural effusions, etc - A diagnosis of pleurisy/pleuritis can be done once other differentials have been confidently excluded
192
what is the management for Pleurisy
- This again is dependent on cause and patients PMH - First line (if patient is otherwise stable) : NSAIDS - Second line: Indomethacin - REMEMBER TO TREAT UNDERLYING CAUSE IF APPROPRIATE (e.g. Abx if cause is a bacterial infection)
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Complications of Pleurisy
- Adhesions of the pleura which can leave patients suffering with Chronic chest pain and SOB - Pleural effusion
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What is tension pneumothorax
Abnormal collection of air in the pleural space The pleural cavity pressure is more than the atmospheric pressure
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Pathophysiology of tension pneumothorax
- Tension pneumothorax occurs when a large amount of air is present within the lung causing the lung to deflate - The pressure outside the lung is greater and can cause the trachea to deviate, eventually kinking the inferior vena cava which is what usually leads to death - Often called a collapsed lung
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Risk factors for tension pneumothorax
- Male - Age - Smoking - Mechanical ventilation - Previous pneumothorax
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Signs and symptoms of tension pneumothorax
- Sudden chest pain - Shortness of breath - In severe cases – struggling to breathe - PMH of Pneumothorax, Marfan’s Syndrome - Cyanosis - Tachycardia - Absent breath sounds - Hyperresonance on percussion - Tracheal deviation in tension pneumothorax
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Investigations for tension Pneumothorax
- BOXES (bloods, orifices, x ray/imaging, ECG, special tests) X-ray/Imaging - CXR: if not life threatening - CT Scan: if not life threatening
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Management for tension pneumothorax
Conservative - If less than 2cm and asymptomatic **Medical** - Oxygen if SOB **Surgical** - Wide bore cannula, 2nd intercostal space, midclavicular line to decompress in tension pneumothorax - Chest drain insertion - Pleurodesis: for recurrent pneumothorax
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Complications of tension pneumothorax
- Can occur repeatedly again - May require surgery to prevent this
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What is Traumatic pneumothorax
Abnormal collection of air within the pleural space The pleural cavity pressure is = the atmospheric pressure
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Pathophysiology of traumatic pneumothorax
- Traumatic pneumothorax occurs as a result of trauma - Most commonly as a result of a stab wound with a knife - Can also occur with blunt trauma
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Risk factors for traumatic pneumothorax
- Male - Age - Smoking - Mechanical ventilation - Previous pneumothorax
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Signs and symptoms of traumatic pneumothorax
- Sudden chest pain - Shortness of breath - In severe cases – struggling to breathe - PMH of Pneumothorax, Marfan’s Syndrome - Cyanosis - Tachycardia - Absent breath sounds - Hyperresonance on percussion - Tracheal deviation in tension pneumothorax
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Investigations for traumatic pneumothorax
- CXR: if not life threatening - CT Scan: if not life threatening
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Management for traumatic pneumothorax
Conservative - If less than 2cm and asymptomatic Medical - Oxygen if SOB Surgical - Needle aspiration: Wide bore cannula, 2nd intercostal space, midclavicular line to decompress in tension pneumothorax - Chest drain insertion - Pleurodesis: for recurrent pneumothorax
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Complications for traumatic pneumothorax
- Can occur repeatedly again - May require surgery to prevent this
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What is primary pneumothorax
Abnormal collection of air within the pleural space The pleural cavity pressure is less than atmospheric pressure
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Pathophysiology of primary pneumothorax
Primary pneumothorax occurs without cause usually occurs in the absence of significant lung disease
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Risk factors for primary pneumothorax
- Male - Age - Smoking - Mechanical ventilation - Previous pneumothorax
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Signs and symptoms of primary pneumothorax
- Sudden chest pain - Shortness of breath - In severe cases – struggling to breathe - PMH of Pneumothorax, Marfan’s Syndrome - Cyanosis - Tachycardia - Absent breath sounds - Hyperresonance on percussion - Tracheal deviation in tension pneumothorax
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Investigations for primary pneumothorax
BOXES (bloods, orifices, x ray/imaging, ECG, special tests) **X-ray/Imaging** - CXR: if not life threatening - CT Scan: if not life threatening
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Management for primary pneumothorax
Conservative - If less than 2cm and asymptomatic Medical - Oxygen if SOB Surgical - Needle aspiration: Wide bore cannula, 2nd intercostal space, midclavicular line to decompress in tension pneumothorax - Chest drain insertion - Pleurodesis: for recurrent pneumothorax
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Complications for primary pneumothorax
- Can occur repeatedly again - May require surgery to prevent this
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What is pleural effusion
Collection of abnormally present fluid in the pleural space
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Pathophysiology of pleural effusion
- Occurs as a result of inflammation of the lungs or pleura - This causes exudative effusion - Systemic infections, heart failure, cirrhosis or malignancy can also cause an effusion - This causes transudative effusion
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Common primary aetiology of exudative effusion
Infection cancer autoimmune drugs pulmonary embolism
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Common primary aetiology of transudative effusion
CHF Liver disease ESRD Nephrotic syndrome Pulmonary embolism
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Common secondary aetiology of exudative effusion (right sided *2)
Meigs' syndrome Endometriosis
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Common secondary aetiology of exudative effusion (Left sided *2)
Pancreatic oesophageal rupture
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Risk factors for pleural effusion
- Congestive heart failure - Pneumonia - Malignancy - Recent CABG surgery
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Signs and symptoms of pleural effusion
- Shortness of breath - Cough - Pleuritic chest pain - PMH of cardiothoracic surgery, liver cirrhosis, malignancy, renal failure - Decreased/absent breath sounds - Dullness to percussion - Decreased/absent tactile fremitus
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Investigations for pleural effusion
**Bloods** - WBC, U&E, CRP, Tumour markers **X-ray/Imaging** - CXR, CT Chest **Special Tests** - Blood cultures, Pleural fluid analysis (Light’s criteria)
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Management for pleural effusion
Medical - Therapeutic pleural drainage Surgical - Pleurodesis
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Complications for pleural effusion
Pneumothorax
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What is pulmonary fibrosis
Restrictive disease Pulmonary fibrosis is a condition in which there is diffuse fibrosis of lung parenchyma with a resultant impairment of gas transfer and ventilation-perfusion mismatching.
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Risk factors for pulmonary fibrosis
Family history cigarette smoking advanced age male sex
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Signs and symptoms of pulmonary fibrosis
Dyspnoea Cyanosis Clubbing Slightly reduced chest expansion Bronchial breathing On auscultation there may be late-inspiratory and pan-inspiratory crackles heard over the affected lung
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Investigations for pulmonary fibrosis
A combination of aforementioned clinical features and imaging/biopsy can suggest the diagnosis of pulmonary fibrosis. - CXR – shows typical scarring pattern in the lungs, suggestive of the disease. Typical basilar, peripheral, bilateral, asymmetrical, reticular opacities - CT scan of the lungs and/or a lung biopsy are usually needed to confirm diagnosis. - CRP and ESR mildly elevated
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Management for pulmonary fibrosis
Pulmonary rehabilitation Corticosteroid therapy Other immunosuppressive therapy - drugs such as cyclophosphamide and azathioprine have been used as a steroid sparing agent Lung transplantation Antifibrotic agents - pirfenidone is an immunosuppressant that is thought to have anti-inflammatory and antifibrotic effects. Oxygen - to palliate symptoms of breathlessness
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What is pulmonary embolism
Clot in the pulmonary artery/arteries impairs perfusion of the lungs and can lead to lung infarction and death A pulmonary embolus is a fragment of thrombus (or clot) that breaks off and travels in the blood until it lodges in the pulmonary vasculature in the lungs.
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Pathophysiology of PE
Endothelial damage, venous stasis and hypercoagulability lead to clot formation
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Different causes of PE
Right ventricular thrombus septic emboli Fat, air or amniotic fluid embolism Neoplastic cells Parasites
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Risk factors for PE
Any causes of immobility or hypercoagulability: recent surgery recent stroke or MI disseminated malignancy thrombophilia/antiphospholipid syndrome prolonged bed rest pregnancy, postpartum, COCP/HRT
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Signs and symptoms of PE
Small emboli may be asymptomatic large can be fatal SOB Chest pain Haemoptysis Syncope fever Cyanosis Tachcardia Raised jvp Hypotension
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What investigations are used for PE
WELLS score PERC score D-dimer CXR ECG ABG CT V/Q scan CTPA
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Acronym for PERC score
HAD CLOTS Hormone Age >50 Dvt/pe history Coughing blood Leg swelling O2 less than 95% Tachycardia- 100+ Surgery/ Trauma
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What is D-dimer and what is it used for
D-dimer is a breakdown product of cross-linked fibrin by the fibrinolytic system. D-dimer levels become elevated when there is lysis of cross-linked fibrin within the thrombus. Used to rule out PE
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When are D-dimer worthless
Recent surgery or trauma Patient has other auto-immune or inflammatory process going on in the body Liver / Renal / Heart Failure Pregnancy Sepsis Sickle cell disease Acute MI or Stroke
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What is CXR used in PE investigation for
The greatest utility of the CXR in diagnosis of PE is exclusion of alternate disorders
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Management for PE
Manage airway Anticoagulation DOACS: dabigatran, Rivaroxaban, Apixaban Lowe molecular weight heparin Warfarin orally
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Complications for PE
Cardiac arrest Pleural effusion Pulmonary infarction Death
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What is RSV
Respiratory syncytial virus Contagious viral infection of the respiratory tract, most often the cause of Bronchiolitis
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How is RSV spread and what is the incubation period and where does the virus target
RSV is spread from person to person via respiratory droplet 2-8 days The virus spreads to the respiratory tract targeting the apical ciliated epithelial cells
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What are the risk factors for RSV
Chronic lung disease Immune compromised In utero exposure to Tabacco smoke low socioeconomic disease Premature birth
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Signs and symptoms of RSV infection
Cold-like symptoms: - Low-grade fever - Cough - Wheezing - Rales - Cyanosis - PMH of premature birth, weakened immune system, heart or lung defects/disease
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Investigation for RSV
- FBCs - U&Es Special Tests - Rapid RSV antigen testing
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Management for RSV
**Conservative** - Observations - Hydration **Medical** - Bronchodilators - Alpha agonists
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Complications for RSV
Bronchiolitis Pneumonia
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What is sleep apnoea
The interruption of sleep as a result of a narrowing of the throat This leads to irregular breathing at night and excessive daytime sleepiness
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Risk factors for sleep apnoea
Male sex Obesity Smoking Hypothyroidism
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Signs and symptoms for sleep apnoea
Excessive daytime sleepiness Impaired concentration Snoring Unrefreshing sleep Choking episodes during sleep Witnessed apnoeas - a ten-second pause in breathing Restless sleep
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Investigations for sleep apnoea
Polysomnography - is the gold standard investigation. Epworth Sleepiness scale.
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Management for sleep apnoea
Lifestyle advice/Behavioural interventions – weight loss, smoking cessation, reduction in alcohol consumption. CPAP – it is the gold standard treatment. Pharmacotherapy but its role is limited. Surgery
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What is sarcoidosis
It is a multisystem chronic inflammatory condition characterised by non-caseating epithelioid granulomata. Affects lungs, skin, lymph nodes and eyes most commonly. Accumulation of lymphocytes and macrophages and the formation of non-caseating granulomas
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Signs and symptoms of sarcoidosis (constitutional, lung, skin, eye)
**Constitutional symptoms** – fever, night sweats, weight loss **Lung** – dry cough, dyspnoea **Skin** – erythema nodosum (tender, painful, bilateral) **Eye** – anterior uveitis
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Investigations of sarcoidosis
CXR – bilateral hilar lymphadenopathy CT Blood tests
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What is TB and how is it spread
Tuberculosis (TB) is an infection caused by Mycobacterium Tuberculosis and mainly affects the lungs The bacteria is spread by inhaling respiratory droplets
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Pathophysiology of TB
- The disease is airborne - infection occurs through the inhalation of droplets that may be present in the air if someone with TB has been coughing or sneezing - TB is split into two categories: Latent and Active - Latent TB - you have the TB bacteria present within your body, however it is in an inactive state and therefore asymptomatic and isn’t contagious. It can become active at a later stage, usually when the immune system is weaker e.g. neutropenia through chemotherapy, HIV etc - Active TB - can occur either weeks after contracting the bacteria or several years later, now infective to others - The lungs are the most common site for TB infection - Extrapulmonary TB can manifest in other organs mainly the brain and spinal cord
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Risk factor for TB
Close contact of TB patient Homeless patients, those with alcohol dependency and other drug misusers HIV-positive and other immunocompromised patients Elderly patients
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Lung symptoms for TB
cough, sputum, haemoptysis, breathlessness, lobar collapse, bronchopneumonia, hoarseness
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Pleura symptoms for TB
breathlessness, pain, effusion
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Heart symptoms for TB
pain, arrhythmias, cardiac failure, pericarditis
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Intestine symptoms for TB
malabsorption, diarrhoea, obstruction
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GU tract symptoms for TB
haematuria, renal failure, epididymitis, salpingitis, infertility
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Skin symptoms for TB
erythema nodosum, lupus vulgaris
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Eyes symptoms for TB
iritis, choroiditis, keratoconjunctivitis
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Bones symptoms for TB
arthritis, osteomyelitis
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Lymphatics symptoms for TB
lymphadenopathy, cold abscesses, sinuses
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symptoms for TB
tuberculoma, meningitis
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Investigation if active pulmonary TB is suspected
- If Active pulmonary TB is suspected: -Chest X-Ray -Sputum culture sample: for acid-fast bacilli smear, mycobacterial cultures and nucleic acid amplification testing (NAAT)
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Investigation if active extrapulmonary TB is suspected
- If Active extrapulmonary TB is suspected: -Chest X-ray and sputum sample should be requested -Also, additional investigations depending on the likely site of infection
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Investigation for latent TB
Tuberculin skin test (Mantoux test) - Injecting 0.1mL of liquid containing tuberculin purified protein derivative (PPD) into top layers of forearm skin - Check 48-72 hours after injection - Positive if ≥5 mm skin induration Offer Mantoux test to: - Close contacts of person with active TB - Immunocompromised adults - Healthcare workers - Immigrants from high incidence countries
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Management for active TB
For people with active TB without central nervous system involvement, offer: - Isoniazid (with pyridoxine), rifampicin, pyrazinamide and ethambutol for 2months - Then isoniazid (with pyridoxine) and rifampicin for a further 4 months. - Modify the treatment regimen according to drug susceptibility testing
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Management for latent TB
- Isoniazid (with pyridoxine) and rifampicin x3 months OR - Isoniazid (with pyridoxine) x6 months
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Complications for TB
Pleural effusion Empyema Pneumothorax Laryngitis Enteritis Mycetoma with Aspergillus fumigatus in a healed cavity Cor pulmonale secondary to extensive fibrosis Death
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What is extrinsic allergic alveolitis
Extrinsic allergic alveolitis is a lung disorder resulting from repeated inhalation of organic dust , usually in a specific occupational setting. In the acute form, respiratory symptoms and fever begin several hours after exposure to the dust.
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What is asbestosis
A lung disease that develops due to inhalation of asbestos fibre,which is a fibrous hydrated magnesium silicate. Asbestos fibres are used for building roofs, insulation etc. Long time exposure to asbestos leads to shortness of breath by causing fibrosis of the lung.