Asthma Flashcards

(61 cards)

1
Q

Syndrome characterized by airflow obstruction that varies markedly, both spontaneously and with treatment

A

Asthma

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2
Q

Heterogenous disease characterized by chronic airflow inflammation that varies markedly both spontaneously and w/ treatment

A

Asthma

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3
Q

Asthma

A

AIRWAY HYPERRESPONSIVENESS

AIRFLOW INFLAMMATION

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4
Q

Measures how much air an individual can EXHALE during a forced breath during the first second

A

FEV 1

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5
Q

Total amount of air exhaled during the FEV test

A

FVC

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6
Q

Should be 75-80 %
REDUCED in obstructive diseases
May be NORMAL or INCREASED in restrictive diseases

A

FEV 1/FVC ratio

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7
Q

Major risk factor for asthma

A

atopy

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8
Q

Most consistent findings in asthma have been associated with polymorphisms of genes on

A

chromosome 5q

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9
Q

Hygiene hypothesis

A

Proposes that LACK OF INFECTIONS in early childhood PRESERVES THE TH2 CELL BIAS at birth whereas EXPOSURE TO INFECTIONS and endotoxin results in a shift toward a predominant PROTECTIVE TH1 IMMUNE RESPONSE

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10
Q

Mast cells

A

Important in initiating the ACUTE BRONCHOCONSTRICTION responses to allergens and several other indirectly acting stimuli (exercise, hyperventilation and fog)

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11
Q

Dendritic cells

A

Specialized macrophage-like cells in the airway epithelium which are major antigen presenting cells –

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12
Q

Characteristic feature of asthma airways

A

Eosinophil infiltration

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13
Q

Eosinophils

A

Linked to the development of AHR through the release of basic proteins and oxygen derived free radicals

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14
Q

Neutrophils

A

Resistant to the anti-inflammatory effects of corticosteroids

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15
Q

T-lymphocytes

A

Play a very important role in coordinating the inflammatory response in asthma through the release of specific cytokines

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16
Q

IL-4, IL-5 and IL-13

A

Mediate allergic inflammation

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17
Q

Chemokines

A

Involved in ATTRACTING INFLAMMATORY CELLS from the bronchial circulation into the airways

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18
Q

TNF-α and IL-1β

A

Proinflammatory cytokines that amplify the inflammatory response and has a role in SEVERE DISEASE

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19
Q

IL-13

A

Induces MUCUS HYPERSECRETION

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20
Q

Airway remodeling

A

Increased airway smooth muscle, fibrosis, angiogenesis and mucus hyperplasia

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21
Q

Major pathology of asthma

A

airway hyperresponsiveness

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22
Q

Symptoms of Asthma

A

wheezing
shortness of breath
chest tightness
cough

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23
Q

2 key defining features of asthma

A

history of respiratory symptoms such as wheeze, SOB, chest tightness and cough that vary over time and intensity

AND

variable expiratory airflow limitation

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24
Q

Most frequent PE finding in px with asthma

A

wheezing on auscultation esp on forced expiration

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25
Provide quick relief of asthma symptoms and bronchoconstriction
SABA - Salbutamol (Albuterol), Terbutaline
26
Adverse effects of SABA
``` tremor tachycardia (palpitations) hyperglycemia hypokalemia hypomagnesemia restlessness hypoxemia ```
27
Preferred reliever for patients prescribed as-needed controller therapy for mild asthma
Low dose ICS (Budesonide)-Formoterol
28
Adverse effects of LABA – Formoterol, Salmeterol
tachycardia headache cramps
29
Adverse effects of SAMA (Ipratropium bromide, Oxitropium bromide)
dry mouth (MC) bitter taste glaucoma urinary incontinence
30
The most effective anti-inflammatory medications for asthma
Inhaled corticosteroids (ICS) – Beclomethasone, Budesonide, Ciclesonide, Fluticasone propionate, Fluticasone furoate, Mometasone, Triamcinolone
31
Local adverse effects of ICS
oropharyngeal candidiasis | hoarseness/dysphonia
32
Systemic side effects of ICS
osteoporosis glaucoma cataract
33
Adverse effects of LAMA (Tiotropium bromide)
dry mouth
34
Anti IgE that neutralizes circulating IgE without binding to cell-bound IgE
Omalizumab
35
An add-on option for px with SEVERE ALLERGIC ASTHMA uncontrolled on high dose ICS-LABA
Anti-IgE - Omalizumab
36
An add-on option for px with SEVERE EOSINOPHILIC ASTHMA uncontrolled on high dose ICS-LABA
Anti-IL5- Mepolizumab or Reslizumab and anti-IL5R - BenRalizumab
37
An add-on option for px with SEVERE EOSINOPHILIC OR TYPE 2 ASTHMA uncontrolled on high dose ICS-LABA
Anti-IL4R – Dupilumab
38
Short term adverse effects of oral corticosteroids – prednisone, prednisolone, methylprednisolone, hydrocortisone
``` sleep disturbance reflux appetite increase hyperglycemia mood changes ```
39
Long term adverse effects of oral corticosteroids
``` cataract glaucoma hypertension diabetes adrenal suppression osteoporosis ```
40
Preferred reliever for step 1 and 2
as needed LOW DOSE ICS-FORMOTEROL other reliever SABA
41
Preferred reliever for step 1 and 2
as needed LOW DOSE ICS-FORMOTEROL other reliever SABA
42
Preferred controller for step 1
as needed LOW DOSE ICS FORMOTEROL other controller options LOW DOSE ICS taken whenever SABA is taken
43
Preferred controller for step 2
daily LOW DOSE ICS or as needed LOW DOSE ICS-FORMOTEROL other controller options daily LTRA OR LOW DOSE ICS taken whenever SABA is taken
44
Preferred reliever for step 3,4 and 5
as needed low dose ICS - formoterol for patients prescribed maintenance
45
Preferred controller for step 3
LOW DOSE ICS-LABA other controller options MEDIUM DOSE ICS or LOW DOSE ICS +/- LTRA
46
Preferred controller for step 4
MEDIUM DOSE IC-LABA other controller options HIGH DOSE ICS, add on TIOTROPIUM or add on LTRA
47
Preferred controller for step 5
HIGH DOSE ICS LABA refer for phenotypic assessment +/- add on therapy i.e. tiotropium, anti IgE, anti IL5/5R, anti IL4R other controller options add LOW DOSE OCS
48
SABA stimulate adenycyl cyclase --> inc cAMP --> bronchodilation
Procaterol Salbutamol Terbutaline Albuterol
49
Adverse effects of SABA
tremor palpitation mild hypokalemia
50
SAMA (-) cholinergic reflex components
Ipratropium
51
Adverse effects of SAMA
dry mouth urinary retention glaucoma
52
Methylxanthines (-) PDE activity --> inc cAMP --> bronchodilation
Theophylline Aminophylline Doxofylline
53
ICS
Beclomethasone Budesonide Fluticasone
54
Adverse effects of ICS
hoarseness dysphonia oral candidiasis pneumonia
55
Systemic Steroids
Prednisone Methylprednisone Hydrocortisone
56
Adverse effects of systemic steroids
``` truncal obesity easy bruisability osteoporosis DM HPN ulcers proximal myopathy cataracts depression ```
57
LABA should NOT be given in the absence of ICS
``` Formoterol Salmeterol Bambuterol Vilanterol Indacaterol Olodaterol ```
58
LAMA blocks acetylcholine's effects on muscarinic receptors
Tiotropium
59
Leukotriene Modifying Drugs
BLOCK LEUKOTRIENE RECEPTORS Montelukast Zafirlukast INHIBIT LIPOXYGENASE Zileuton
60
Cromones (-) mast cells and sensory nerve activation
Cromolyn sodium | Nedocromil sodium
61
Anti-IgE
Omalizumab