11 Flashcards

(31 cards)

1
Q

What are the cardinal signs and symptoms of respiratory disease?

A
-breathlessness 
Chest pain
-coughing
-haemoptysis
-discoloured sputum
-breath sounds 

See signs and symptoms slide 4

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2
Q

What factors would you look at for breathlessness (dyspnoea)?

A
  • it is very subjective
  • common to all resp conditions
  • look at onset, time and duration
  • precipitating factors: position, weather, triggers, pets and other allergies
  • progression
  • severity: how bad is it? What does it stop you from doing such as walking?

See signs and symptoms slide 5-6

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3
Q

What are some potential causes of chest pain?

A
  • mediastinal structures: ACS, pericarditis, aortic dissection, GORD
  • pleura: infection, pneumothorax, PE (which may cause an infarct)
  • chest wall: rib fracture (may allow for infection), Costochronitis, shingles

See signs and symptoms slide 7

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4
Q

How would you determine the cause of chest pain?

A
  • central vs non-central
  • cardiac vs “pleuritic”
  • pleuritic pain: thoracic wall or shoulder tip, sharp and well localized, worse with coughing and breathing in
  • cardiac: dull, worse upon breathing in

See signs and symptoms slide 8

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5
Q

What is cough?-

A
  • important protective mechanism
  • short, explosive expulsion of air
  • triggered by any source of irritation

See signs and symptoms slide 10

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6
Q

What are the characteristics of cough?

A
  • productive cough: what is the colour, amount, is there blood?
  • character: bullvine vs. Seal-like
  • timing: worse at night, or dependant on seasons?
  • commonest cause is URTI

See signs and symptoms slide 12

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7
Q

What is productive cough?

A
  • sputum and haemoptysis
  • chronic bronchitis and COPD; clear sputum
  • infection: yellow/green sputum
  • bronchiectasis: large amount of yellow/green sputum
  • haemoptysis: RED flag

See signs and symptoms slide 13-14

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8
Q

What is wheeze?

A
  • high-pitched, “musical”
  • mostly on expiration
  • narrowing in intrathoracic airways
  • narrowing exacerbated during expiration
  • only audible with stethoscope

See signs and symptoms slide 15

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9
Q

What is stridor?

A
  • high pitch, constant, loud
  • more concerning
  • mostly on inspiration
  • mainly affects trachea and larynx in narrowing
  • narrowing exacerbated during inspiration
  • often audible WITHOUT stethoscope

See signs and symptoms slide 16

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10
Q

What would you inspect during a respi examination?

A
  • raised RR
  • clubbing
  • cyanosis
  • barrel shaped chest
  • pursed lip breathing

See signs and symptoms slide 20-24

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11
Q

How would you palpate on a resp examination?

A
  • tracheal position
  • chest expansion: symmetrical?

See signs and symptoms slide 25

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12
Q

What would you percussion in a respiratory examination?

A
  • resonant: normal
  • hyper-resonant: increased air
  • dull: consolidation
  • stony-dull: pleural effusion

See signs and symptoms slide 26

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13
Q

How would you auscultation on a resp examination?

A
  • normal (vesicular): “rustling leaves”
  • bronchial: very harsh sound
  • reduced or absent

Added sounds

  • wheeze or stridor
  • crackles: fine or course
  • pleural rub: scratching, coarse sound

See signs and symptoms slide 27-28

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14
Q

What is a pulmonary embolism?

A
  • obstruction of a pulmonary arter y or one of its branches, usually by a blood clot
  • blood clot has become dislodged and been carried to the lungs by the blood stream

See lecture 11.2 slide 2

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15
Q

How would a pt. With fat embolism present?

A
  • due to multiple trauma including long bone fractures
  • donut-sign on CXR
  • diffuse air space opacities/infiltrates bilaterally
  • clinical signs may include petechiae rash, tachycardia, fever, hypoxaemia (may be refractory to O2)
  • fat embolism syndrome: triad of lung, brain and skin

See lecture 11.2 slide 3

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16
Q

Describe cerebral air embolism

A
  • usually iatrogenic occurring especially in patients
  • air entry through central venous cannula, pulmonary artery catheters or haemodialysis catheters

See lecture 11.2 slide 4

17
Q

What are risk factors of thromboembolism?

A
  • virchow’s triad
  • endothelial injury
  • stasis or turbulence of blood flow
  • blood hypercoaguability
  • pregnancy
  • prolonged immobilization
  • previous VTE
  • contraceptive pill
  • long haul travel
  • cancer
  • heart failure
  • obesity
  • surgery
  • HRT
  • thrombophilia

See lecture 11.2 slide 7-9

18
Q

In what instance will you get hypercoagulable conditions?

A
  • antithrombin III deficiency
  • protein C or protein S deficiency
  • Factor V Leiden mutation is the most COMMON
  • lupus anticoagulant
  • homocystinuria
  • occult neoplasm
  • CT disorders such as RA

See lecture 11.2 slide 9

19
Q

What is the pathophysiology of the clinical outcomes in PE?

A
  • acute RV overload
  • resp failure
  • pulmonary infarction

See lecture 11.2 slide 10-11

20
Q

What are the symptoms of PE?

A
  • dyspnoea
  • pleuritic chest pain
  • substernal chest pain
  • cough
  • haemoptysis
  • syncope
  • unilateral leg pain
  • fever of less than 39 C

See lecture 11.2 slide 11

21
Q

What are the physical signs of PE?

A
  • tachypnea
  • rales or decreased breath sounds
  • accentuated second heart sound
  • tachycardia
  • fever
  • diaphoresis
  • clinical signs/symptoms suggesting thrombophlebitis
  • lower extremity oedema
  • cardiac murmure
  • cyanosis

See lecture 11.2 slide 12

22
Q

What investigations would you do for a PE?

A
  • blood gases
  • CXR: to rule out other things
  • ECG: to rule out other things
  • d-dimer: look at likelihood and Well’s criteria

See lecture 11.2 slide 13-16

23
Q

What imaging would you use for PE?

A
  • pulmonary angiography
  • ventilation perfusion lung scintigraphy in history!
  • CT pulmonary angiography

See lecture 11.2 slide 17

24
Q

How would you treat PE?

A
  • GIVE OXYGEN
  • immediate heparinisation
  • heparin because easier to control, works better, fewer side effects

See lecture 11.2 slide 17

25
How does heparinisation reduce mortality?
- stop thrombus propagation in the pulmonary arteries and allows for thrombus lysis - stops thrombus propagation at the embolism source and reduces the frequency of further pulmonary embolism - DOES NOT dissolve the clot See lecture 11.2 slide 19
26
What is heparin-induced thrombocytopenia?
- binding of antibody to the platelets activates them, platelet clumps are formed leading to thrombi - LOW platelet count, but paradoxically increased risk thrombosis - treatment: immediate cessation of all formulations of heparin See lecture 11.2 slide 18
27
How would you treat high risk patients for PE/
- haemodynamic support - resp support - exogenous fibrinolytis - percutaeous catheter directed thromectomy - surgical pulmonary embolectomy See lecture 11.2 slide 20
28
What happens after initial heparinisation?
- pt’s started on oral anticoagulant - if they cant be safely on anticoagulants then they would get a direct oral anti coagulant See lecture 11.2 slide 20-21
29
How can we prevent DVT/PE?
Outpatient -recognize and address risk factors Inpatient -DVT prophylaxis after surgery and for patients with malignancy Need to balance risks of DVT vs risks of bleeding re active prophylaxis See lecture 11.2 slide 22
30
Where do pulmonary embolisms usually originate from?
-commonly in the deep veins of the lower limb, pelvis or abdomen
31
What are the consequences of pulmonary embolism?
- hypoxia due to V/Q mismatch - obstruction to the pulmonary circulation which will cause rise in pulmonary artery pressure, which causes RV failure and drop in CO - poorly perfused part of lung may undergo infarction