Acute respiratory Flashcards

1
Q

Using which system is PE risk calculated?

A

Well’s criteria

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2
Q

How is Well’s score used in acute SOB patients?

A

If >4 a PE is likely: admit and do immediate CTPA

If <4 it is less likely: perform a D-DIMER and only do CTPA if this is pos

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3
Q

What might an ECG show in PE?

A

Right axis deviation, RBBB

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4
Q

Recall 2 things that may be seen on CXR in PE

A

Pleural effusion

Elevation of hemidiaphragm

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5
Q

Differentiate the management of PE depending on whether the patient is haemodynamically stable or not

A

Stable: LMWH or fondaparinux until INR>2, warfarin
Unstable: alteplase to thrombolyse

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6
Q

How does the chest sound on auscultation in the case of pneumothorax?

A

Hyperresonant

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7
Q

What is the key size of pneumothorax above which there must be medical intervention?

A

2cm

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8
Q

When is it appropriate to aspirate a pneumothorax rather than drain it?

A

Primary pneumothorax >2cm when pt is <50 yrs

1-2cm pneumothorax when it is a secondary pneumothorax/ pt is >50

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9
Q

What should be done to manage larger pneumothoraces?

A

intercostal drain

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10
Q

What would make a pneumothorax an emergency?

A

If it were a tension pneuothorax

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11
Q

What is a tension pneumothorax?

A

Build up of air in the pleural space due to a one-way valve

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12
Q

Recall how a tension pneumothorax appears on examination

A

Reduced breath sounds
Tachycardia and tachypnoea
Deviation of trachea and displacement of apex beat (as mediastinum pushed out of place)

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13
Q

What is the immediate treatment required in tension pneumothorax?

A

Immediate needle decompression using wide boar needle in 2nd ICS at MCL

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14
Q

Define pneumonia

A

Inflammation of the alveoli caused by an infective pathogen

Results in air sacs filling with fluid/ pus

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15
Q

What is the most common community acquired cause of pneumonia?

A

Streptococcus pneumoniae

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16
Q

Which patients are most likely to acquire H. influenzae pneumonia?

A

COPD

17
Q

Which patients are most likely to acquire klebsiella pneumonia?

A

HIV

18
Q

What is the most common cause of hospital-acquired pneumonia?

A

Staphylococcus aureus

19
Q

Recall the classic symptoms of pneumonia

A

Fever
Rigors
Productive cough
Pleuritic chest pain

20
Q

Recall the 4 key examination findings upon chest examination in pneumonia

A

Reduced chest expansion
Dull percussion
Increased vocal resonance
Bronchial breathing

21
Q

What are the 2 key things to look for on CXR in pneumonia?

A

Lobar or multilobar?

Is there conolidation?

22
Q

Recall the medical management of pneumonia depending on severity

A

Low: oral amoxicillin
Moderate: oral amoxicillin + macrolide
Severe: IV co-amoxiclav + macrolide

23
Q

What score is used to assess pneumonia severity?

A

CURB 65

24
Q

Recall the CURB 65 criteria

A
Confusion
Urea >7
Resp rate >30
BP <90/60
>65 (age)
25
Q

What is the name of the disease caused by legionella that is non-pneumonatic?

A

Pontiac fever

26
Q

What is the first line of medical management of legionnaire’s disease?

A

IV macrolide (clarithromycin)

27
Q

What investigation confirms a diagnosis of legionella?

A

Urinary antigen detection

28
Q

Which electrolyte imbalance is caused by legionella?

A

Hyponatraemia

29
Q

What would be seen on CXR in legionnaire’s diease?

A

Bibasal consolidation

30
Q

Recall the medical management of staph aureus pneumonia when it is S. aureus and when it is MRSA

A

S. aureus: flucloxacillin

MRSA: vancomycin

31
Q

Which pathogen causes pneumocystis pneumonia?

A

Pneumocystic jirovercii (fungus)

32
Q

In which demographic of patients is pneumocystic pneumonia most commonly seen?

A

HIV+

It is an AIDS-defining illness

33
Q

What is the treatment for pneumocystis pneumonia?

A

High dose IV co-trimoxazole

34
Q

In which demographic of patients is pseudomonas pneumonia most commonly seen?

A

Those with bronchiectasis/ cystic fibrosis

35
Q

Recall one unusual symptom of pneumocystis pneumonia?

A

Purple patches on nose

36
Q

Recall the approach to presenting CXRs

A
RIPE:
Rotation
Inspiratory effort
Penetration
Exposure
ABCDE:
Airway
Breathing
Circulation
Diaphragms
Everything else (eg foreign bodies, bones)
37
Q

Recall the ABCDE of what you would see on a CXR in heart failure

A
Alveolar shadowing
Kerley B lines
Cardiomegaly
Upper lobe Diversion
Pleural Effusion