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Medicine

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Respiratory

Question
9 out of 9
 

In which condition, hypoxia is not correctable with oxygen therapy. (AIIMS May 09)



A Interstitial lung disease

B Pulmonary vascular disease

C Alveolar collapse

D All of the above

Ans. C

Alveolar collapse

Increased PAO2 – PaO2

(Alveolar arterial difference in oxygen)

Correctible with oxygen (V/Q mismatch)

Not correctible with oxygen (Shunt)

V/Q mismatch

Shunt

1). Obstructive Airway disease (Asthma)

2). Interstitial lung disease

3). Alveolar disease

4). Pulmonary vascular disease

1). Alveolar collapse

2). Intra alveolar filling

a. Pneumonia,

b. Pulm edema

3). Intracardiac shunt

4). Vascular shunt within lung