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Free notes, MCQs, tables & flowcharts for UPSC-CMS Physiology
A 28-year-old woman having limited cutaneous scleroderma for the last 10 years complains of shortness of breath for the last one month. Pulmonary function tests (PFT) are as follows. What is the most likely diagnosis in this case?
ACongestive heart failure
BInterstitial lung disease
CPulmonary artery hypertension
DBronchiectasis
Which of the following is seen in high altitude climbers?
AHyperventilation
BPulmonary edema
CDecreased PaCO2
DAll of the options
A 56-year-old male with COPD presents with worsening shortness of breath. ABG analysis shows PaO2 of 55 mmHg. Which physiological mechanism primarily contributes to his hypoxemia?
ARight-to-left shunt
BHypoventilation
CVentilation-perfusion mismatch
DReduced inspired oxygen tension
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