ACTUAL QUESTIONS AND CORRECT
ANSWERS
Which one of the lung capacities is the smallest?
A. IC
B. TLC
C. VC
D. FRC - CORRECT ANSWER D. FRC
Which of the following conditions are indications for HBOT?
I. Clostridial gangrene
II. Carbon monoxide poisoning
III. Radiation necrosis
IV. Decompression sickness
A. I, II, III, and IV
B. I and IV only
C. I, III, and IV only
D. II and III only - CORRECT ANSWER D. II and III only
What is the normal diffusion capacity of CO?
A. 20 mL/min/mm Hg
B. 60 mL/min/mmHg
C. 25 mL/min/mm Hg
D. 40 mL/min/mmHg - CORRECT ANSWER C. 25 mL/min/mm Hg
,In GOLD (Global Initiative for COPD), which pulmonary measurements are used to assess
the severity of COPD?
A. FEV1 and FEF200-1200
B. FEV1 and TLC
C. FEV1 and FEV1/FVC
D. FVC and PEFR - CORRECT ANSWER C. FEV1 and FEV1/FVC
In COPD, what technique is often used by patients to offset dynamic compression?
A. rapid breathing
B. rapid shallow breathing
C. cough
D. pursed-lip breathing - CORRECT ANSWER D. pursed-lip breathing
Which gas is used to test the physiologic effectiveness of the alveolary-capillary membrane?
A. N2O
B. CO2
C. O2
D. CO - CORRECT ANSWER D. CO
In the Global Initiative for COPD, which category of COPD is considered severe COPD?
A. Stage II
B. Stage I
C. Stage III
D. Stage IV - CORRECT ANSWER C. Stage III
, What does the PH2O equal in alveolar gas if the FIO2 is 0.21?
A. 47 mm Hg
B. 573 mm Hg
C. 100 mm Hg
D. 40 mm Hg - CORRECT ANSWER A. 47 mm Hg
When breathing FIO2 0.35 at a barometric pressure of 700 mmHg, what would the PO2 in
the alveoli equal?
A. 147mmHg
B. 266 mmHg
C. 245 mmHg
D. 455 mmHg - CORRECT ANSWER C. 245 mmHg
What shape would be associated with obstructive lung disease on the FEF25-75% of a flow
volume loop?
A. sawtooth
B. long, extended outward curve
C. cup-like or scooped out effect
D. straight line - CORRECT ANSWER C. cup-like or scooped out effect
Which of the following would you expect to be reduced during an acute asthma episode?
A. PEFR
B. heart rate
C. FRC