Speed settings of 32 and 160 mm/min on a water-sealed spirometer can be used to measure which of the following?
1. Minute ventilation
2. Peak expiratory flows
3. Maximum voluntary ventilation
4. Forced vital capacity maneuvers
a. 1 and 2 c. 2 and 4
b. 1 and 3 d. 3 and 4
ANS: B
The slower speeds (32 and 160 mm/min) are used for measuring tidal volume, minute ventilation, and maximum voluntary ventilation.
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