The nurse is going to measure, at the bedside, the amount of air that moves in and out of a patient's lungs with each normal breath. The nurse is going to measure which of the following?
1. vital capacity
2. tidal volume
3. minute ventilation
4. forced expiratory volume
2
Rationale: Tidal volume is the amount of air that moves in and out of the lungs with each normal breath. Vital capacity is the maximum amount of air expired after a maximal inspiration. Minute ventilation is the total volume of expired air in 1 minute and is not a direct measurement but a simple calculation. Forced expiratory volume testing generally is not conducted routinely at the bedside as a bedside trending parameter.
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