Administration of dry gases at flows exceeding 4 L/min can cause which of the following? 1. Structural damage 2. Heat loss 3. Water loss
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1, 2, and 3
ANS: D
Administration of dry medical gases at flows greater than 4 L/min to the upper airway causes immediate heat and water loss and, if prolonged, causes structural damage to the epithelium.
Health Professions
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