Heat and moisture exchangers (HMEs):
I. provide 70% to 90% relative humidity
II. provide temperatures between 30 and 31 degrees Celsius
III. are intended for short-term use
IV. may be used without an artificial airway

Question

Quizplus · Accepted Answer

Heat and moisture exchangers (HMEs) are designed to provide 70% to 90% relative humidity and temperatures between 30 and 31 degrees Celsius, making statements I and II correct. They are generally intended for short-term use in patients with artificial airways, making statement III correct. However, they require an artificial airway to function properly, making statement IV incorrect.

Heat and Moisture Exchangers (HMEs)