Which of the following criteria should be met before considering use of a heat-moisture exchanger (HME) for a patient being placed on ventilatory support?
1) There should be no problem with retained secretions.
2) The patient should not have fever (normothermic).
3) The patient should be adequately hydrated.
4) The support should be short term (24 to 48 hr).
A)1, 2, and 3 only
B)2 and 4 only
C)1, 2, 3, and 4
D)3 and 4 only

Question

Quizplus · Accepted Answer

Heat-moisture exchangers (HMEs) are used for patients on ventilatory support to condition inspired air. They are most effective when the patient does not have issues with retained secretions, is normothermic (without fever), and is adequately hydrated. Although not strictly limited to short-term use, they are often considered for shorter durations of support. Therefore, all listed criteria are relevant for considering the use of an HME.

Which of the Following Criteria Should Be Met Before Considering