Key considerations in selecting or recommending humidity or bland aerosol therapy for a patient include which of the following?
1. Required gas flow
2. Presence of an artificial tracheal airway
3. Character of pulmonary secretions
4. Need for or duration of mechanical ventilation
5. Presence of heat and moisture exchanger (HME) contraindications
a. 2, 3, and 4 only
b. 1, 2, and 3 only
c. 3, 4, and 5 only
d. 1, 2, 3, 4, and 5
ANS: D
Key considerations include (1) gas flow, (2) presence or absence of an artificial tracheal airway, (3) character of the pulmonary secretions, (4) need for and expected duration of mechanical ven-tilation, and (5) contraindications to using an HME.
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