For which of the following patients requiring ventilatory support would you recommend against using a heat-moisture exchanger (HME) for airway humidification?
I.patient whose expired V_Tis less than 70% of the delivered V_T
II.patient with a spontaneous minute ventilation of 14 L/min
III.patient with body temperature less than 32° C

Question

Quizplus · Accepted Answer

Heat-moisture exchangers (HMEs) are contraindicated or not recommended for patients with certain conditions. These include patients whose expired tidal volume is less than 70% of the delivered tidal volume, indicating a significant leak in the system which would render HMEs ineffective. Patients with a high spontaneous minute ventilation (e.g., 14 L/min) may exceed the capacity of HMEs to adequately humidify and warm the inspired air. Lastly, patients with a body temperature less than 32°C may require active warming and humidification beyond what HMEs can provide, as maintaining body temperature and ensuring adequate humidification are critical in such hypothermic conditions.

For Which of the Following Patients Requiring Ventilatory Support Would