Heat and Moisture Exchangers (HMEs) Are Mainly Used to Do

question 51

Multiple Choice

Heat and moisture exchangers (HMEs) are mainly used to do what?

• A) Warm and humid gases delivered to the trachea via ventilator circuits.
• B) Humidify therapeutic gases delivered at high flows to the lower airway.
• C) Provide extra humidity for a patient with thick or retained secretions.
• D) Warm and humid dry therapeutic gases delivered to the upper airway.

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Definitions:

Digestive Tract

The series of hollow organs joined in a long, twisting tube from the mouth to the anus, through which food is digested and nutrients absorbed.

Chief Cells

Cells located in the stomach that secrete pepsinogen, an enzyme precursor that plays a key role in digestion.

Pepsinogen

The precursor of pepsin; secreted by chief cells in the gastric glands of the stomach.

Hydrochloric Acid

A strong corrosive acid that is used in the digestive system to help digest food and kill bacteria.