Which of the following inspired conditions should be maintained when delivering medical gases to the hypopharynx, as when administering oxygen (O2) by nasal catheter?
a. 50% relative humidity (RH) at 20° to 22° C
b. 100% RH at 20° to 22° C
c. 95% RH at 29° to 32° C
d. 100% RH at 32° to 35° C
ANS: C
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Histamine is a inflammatory mediator that can cause airway inflammation
Indicate whether the statement is true or false
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