Jaqueline uses an over-the-counter decongestant.What is the mechanism of action of decongestants?
A) They constrict blood vessels in the respiratory tract.
B) They stabilize the mast cell membrane.
C) They increase secretions,reduce viscosity,and help to expel sputum.
D) They decrease the hypersecretion of and liquefy pulmonary secretions.
Correct Answer:
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