A 1-year-old female is diagnosed with croup. The most likely cause of this disease is:
A) bacteria.
B) acute hyperventilation.
C) allergy.
D) viral infection.

Question

Quizplus · Accepted Answer

Croup is most commonly caused by a viral infection, with parainfluenza virus being the most common culprit. Bacteria and allergy are not typical causes of croup. Acute hyperventilation may occur as a result of croup, but is not the underlying cause of the disease.

A 1-Year-Old Female Is Diagnosed with Croup