Which of the Following Statements Are True of Croup

question 21

Multiple Choice

Which of the following statements are true of croup?
I.It is the most common cause of upper airway obstruction in children.
II.It is a viral infection.
III.It develops over several days.
IV.The obstruction is occasionally severe enough to require an artificial airway.

• A) I, II, III, IV
• B) III, IV
• C) I, II, III
• D) I, II, IV

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Definitions:

Suprachiasmatic Nucleus

A small region in the brain’s hypothalamus responsible for controlling circadian rhythms, which are the body's internal biological clock.

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness cycles.

Hormone

A chemical substance produced in the body that serves as a messenger, regulating and coordinating various physiological activities.