Question

an acute respiratory syndrome that occurs in children and infants and is characterized by laryngeal obstruction and barking cough is called:
a rhonchi.
b pertussis.
c crackle.
d croup.
e atelectasis.

Explanation:

• Option A: Rhonchi are continuous, low - pitched breath sounds, not related to this syndrome.
• Option B: Pertussis (whooping cough) has a characteristic "whoop" sound and is different from the described barking cough with laryngeal obstruction in children.
• Option C: Crackles are discontinuous, non - musical breath sounds, not related to this condition.
• Option D: Croup is an acute respiratory syndrome in children/infants with laryngeal obstruction and a barking cough, which matches the description.
• Option E: Atelectasis is the collapse of lung tissue, not characterized by a barking cough and laryngeal obstruction.

Answer:

D. croup