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bagirrra123 [75]
3 years ago
12

A 4-year-old boy presents for a well-child visit. His mother notes that he breathes fast and his lips turn "dusky" when he runs

or plays hard. The symptoms resolve once he stops the activity. On examination, he has a II/VI left upper sternal border systolic murmur that radiates to the back; a faint click is heard. Which of the following is the most likely cause of this child’s exercise intolerance?
A. Asthma
B. Atrial septal defect
C. Pulmonary valve stenosis
D. Tricuspid atresia
E. Ventricular septal defect
Health
1 answer:
yan [13]3 years ago
5 0

Answer:

C. Pulmonary Valve Stenosis

Explanation:

Shortness of breath due to exertion and Systolic murmur are characteristics of the pulmonary valve stenosis.Pulmonary valve deformity causes hindrance of blood flow.

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