A 7-year-old boy is brought to the office due to sudden onset of facial swelling 2 hours ago. He has had no itching or pain other than a sore throat over the last 2 days, for which he has taken acetaminophen. The patient has had similar episodes of facial swelling that resolved spontaneously after a few days. Temperature is 37 C (98.6 F), blood pressure is 100/78 mm Hg, pulse is 95/min, and respirations are 24/min. Examination shows nonpitting edema of the cheeks, lips, and tongue; there is no tenderness or erythema. Which of the following studies is most likely to be abnormal?

Question

A 7-year-old boy is brought to the office due to sudden onset of facial swelling 2 hours ago.  He has had no itching or pain other than a sore throat over the last 2 days, for which he has taken acetaminophen.  The patient has had similar episodes of facial swelling that resolved spontaneously after a few days.  Temperature is 37 C (98.6 F), blood pressure is 100/78 mm Hg, pulse is 95/min, and respirations are 24/min.  Examination shows nonpitting edema of the cheeks, lips, and tongue; there is no tenderness or erythema.  Which of the following studies is most likely to be abnormal?

Quizplus · Accepted Answer

The Answer is B

A 7-Year-Old Boy Is Brought to the Office Due to Sudden