Croup

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Summary of Croup

Croup respiratory infection that is usually caused by a virus. It leads to swelling inside the wind pipe, which interferes with normal breathing and produces the classic symptoms of "barking" cough, stridor, and a hoarse voice. Fever and runny nose may also be present. Often it starts or is worse at night.

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Croup

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Croup

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USMLE® Step 1 style questions USMLE

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USMLE® Step 2 style questions USMLE

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Preview

A 2-year-old child comes to the emergency department because of fever, harsh cough, and difficulty breathing for a day. His mother states that her 5-year-old brother who attends a local school was recently ill with similar symptoms. Medical history includes up-to-date immunizations. Her temperature is 37.4ºC (98.0ºF), pulse is 160/min, respirations are 64/min, and blood pressure is 90/62 mm Hg. Pulmonary auscultation shows loud stridor. A frontal x-ray of the upper chest airways is obtained. Which of the following is the most likely diagnosis?

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