Which symptom is a classic sign of croup?

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Multiple Choice

Which symptom is a classic sign of croup?

Explanation:
Croup causes swelling of the larynx and trachea, narrowing the upper airway and producing a distinctive bark-like cough. That harsh, seal-like cough is the hallmark sign because it reflects subglottic edema and laryngeal involvement typical of this condition. In kids, the cough is often worse at night and is accompanied by hoarseness and sometimes mild inspiratory stridor, but mucus production isn’t a feature. A productive cough suggests lower airway involvement such as bronchitis or pneumonia, chest pain is not typical in pediatric croup, and nausea isn’t part of this upper airway illness.

Croup causes swelling of the larynx and trachea, narrowing the upper airway and producing a distinctive bark-like cough. That harsh, seal-like cough is the hallmark sign because it reflects subglottic edema and laryngeal involvement typical of this condition. In kids, the cough is often worse at night and is accompanied by hoarseness and sometimes mild inspiratory stridor, but mucus production isn’t a feature. A productive cough suggests lower airway involvement such as bronchitis or pneumonia, chest pain is not typical in pediatric croup, and nausea isn’t part of this upper airway illness.

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