Which symptom characterizes the paroxysmal stage of pertussis?

Which symptom characterizes the paroxysmal stage of pertussis?

• A. Catarrhal stage
• B. Convalescent stage
• C. Paroxysmal stage
• D. Incubation period

Answer: (C)

In the paroxysmal stage of pertussis, the hallmark is sudden, rapid coughing spells that occur in clusters. Each paroxysm often ends with a high-pitched inspiratory sound—the whoop—as the person tries to take a breath after a coughing fit. Post-tussive vomiting or gagging is common, and after episodes the child may appear exhausted. In infants, the whoop may be absent and apnea can occur instead. This set of symptoms distinguishes the paroxysmal stage from the milder catarrhal stage and from recovery in the convalescent stage.

In the paroxysmal stage of pertussis, the hallmark is sudden, rapid coughing spells that occur in clusters. Each paroxysm often ends with a high-pitched inspiratory sound—the whoop—as the person tries to take a breath after a coughing fit. Post-tussive vomiting or gagging is common, and after episodes the child may appear exhausted. In infants, the whoop may be absent and apnea can occur instead. This set of symptoms distinguishes the paroxysmal stage from the milder catarrhal stage and from recovery in the convalescent stage.