Pediatrics A child with complaints of cough. Characteristic ‘inspiratory whoop. Sample for investigation is – A Nasopharyngeal swab B Tracheal aspiration C Cough plate culture D Sputum culture 💡 Explanation A child with complaints of cough. Characteristic 'inspiratory whoop. Sample for investigation is – ✓ Correct Answer: A. Nasopharyngeal swab