Pediatrics A child with complaints of cough. Characteristic inspiratory whoop present. Not immunised. 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 present. Not immunised. Sample for investigation is ? ✓ Correct Answer: A. Nasopharyngeal swab