Pediatrics A child presented with complaints of cough with a characteristic inspiratory whoop. He was not immunised. Sample for investigation is: A Nasopharyngeal swab B Tracheal aspiration C Cough plate culture D Sputum culture 💡 Explanation A child presented with complaints of cough with a characteristic inspiratory whoop. He was not immunised. Sample for investigation is: ✓ Correct Answer: A. Nasopharyngeal swab