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
Answer is A. Peussis is an acute highly contagious respiratory tract infection caused by Bordetella peussis. - it is called whooping cough due to the characteristic whoop produced by the air rushing in during inspiration through half open glottis. - diagnosis is mainly based on clinical symptoms. - the sample of choice is nasopharyngeal swab. Reference : Ghai essential pediatrics, eighth edition, pg no:242,243