<prompt> A 12-year-old child presents with fever and cervical lymphadenopathy. Oral examination shows a grey membrane on the right tonsil extending to the anterior pillar. Which of the following medium will be ideal for the culture of the throat swab for a rapid identification of the pathogen -Nutrient agarBloodagarLofflers serum slopeLowenstein Jensen medium  <response>: Rapid identification of C. diphtheria: Lofflers serum slope 68 hourBest media for isolation in carrierscontactsconvalescent: PTA 48 hourMetachromatic granules best develops on: Lofflers serum slopeRef: Apurba Sastrys Essentials of Medical Microbiology 1e p246, Ananthanarayan 9e p237 