question........! - kindmd

[ArchivalUser]

A young patient is febrile, and has pharyngeal erythema with a tonsillar abscess. His throat is very sore and a throat culture on blood agar yields gram positive cocci that are beta-hemolytic. The organism grew on mannitol salt agar and medium turned yellow. Which of the following organisms is most likely causing the patient's illness?

A. Corynebacterium diphtheria
B. Haemophilus influenzae
C. Streptococcus pyogenes
D. Streptococcus salivarius
E. Staphylococcus aureus

[ArchivalUser]

Really need to clear this question guys....HELP plz !

[ArchivalUser]

EE staph aureus turns yellow----Aures latin for GOLD

[ArchivalUser]

The organism is
Gram positive cocci- Staph or strept {from the list}
beta hemolytic- Either group A/B strept or Staph
The organism grows on mannitol agar- Staph.
The organisms turns the medium Yellow- aureus, i.e. staph aureus

[ArchivalUser]

E

[ArchivalUser]

E..

[ArchivalUser]

Oh thanks guys.....

Didn't know staph had tht property of turning yellow !!