Correct Answer for : USMLE step 02 MCQ 2 : A 12 year old girl has fever and pain in her joints.

Correct Answer: B


Rheumatic fever is an inflammatory disease that occurs following a Group A streptococcal infection, (such as strep throat or scarlet fever). Believed to be caused by antibody cross-reactivity that can involve the heart, joints, skin, and brain,the illness typically develops two to three weeks after a streptococcal we cant expect to see sore throat during our physical examination ,Erythema marginatum is one of the Major criteria: rash that begins on the trunk or arms as macules and spreads outward to form a snake like ring while clearing in the middle. The rings are barely raised and are non-pruritic. The face is generally spared.This rash never starts on the face and it is made worse with heat.

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