A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Which of the following will be most useful for a rapid diagnosis?
A) viral culture
B) serological test for antigen
C) serological test for antibodies
D) microscopic examination of blood
E) bacterial culture

Question

Quizplus · Accepted Answer

A serological test for antibodies would be most useful for a rapid diagnosis, especially if the rash is suspected to be due to a viral or bacterial infection that elicits a specific antibody response.

A 25-Year-Old Man Presented with Fever, Malaise, and a Rash