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)bacterial culture
B)microscopic examination of blood
C)serological test for antibodies
D)serological test for antigen
E)viral culture

Question

Quizplus · Accepted Answer

A serological test for antibodies would be most useful for a rapid diagnosis in this case, as it can detect the presence of antibodies produced by the immune system in response to an infection. The symptoms (fever, malaise, rash) suggest a viral or bacterial infection, and a serological test can narrow down the possible causative agent. Bacterial culture, microscopic examination of blood, and viral culture may also be helpful, but they typically take longer than a serological test and may not provide a rapid diagnosis. A serological test for antigen may also be helpful, but it depends on the specific type of infection and the availability of appropriate tests.

A 25-Year-Old Man Presented with Fever,malaise,and a Rash on His