Situation 18.1
In an immunodiffusion test to diagnose histoplasmosis, patient's serum is placed in a well in an agar plate. In apositive test, a precipitate forms as the serum diffuses from the well and meets material diffusing from a second well
-In Situation 18.1, what is in the second well?

Question

Quizplus · Accepted Answer

In an immunodiffusion test for diagnosing histoplasmosis, the second well contains a fungal antigen specific to Histoplasma capsulatum. When the patient's serum, containing antibodies, diffuses and meets the fungal antigen, a precipitate forms indicating a positive test.

Situation 18.1 In an Immunodiffusion Test to Diagnose Histoplasmosis, Patient's Serum Is