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

question 30

Multiple Choice

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?

• A) Mycelia
• B) Antibodies
• C) Red blood cells
• D) A fungal antigen
• E) Fungal cells

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