Which antigen is injected into the skin to determine exposure and infection with Mycobacterium tuberculosis?

Question

Quizplus · Accepted Answer

Purified protein derivative (PPD) is injected into the skin to determine whether the person has been exposed to and infected with Mycobacterium tuberculosis. HLA-B27 is an antigenic marker present in most patients with Reiter syndrome. VDRL is a serologic blood test used to confirm the diagnosis of syphilis. IgE in the immune response causes mast cells to release their granules containing histamine.

Which Antigen Is Injected into the Skin to Determine Exposure