Phospholipid used to investigate syphilis by the reagin test is________________?
Correct answer: A. Cardiolipin
- A. Cardiolipin
- B. Plasminogen
- C. Palmityl lecithin
- D. Serine
Explanation
The reagin test for syphilis is a non-treponemal test that detects antibodies against cardiolipin-lecithin-cholesterol complexes. Cardiolipin is therefore the key phospholipid antigen used in tests such as VDRL and RPR.
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