This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'VDRL is a type of: September 2010 \nSelect and explain. \nA. Indirect hemagglutination test, B. Slide flocculation test, C. Gel precipitation test, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Slide flocculation test Venereal Disease Research Laboratory (VDRL) Test is a slide flocculation test employed in the diagnosis of syphilis. Since the antigen used in this test is cardiolipin, which is a lipoidal extracted from beef hea, it is not a specific test. This test is also classified as non-specific or non-treponemal or standard test. The antibodies reacting with cardiolipin antibodies have been traditionally (but incorrectly) termed "regain".', 'role': 'assistant'}]