PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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test for antibodies that bind to antigens on that virus
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extract macrophages and test MHC proteins
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look for histamine in blood
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check stool sample for virus
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Detailed explanation-1: -To do a COVID-19 antibody test, typically a member of your health care team takes a blood sample. It’s taken by a finger prick or by drawing blood from a vein in your arm. Then the sample goes to a lab for testing to find out whether you’ve developed antibodies against the COVID-19 virus.
Detailed explanation-2: -The detection of specific DNA and RNA from viruses is mainly performed by PCR. These molecular techniques are commonly used to obtain positive serological results because of their high sensitivity and specificity.
Detailed explanation-3: -The most widely employed methods are viral culture and antigen detection by FA staining or EIA. Suitable specimens include nasopharyngeal aspirates, washings, or swabs; bronchial washings; and bronchoalveolar lavage fluid.