Test used to detect the presence of antibodies in a patient’s serum.
a. Direct fluorescent antibody
b. Indirect fluorescent antibody
c. Rabies immune globulin
d. Killed rabies virus
e. None of the above

검증된 단계별 안내

Understand the purpose of the test: it is designed to detect antibodies present in a patient's serum, which means we are looking for a method that identifies antibodies rather than antigens or providing treatment.

Review the options given: options a and b involve fluorescent antibody techniques, option c is a treatment (immune globulin), option d is a vaccine (killed virus), and option e is none of the above.

Recall that a direct fluorescent antibody test uses fluorescently labeled antibodies that bind directly to antigens in a sample, so it detects antigens, not antibodies.

Recall that an indirect fluorescent antibody test uses an unlabeled primary antibody from the patient’s serum that binds to the antigen, followed by a fluorescently labeled secondary antibody that binds to the primary antibody, thus detecting antibodies in the serum.

Conclude that the test used to detect antibodies in a patient’s serum corresponds to the indirect fluorescent antibody technique (option b).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Antibody Detection Methods

Antibody detection methods identify specific antibodies in a patient's serum to diagnose infections or immune status. Techniques like direct and indirect fluorescent antibody tests use labeled antibodies to visualize antigen-antibody reactions, helping detect immune responses.

Direct Fluorescent Antibody (DFA) Test

The DFA test uses fluorescently labeled antibodies that bind directly to antigens in a sample. It detects the presence of specific pathogens by visualizing fluorescence under a microscope, but it does not detect antibodies in serum.

Indirect Fluorescent Antibody (IFA) Test

The IFA test detects antibodies in a patient's serum by using an unlabeled antigen and a fluorescently labeled secondary antibody that binds to the patient's antibodies. This method is commonly used to confirm exposure or immune response to infections.

Test used to detect the presence of antibodies in a patient’s serum.a. Direct fluorescent antibodyb. Indirect fluorescent antibodyc. Rabies immune globulind. Killed rabies viruse. None of the above