Use the following choices to answer questions 1 and 2:
a. Hemolysis
b. Hemagglutination
c. Hemagglutination inhibition
d. No hemolysis
e. Precipitin ring forms
Patient’s serum, Chlamydia, guinea pig complement, sheep red blood cells, and anti-sheep red blood cells are mixed in a tube. What happens if the patient has antibodies against Chlamydia?

검증된 단계별 안내

Step 1: Identify the components in the mixture: patient's serum (which may contain antibodies), Chlamydia antigen, guinea pig complement, sheep red blood cells (RBCs), and anti-sheep RBC antibodies.

Step 2: Understand the role of each component: the patient's serum may have antibodies specific to Chlamydia; guinea pig complement can mediate lysis if antibodies bind to antigens; sheep RBCs serve as indicator cells; anti-sheep RBC antibodies can cause agglutination of sheep RBCs.

Step 3: Consider the immunological reaction if the patient has antibodies against Chlamydia: these antibodies will bind to Chlamydia antigens forming immune complexes.

Step 4: Recognize that the complement will be consumed (activated) by these immune complexes, reducing the amount of complement available to participate in other reactions such as hemolysis of sheep RBCs.

Step 5: Predict the outcome: because complement is used up by the antigen-antibody complexes, the anti-sheep RBC antibodies cannot cause hemolysis of sheep RBCs, resulting in no hemolysis (choice d).

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.

Hemolysis

Hemolysis is the destruction or lysis of red blood cells, releasing hemoglobin into the surrounding fluid. In immunological assays, hemolysis indicates activation of the complement system, often triggered by antigen-antibody complexes on red blood cells, leading to cell rupture.

Complement System Activation

The complement system is a group of proteins that enhance immune responses, including lysing pathogens or cells. When antibodies bind to antigens, they can activate complement, resulting in processes like hemolysis, which serves as a marker for the presence of specific antibodies in diagnostic tests.

Antigen-Antibody Interaction in Diagnostic Tests

Diagnostic tests often rely on specific binding between antibodies and antigens to detect infections. In this scenario, if the patient’s serum contains antibodies against Chlamydia, these antibodies form complexes with Chlamydia antigens, which can then trigger complement-mediated hemolysis of indicator red blood cells.