ATI RN
Immune System NCLEX Questions Quizlet Questions
Question 1 of 5
The ability of the immune system to recognise self antigens versus non-self antigen is an example of:
Correct Answer: B
Rationale: Tolerance is the immune system's ability to distinguish self from non-self, preventing autoimmunity, unlike specific immunity (response type).
Question 2 of 5
A person with anti-A and anti-B antibodies in their blood has what blood type?
Correct Answer: D
Rationale: Type O has anti-A and anti-B antibodies; A , B , and AB lack these.
Question 3 of 5
T cytotoxic cells produce cytokinins which cause the lysis of other target cells.
Correct Answer: A
Rationale: Cytotoxic T cells release cytokines (e.g., perforins) to lyse cells; cytokinins are plant hormones, likely a typo.
Question 4 of 5
The stimulation of antigen-specific T-cells by appropriately presented antigen, alone results in _____________.
Correct Answer: C
Rationale: T-cell stimulation leads to proliferation; allergies need more factors. Note: Sol says A, but C is standard.
Question 5 of 5
Which of the following would most likely increase a person's risk of invasion by pathogenic microbes?
Correct Answer: B
Rationale: Loss of epidermal tissue breaches a key physical barrier, increasing infection risk.