ATI RN
Immune System NCLEX Questions Quizlet Questions
Question 1 of 5
Monoclonal antibodies are routinely used in all of the following EXCEPT
Correct Answer: D
Rationale: Monoclonal antibodies aid leukemia , pathogen , and tumor studies; manipulation is less routine.
Question 2 of 5
Complement fixation is one of the most crucial host defenses against infections. The complement is activated by;
Correct Answer: C
Rationale: IgM and IgG activate complement; not IgM only or all classes .
Question 3 of 5
Which of these does NOT act as a protecting barrier for the body surface?
Correct Answer: C
Rationale: Salivary amylase digests, not protects; mucus , skin , and acid are barriers.
Question 4 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 5 of 5
One reason that pathogenic microorganisms have an advantage in the host they infect is because they:
Correct Answer: D
Rationale: Pathogens reproduce and evolve rapidly, outpacing the host's immune elimination, unlike prior exposure or immune strengthening.