ATI RN
Immune System Practice Questions Questions
Question 1 of 5
Which type of antibody is MOST effective in activating complement?
Correct Answer: D
Rationale: IgM is most effective due to pentameric structure; IgG3 is strong but less so.
Question 2 of 5
Specific immunity can be acquired either naturally or artificially and involves
Correct Answer: A
Rationale: Specific immunity (adaptive) involves antigens (trigger), antibodies (response), and complement pathways, making all options relevant.
Question 3 of 5
Examples of pathogens that cause human disease include:
Correct Answer: D
Rationale: All of the above are examples of pathogens that cause human disease, including bacteria, viruses, fungi, and parasites.
Question 4 of 5
Precursors of macrophages are called
Correct Answer: D
Rationale: Monocytes differentiate into macrophages; T , B , and plasma cells are distinct.
Question 5 of 5
Hemolytic disease of the newborn typically results from immunization of an RH- mother with Rh+ blood from her first pregnancy, the antibodies reacting against the fetus in a later pregnancy.
Correct Answer: A
Rationale: True : Rh- mother sensitized by Rh+ fetus affects later Rh+ pregnancies.