ATI RN
Immune System Exam Questions Questions
Question 1 of 5
Bacterial infections can cause a serious, potentially fatal systemic inflammatory response called
Correct Answer: C
Rationale: Septic shock is a systemic inflammatory response to bacterial infection, potentially fatal, unlike anaphylaxis (allergic), pelvic disease (local), or pneumonia (lung-specific).
Question 2 of 5
Which of the following statements best describes the classical complement pathway effector function?
Correct Answer: D
Rationale: The classical pathway, triggered by antibodies, promotes inflammation, lysis (via MAC), and opsonization (via C3b), making all options correct.
Question 3 of 5
Which of the statements below correctly describes Bcells and plasma cells?
Correct Answer: D
Rationale: Plasma cells are B cell derivatives that secrete antibodies, with large cytoplasm and ER, unlike naïve B cells.
Question 4 of 5
CD8 co-receptors:
Correct Answer: C
Rationale: CD8+ T cells (~35%) interact with MHC1, not MHCII; CD4 marks helper T cells.
Question 5 of 5
Pregnancy test detects the presence of which of the following?
Correct Answer: B
Rationale: Pregnancy tests detect HCG , a hormone; Rh , proteins , or agglutination are unrelated.