ATI RN
Lymphatic System Practice Questions Questions
Question 1 of 5
In healthy adults, neutrophils represent approximately half of their white blood cells. During a bacterial infection, this number often rises to >80%. One factor contributing to this rise is:
Correct Answer: C
Rationale: Bone marrow releases neutrophils during infection; tissues , proliferation (B/C), or monocyte differentiation don't explain the rise.
Question 2 of 5
Which of the following wander through the interstitial fluid and consume any bacteria and virus-infected cells they encounter?
Correct Answer: C
Rationale: Macrophages are phagocytic cells that patrol interstitial fluid, engulfing bacteria and infected cells, unlike erythrocytes (red blood cells), leukocytes (general white cells), or interferons (antiviral proteins).
Question 3 of 5
Which of the following choices best describes a plasma cell?
Correct Answer: B
Rationale: Plasma cells are differentiated B cells that produce antibodies, not T cells or persistent memory cells.
Question 4 of 5
The first vaccination provides immunity because
Correct Answer: C
Rationale: Vaccines stimulate B cells with antigens, producing plasma cells (antibodies) and memory cells for immunity, not inflammation, pre-made antibodies, or antibiotics.
Question 5 of 5
Select a characteristic of the adaptive immune response.
Correct Answer: B
Rationale: Adaptive immunity takes days to develop specificity, unlike innate (PAMPs) or T cell antibody secretion (B cells).