ATI RN
ATI RN Test Bank
Chapter 20 The Lymphatic System and Immunity Sample Questions Questions
Question 1 of 4
What will stimulate active immunity?
Correct Answer: C
Rationale: Active immunity arises from pathogen infection or vaccination.
Question 2 of 4
Peripheral tolerance is maintained by all of the following mechanisms except
Correct Answer: B
Rationale: Thymus deletion is central, not peripheral; anergy , clonal deletion , and Tregs are peripheral.
Question 3 of 4
The class or subclass of an immunoglobulin is determined by the:
Correct Answer: A
Rationale: CH region determines Ig class; CL is light chain, VH and VL are variable.
Question 4 of 4
In the above question, resolution of parasitic infections of the gastrointestinal tract is dependent upon the activation of:
Correct Answer: D
Rationale: Th2 cells drive IgE via IL-4/IL-13 for parasites; Th1 is antiviral, not IgG or cytotoxic .