ATI RN
Pediatric Immunization NCLEX Questions Ricci Questions
Question 1 of 5
Which of the following is a transmembrane glycoprotein that serves as a co-receptor for the T cell receptor (TCR), and is also known as a cytotoxic T cell (CTL)?
Correct Answer: B
Rationale: CD8+ is a co-receptor on cytotoxic T cells (CTLs), aiding TCR recognition of MHC class I-antigen complexes.
Question 2 of 5
What is the function of major histocompatibility complex (MHC) molecules?
Correct Answer: B
Rationale: MHC molecules present peptide antigens to T cells, enabling adaptive immune recognition.
Question 3 of 5
Which of the following is an agent (e.g. aluminum salts, oil-based, virosomes) often used to modify or augment the effects of a vaccine by stimulating the immune system to respond to the vaccine more vigorously, and thus providing increased immunity to a particular disease?
Correct Answer: D
Rationale: Adjuvants enhance vaccine efficacy by boosting immune responses, distinct from antigens or immunogens.
Question 4 of 5
Each antibody molecule contains heavy chains and light chains.
Correct Answer: D
Rationale: Each antibody has two heavy and two light chains, forming a Y-shaped structure.
Question 5 of 5
Which of the following binds to an Fc receptor on mast cells and basophils?
Correct Answer: C
Rationale: IgE binds Fc receptors on mast cells and basophils, mediating allergic responses.