ATI RN
Ricci Maternity and Pediatrics NCLEX Question Immunization Questions
Question 1 of 5
Which of the following is NOT a structural chain in class II MHC?
Correct Answer: C
Rationale: Class II MHC includes α1, α2, β1, and β2, but not α3.
Question 2 of 5
In the processing pathway for intracellular antigens, the proteasome will viral protein molecules until peptides of residues are formed; these can bind to class I MHC molecules.
Correct Answer: C
Rationale: The proteasome breaks down intracellular (e.g., viral) proteins into peptides of 8-11 residues, suitable for MHC Class I binding.
Question 3 of 5
The B cell co-receptor can co-cluster with the BCR and increase the efficiency of signaling. Which of the following proteins does NOT make up the co-receptor?
Correct Answer: B
Rationale: The B cell co-receptor includes CD19, CD21, and CD81; CD20 is a separate B cell marker not part of the co-receptor.
Question 4 of 5
Lyse certain virally infected cells and some tumor cells
Correct Answer: D
Rationale: T-cytotoxic (CD8+) cells lyse virally infected and tumor cells.
Question 5 of 5
Granulocyte-macrophage colony-stimulating factor (GM-CSF) causes an increase in the production of which of the following?
Correct Answer: D
Rationale: GM-CSF boosts production of neutrophils and monocytes/macrophages.