ATI RN
Pediatric Immunizations NCLEX Questions Questions
Question 1 of 5
Which of the following is a glycoprotein expressed on the surface of T helper cells, regulatory T cells, monocytes, macrophages, and dendritic cells?
Correct Answer: A
Rationale: CD4+ is expressed on T helper cells, regulatory T cells, and some innate cells like macrophages, aiding immune coordination.
Question 2 of 5
If the structure of an individuals MHC molecules makes it impossible for them to recognize and bind any peptide antigen from a given virus, that individual will still be able to activate a T cell response to cells infected with that virus.
Correct Answer: B
Rationale: If MHC cannot bind viral peptides, T cells cannot be activated, as MHC presentation is essential for T cell recognition.
Question 3 of 5
In the electrophoresis of human serum, which of the following is the most electronegative and thus migrates farthest toward the positive electrode?
Correct Answer: A
Rationale: Albumin, being highly electronegative, migrates farthest toward the positive electrode in electrophoresis.
Question 4 of 5
Involved in allergic responses
Correct Answer: B
Rationale: IgE is key in allergic responses, binding to mast cells and basophils to trigger histamine release.
Question 5 of 5
Which of the following is NOT involved in the antigen-antibody interaction?
Correct Answer: D
Rationale: Peptide bonds are structural within proteins, not involved in antigen-antibody binding, unlike the other forces.