ATI RN
Pediatric Immunization NCLEX Questions Quizlet Questions
Question 1 of 5
Recognition of antigen
Correct Answer: A
Rationale: The cognitive phase is the initial recognition of antigen by immune receptors.
Question 2 of 5
Which of the following differentiates an antigen from an immunogen?
Correct Answer: C
Rationale: An antigen binds immune receptors but doesn't always provoke a response (unlike an immunogen), making c the key differentiator.
Question 3 of 5
Allows for flexibility
Correct Answer: D
Rationale: The hinge region of an antibody provides flexibility between Fab and Fc regions.
Question 4 of 5
Can transfer across the placental (maternal protection)
Correct Answer: A
Rationale: IgG crosses the placenta to provide maternal immunity to the fetus.
Question 5 of 5
Which of the following is used to enumerate and/or separate live cells that express an antigen, sorted by applying an electric charge to the stained cells?
Correct Answer: C
Rationale: FACS (fluorescence-activated cell sorting) uses fluorescence and electric charge to sort live cells based on antigen expression, unlike the other methods which do not involve cell sorting.