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ATI RN · Obstetrics and Pediatrics · Pediatric Immunizations NCLEX Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following is NOT a structural chain in class I MHC?

A. Î²1

B. Î±1

C. Î±2

D. Î±3

Expert Explanatory Rationale

Correct Answer: Î²1

Question 2 of 5

A 3-year-old boy presented with recurrent subcutaneous abscesses, lymphadenitis, osteomyelitis, and family history of recurrent infections. The hallmark of this condition is

A. hypocalcemia

B. atopic dermatitis

C. thrombocytopenia

D. granuloma formation

Expert Explanatory Rationale

Correct Answer: granuloma formation

Question 3 of 5

Repeated meningococcal infections suggest what type of immune disorder?

A. B-cell defect

B. T-cell defect

C. Combined B- and T-cell defect

D. Complement component deficiency

Expert Explanatory Rationale

Correct Answer: Complement component deficiency

Question 4 of 5

Graft vs host disease often accompanies transplantation of?

A. Cartilage

B. Kidney

C. Bone marrow

D. Heart

Expert Explanatory Rationale

Correct Answer: Bone marrow

Question 5 of 5

Which of the following is required for a CD8+ cell to differentiate into an effector cytotoxic T cell (CTL)? Is this a physical interaction?

A. Recognition of antigen; No

B. Costimulatory signals from CD4+ TH cells; No

C. Recognition of antigen; Yes

D. Costimulatory signals from CD4+ TH cells; Yes

Expert Explanatory Rationale

Correct Answer: Costimulatory signals from CD4+ TH cells; Yes

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