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ATI RN · Obstetrics and Pediatrics · Pediatric Immunization Test Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Primary immunodeficiency producing susceptibility to infection by viruses and molds is due to?

A. B-cell deficiency

B. T-cell deficiency

C. Phagocyte deficiency

D. Complement deficiency

Expert Explanatory Rationale

Correct Answer: T-cell deficiency

Question 2 of 5

A 7-year-old child presented with severe stridor and abdominal pain, he gives history of recurrent episodes of nonpruritic edema lasting 48 to 72 hours, which usually triggered by stress, or anxiety. Of the following, the MOST likely cause is deficiency of

A. factor H

B. factor I

C. C1 inhibitor

D. properdin

Expert Explanatory Rationale

Correct Answer: C1 inhibitor

Question 3 of 5

Which of the following provides antiviral state to cells

A. IL-1

B. IL-6

C. IL-8

D. INF-G

Expert Explanatory Rationale

Correct Answer: INF-G

Question 4 of 5

Natural killer cells

A. Phagocytosis and bacteriocidal mechanisms, antigen presentation

B. Lysis of some virally infected cells

C. Killing parasites

D. Phagocytosis and bacteriocidal mechanisms

Expert Explanatory Rationale

Correct Answer: Lysis of some virally infected cells

Question 5 of 5

Neutropenia (for white children 1 year of age or older) is defined as an absolute neutrophil count (ANC) less than

A. 2500/mm3

B. 2000/mm3

C. 1500/mm3

D. 1000/mm3

Expert Explanatory Rationale

Correct Answer: 1500/mm3

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