ATI RN
Pediatric Infectious Disease NCLEX Questions Questions
Question 1 of 5
All the following are risk factor for polycythemia EXCEPT
Correct Answer: B
Rationale: Trisomy 13 (A), adrenogenital (C), hyperthyroidism (D), and diabetic mothers (E) increase RBCs. Prematurity (B) typically reduces hematocrit.
Question 2 of 5
The diagnosis of primary pulmonary hypertension of the newborn (PPHN) is confirmed by
Correct Answer: A
Rationale: Echocardiography (A) confirms PPHN by showing right-to-left shunting, per diagnostic standards.
Question 3 of 5
Erythroblastosis fetalis classically is caused by Rh blood group incompatibility, which of the following is not antigenic in Rh antigen system?
Correct Answer: D
Rationale: Rh antigens include C, D, E, and e (A, B, C, E). 'd' (D) isn’t an antigen; it denotes D absence.
Question 4 of 5
Cyanosis becomes evident clinically when the unsaturated hemoglobin is equal or more than
Correct Answer: C
Rationale: Cyanosis appears when deoxygenated hemoglobin ≥5 g/dL (C), per clinical thresholds.
Question 5 of 5
A full-term newborn male whose mother had reactive Venereal Disease Research Laboratory (VDRL) and microhemagglutination assay-Treponema pallidum (MHA-TP) results at the time of delivery was evaluated. He was anemic and had thrombocytopenia and mild hepatomegaly. He also had a desquamative skin rash consistent with congenital syphilis. His CSF was clear, with 5 white blood cells (WBCs), 0 RBCs, protein of $80 \mathrm{mg} / \mathrm{dL}$, and glucose of $49 \mathrm{mg} / \mathrm{dL}$; the CSF VDRL result was nonreactive. Based on this examination, which of the following is true?
Correct Answer: C
Rationale: Symptomatic congenital syphilis requires ruling out neurosyphilis with CSF evaluation; normal CSF does not exclude it, necessitating full treatment.