ATI RN
Pediatric Nursing Certification Practice Questions Questions
Question 1 of 5
Hereditary methemoglobinemia is most commonly due to deficiency of which enzyme?
Correct Answer: A
Rationale: Cytochrome b5 reductase deficiency impairs the reduction of methemoglobin back to functional hemoglobin, causing methemoglobinemia.
Question 2 of 5
Predictive factors of a poor prognosis for atopic dermatitis include all the following EXCEPT
Correct Answer: C
Rationale: Early onset is typically associated with a worse prognosis.
Question 3 of 5
A 5-year-old is noted by the parents to snore at night. The child has also had problems staying awake in preschool and has had behavioral problems. The father also snores. Physical examination of the child reveals large, pink, nonexudative tonsils. The most appropriate next step is
Correct Answer: B
Rationale: Polysomnography is essential for diagnosing obstructive sleep apnea, especially given the child's symptoms of snoring, daytime sleepiness, and enlarged tonsils.
Question 4 of 5
The MOST important risk factor for necrotizing enterocolitis (NEC) in preterm infants is
Correct Answer: D
Rationale: Gestational age and birth weight are the most critical risk factors for NEC, with lower gestational age and lower birth weight significantly increasing the risk.
Question 5 of 5
A 5-year-old is noted by the parents to snore at night. The child has also had problems staying awake in preschool and has had behavioral problems. The father also snores. Physical examination of the child reveals large, pink, nonexudative tonsils. The most appropriate next step is
Correct Answer: B
Rationale: Polysomnography is essential for diagnosing obstructive sleep apnea, especially given the child's symptoms of snoring, daytime sleepiness, and enlarged tonsils.