ATI LPN
Pediatric Gi Practice Questions Quizlet Questions
Question 1 of 5
Which respiratory parameter determines the volume of the lung that does not eliminate CO2?
Correct Answer: D
Rationale: Physiologic dead space is the lung volume not participating in CO2 elimination, including anatomic dead space plus alveolar dead space from non-perfused alveoli. Anatomic dead space (Choice A) is part but incomplete. Expiratory reserve capacity (Choice B) is functional volume. FEV1 (Choice C) and FVC (Choice D) measure flow and capacity, not dead space. Physiologic dead space is the full answer.
Question 2 of 5
A 2-week-old boy appears with nonbilious vomiting. He is being treated with oral erythromycin. Most likely diagnosis is:
Correct Answer: B
Rationale: Infantile hypertrophic pyloric stenosis fits, with erythromycin increasing risk via pyloric hypertrophy (AAP). Nonbilious vomiting rules out atresia , and A, B, D are less likely.
Question 3 of 5
A 5-day-old girl appears for a routine physical examination. She is receiving breast milk. Mother is worried. The child had 5 loose, greenish-yellow stools containing mucus for the past 2 days. The next step in management is:
Correct Answer: D
Rationale: Reassurance fits; 5-6 loose stools daily are normal for breastfed newborns, with mucus common (AAP). No dehydration or sepsis signs warrant A-D.
Question 4 of 5
Most common initial manifestation of childhood cerebral form of adrenoleukodystrophy (ALD) is:
Correct Answer: A
Rationale: Hyperactivity is often the first sign of cerebral ALD in children, preceding neurological decline (NORD). B-E appear later.
Question 5 of 5
Appropriate therapy for patients with pyridoxine dependency with seizures is:
Correct Answer: D
Rationale: Vitamin B6 at 10-100 mg/kg is the standard treatment for pyridoxine-dependent seizures (NORD). Lower doses (C, D) may suffice for deficiency, not dependency.