ATI LPN
Pediatric Gi Practice Questions Quizlet Questions
Question 1 of 5
What is the most appropriate antibiotic for treatment of her pneumonia?
Correct Answer: C
Rationale: A 10-year-old with lobar pneumonia and a history of cefaclor reaction (rash, target lesions, arthralgia) and familial penicillin anaphylaxis requires a safe antibiotic. Clindamycin (
Choice
C) is appropriate for community-acquired pneumonia, covering Streptococcus pneumoniae and some atypicals, and avoids beta-lactam cross-reactivity risks from her cephalosporin reaction and penicillin family history. Ceftriaxone (
Choice
A) and penicillin (
Choice
D), as beta-lactams, risk allergic reactions. Ciprofloxacin (
Choice
B) is less preferred in children due to side effects and atypical coverage focus. Clindamycin is the safest, effective choice.
Question 2 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 3 of 5
The last dose of hepatitis B vaccine should not be given before age:
Correct Answer: D
Rationale: The third hepatitis B dose is recommended at 6 months , per CDC, ensuring full immunity. Earlier doses (A-
D) are part of the schedule but not the final one.
Question 4 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 5 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.