CEN Pediatric and Obstetric Emergencies

Question 1

A 6-week-old infant presents with nonbilious projectile vomiting after every feeding. The infant is hungry after vomiting and has an olive-shaped mass palpable in the epigastrium. Which diagnosis is most likely?

Accepted Answer

Pyloric stenosis

Answer

Nonbilious projectile vomiting with a palpable olive-shaped mass in a 4–8 week old infant is classic for hypertrophic pyloric stenosis.

Question 2

A 2-year-old presents with sudden onset of choking, coughing, and unilateral decreased breath sounds. Parents report the child was playing with small toys. What is the most likely diagnosis?

Accepted Answer

Foreign body aspiration

Answer

Sudden onset choking with unilateral decreased breath sounds in a toddler after playing with small objects strongly suggests foreign body aspiration.

Question 3

Which formula is used to estimate the endotracheal tube size for a child between ages 1 and 10?

Accepted Answer

(Age / 4) + 4

Answer

The formula (Age/4) + 4 estimates the uncuffed ETT size in mm for children aged 1–10 years.

Question 4

A 4-month-old presents with poor feeding, bulging fontanelle, and inconsolable high-pitched crying. Temperature is 38.8°C rectally. What is the most critical concern?

Accepted Answer

Intracranial hemorrhage or bacterial meningitis

Answer

A bulging fontanelle with fever and high-pitched cry in an infant suggests increased intracranial pressure from bacterial meningitis or hemorrhage.

Question 5

Which drug and dose is correct for pediatric epinephrine administration during cardiac arrest via IV/IO route?

Accepted Answer

0.01 mg/kg of 1:10,000 concentration

Answer

Pediatric IV/IO epinephrine dose is 0.01 mg/kg of the 1:10,000 (0.1 mg/mL) concentration during cardiac arrest.

CEN - Certified Emergency Nurse Practice Test

CEN - Certified Emergency Nurse Practice Test

CEN Pediatric and Obstetric Emergencies