CPEN CPEN Toxicology and Poisoning Emergencies

Question 1

A 3-year-old presents after ingesting acetaminophen. Which antidote is indicated for acetaminophen toxicity?

Accepted Answer

N-acetylcysteine (NAC)

Answer

N-acetylcysteine (NAC) is the antidote for acetaminophen toxicity as it replenishes hepatic glutathione and prevents liver injury.

Question 2

Which finding is most consistent with organophosphate poisoning in a pediatric patient?

Accepted Answer

Miosis, bradycardia, and excessive secretions

Answer

Organophosphate poisoning causes a cholinergic toxidrome characterized by miosis, bradycardia, bronchospasm, and excessive secretions (SLUDGE).

Question 3

A toddler ingests iron tablets. Which early sign indicates iron toxicity?

Accepted Answer

Hematemesis and diarrhea

Answer

The early gastrointestinal phase of iron toxicity presents with vomiting, hematemesis, and diarrhea due to direct mucosal injury.

Question 4

Which medication is the antidote for benzodiazepine overdose in a pediatric patient?

Accepted Answer

Flumazenil

Answer

Flumazenil competitively antagonizes benzodiazepine receptors and reverses CNS and respiratory depression caused by benzodiazepine overdose.

Question 5

A 5-year-old ingested a button battery. What is the most serious immediate risk?

Accepted Answer

Esophageal perforation from electrical current and alkali burns

Answer

Button batteries lodged in the esophagus generate an electrical current and hydroxide ions that cause rapid, severe alkali burns and esophageal perforation.

CPEN - Certified Pediatric Emergency Nurse Practice Test

CPEN - Certified Pediatric Emergency Nurse Practice Test

CPEN CPEN Toxicology and Poisoning Emergencies