Home › Cheat Sheets › Pharmacological Therapies

Acetaminophen Poisoning in Children — NCLEX Cheat Sheet

Antidote = N-acetylcysteine

🔖 Save

👤 By the CinnaRN Clinical Content Team 🕐 Updated 2026-07-11 🏷️ Pharmacological Therapies 🔖 Free to read, print, and share

💡

Use this quick-reference guide to spot, treat, and prevent Acetaminophen Poisoning in Children on the NCLEX. Keep it handy during review and on exam day!

🩺

📌

Phases

Key facts

1: N/V, malaise (0-24 hr)
2: false improve, RUQ pain
3: hepatic failure (72-96 hr)

✅

Do

Nursing actions

Plot level on Rumack nomogram
Activated charcoal if < 1 hr
Monitor LFTs, PT/INR

🧪

Meds

Key numbers

NAC (Mucomyst) PO or IV
Most effective within 8 hr

🚩

Report

Notify / act now

Jaundice, ↑ liver enzymes
Coagulopathy, encephalopathy

✨

Quick Tip

Toxicity is dose-related; a single acute ingestion of about 150 mg/kg or more is potentially toxic.

📖 Related Topics

Digoxin Toxicity Heparin Therapy Warfarin Therapy Serotonin Syndrome

Was this helpful? ✎ Suggest an edit

Master Acetaminophen Poisoning in Children with practice, not just reading

4,700+ NCLEX-style questions with rationales, 51 interactive NGN cases, and an AI tutor — free every day, no card needed.

Practice Pharmacological Therapies questions free →

Related Pharmacological Therapies cheat sheets

Digoxin ToxicityDig level > 2.0 ng/mL Heparin TherapyMonitor aPTT, antidote protamine Warfarin TherapyMonitor INR, antidote vit K Serotonin SyndromeToo much serotonin = hyperthermia Neuroleptic Malignant SyndromeAntipsychotic emergency: lead-pipe rigidity Tardive DyskinesiaLate involuntary movements, often irreversible Lithium ToxicityToxic > 1.5 mEq/L Coagulation Studies (PT/INR/aPTT)Warfarin → INR; Heparin → aPTT