Poisoning Flashcards
Ingestions not to be treated with Charcoal
Alcohol, iron, caustics, hydrocarbons, ethylene glycol, lithium, heavy metals
Activated charcoal dose
1gm/kg body weight, First dose in 70% sorbitol NOT subsequent doses
Multiple doses of charcoal potentially useful for
theophylline, phenobarbital, salicylate, digoxin (drugs with eneterohepatic circulation or delayed absorption)
urine alkalization
helpful with Aspirin poisoning
- hyperthermia, tachycardia, hypertension tachypnea, vasodilatation (red)
- Agitations, Hallucinations, Delirium (mad)
- MYDRIASIS (bat)
- dry, flushed skin (bone)
ANTICHOLINERGICS antihistamines antipsychotics atropine TCAs amanita mushrooms deadly nightshade, jimson weed
- Bradycardia
- Confusion, Delirium, Seizures, Coma
- MIOSIS
- diaphoresis
SLUDGE
CHOLINERGICS organophosphate insecticides carbamate insecticides nerve gas myasthenia gravis medications
- Hypothermia, Bradycardia, Hypotension, hypotension, low RR
- Sedation, Coma
- MIOSIS
- Dry Pale skin
OPIODS, SEDATIVE, HYPNOTICS
Increased osmolar gap
alcohols
increase anion gap
acids
4 stages of acetaminophen toxicity
Satge 1 (0-24hrs) nausea, anorexia, vomiting Stage 2 (12- 48hrs) asymptomatic Stage 3 (2- 7 days) fulminant hepatic failure Stage 4 (1-2 weeks) die/recovery/livertransplant
Rx of acetaminophen toxicity
- Charcoal
- N-acytylcysteine (mucomyst) initiate upto 24hrs after ingestion. Oral dose - 140 mg/kg then 70 q4 times 17 doses.
IV dose 150mg/kg over 1 hour, 50 mg/kg over 4 hrs, then 100mg/kg over 16 hours. Total 300mg/kg over 21 hrs.
Rx of anticholinergics
Charcoal
physostigmine
Benzodiazepines
respiratory depression, bradydysrhythmias hypotension hallucinations seizures hypoglycemia
Beta blockers
Rx of beta blockers
Activate charcoal whole bowel irrigation glucagon (recerses -- hypoglycemia, hypotension, bradycardia) atropine (bradycardia) milrinone epinephrine (cardiac arrest)
Button Batteries - electrical discharge, pressure leakage
May be asymptomatic
Mx
- Xray AP - lateral nasopharynx to anus (12mm)
- Esophageal location - remove emergently
- distal (stomach) left in place, reimage in 48 hrs
- if 15mm remove endoscopically
Coin ingestion Mx
- Xray AP - lateral nasopharynx to anus
- Esophageal and asymptomatic - observe 24 hrs
- Remove endoscopically if >24 hrs or symptomatic
rare earth magnets
- Xray to locate and quantify the magnet
- Abdominal X ray if positive obtain lateral
Mucosal burns, pain, drooling, stridor, refusal to eat/drink
caustic ingestions
Caustic ingestions alkaline
ammonia >5% solution
sodium hypochlorite >5% solution (bleach)
laundry detergents, drain openers
Caustic ingestions Acids
drain openers, toilet bowel cleaners, rust removers, oven cleaners
Rx of Caustic ingestion
Endoscopy, airway support if steroids,
Mx of single rare earth magnet -
no metals or magnets near child, x rays to confirm passage
Mx of mutiple rare earth magnets
symptomatic- surgical removal
asymptomatic - golytlee, x rays
if no progression over 24 hrs - surgical removal