Activated Charcoal - Offical Flashcards
Class
Absorbent, Antidote
Mechanism of action
Absorbs toxic substances from the GI bleed
Indications
Most oral poisoning and medication overdoses; can be used after evacuation of poisons
Contraindications
Oral administration to comatose patient; after ingestion of corrosives, caustics, petroleum distillates (ineffective and may induce vomiting) simultaneous administration with other oral drugs. Use caution in patients experiencing abdominal pain of unknown m origin or known GI obstruction
Adverse reaction/ side effects
If aspirated, can induce fatal form of pneumonitis, constipation, black stools, diarrhea, vomiting, bowel obstruction
Drug interactions
Bonds with and generally inactivates whatever it is mixed with
Adult dose
1 to 2 g/kg. PO or NG tube
Pedi dose
1 to 2 / kg PO or NG tube
Duration of action
Onset: immediate. Peak effect: Depends on GI function. Duration: Will act until excreted
Pregnancy class
C
Special consideration
Often used in conjunction with magnesium citrate. Must be stored in a closed container. Be sure to mix contents wells before administration due to separation while being stored. Does not absorb cyanide, lithium, iron, lead, or arsenic.
Activated charcoal is no longer used in some EMS system but paramedics may still encounter it.