Name a major contraindication to the use of activated charcoal in EMS.

Name a major contraindication to the use of activated charcoal in EMS.

• A. Inability to protect airway or unconsciousness.
• B. Ingestion of water.
• C. Mild nausea.
• D. Patient has just eaten.

Answer: (D)

Activated charcoal works by binding many poisons in the gut, but it must be given only when the patient can protect their airway. The major contraindication is when the patient cannot protect the airway or is unconscious, because charcoal in the stomach can be easily aspirated into the lungs and cause serious breathing problems. If airway protection cannot be ensured, charcoal should not be used until the airway is secured (for example, with intubation if needed). Having just eaten is not a strict contraindication; charcoal can be given if the patient is able to protect their airway and there is a reasonable expectation that it will adsorb the toxin. The risk with a recent meal is mainly that vomiting could occur, which would raise aspiration risk if the airway isn’t protected, but it isn’t an absolute barrier on its own.

Activated charcoal works by binding many poisons in the gut, but it must be given only when the patient can protect their airway. The major contraindication is when the patient cannot protect the airway or is unconscious, because charcoal in the stomach can be easily aspirated into the lungs and cause serious breathing problems. If airway protection cannot be ensured, charcoal should not be used until the airway is secured (for example, with intubation if needed).

Having just eaten is not a strict contraindication; charcoal can be given if the patient is able to protect their airway and there is a reasonable expectation that it will adsorb the toxin. The risk with a recent meal is mainly that vomiting could occur, which would raise aspiration risk if the airway isn’t protected, but it isn’t an absolute barrier on its own.