Which condition is a contraindication to activated charcoal?

Which condition is a contraindication to activated charcoal?

• A. Decreased level of consciousness rendering patient unable to protect airway
• B. Recent gastric surgery
• C. Stable vital signs
• D. Mouth sore

Answer: (B)

Activated charcoal adsorbs many ingested toxins in the GI tract, but it must be given only when the patient can protect their airway. If a patient has a decreased level of consciousness and cannot keep the airway open or clear, giving charcoal risks aspiration into the lungs, which can cause severe chemical pneumonitis or pneumonia. That airway-protection requirement is what makes this a contraindication. Recent gastric surgery is not a standard contraindication by itself; charcoal may be used if the airway is protected and there are no other contraindications (like caustic ingestion or a substance not adsorbed by charcoal). Stable vital signs don’t preclude use, and a mouth sore doesn’t affect the safety of administration.

Activated charcoal adsorbs many ingested toxins in the GI tract, but it must be given only when the patient can protect their airway. If a patient has a decreased level of consciousness and cannot keep the airway open or clear, giving charcoal risks aspiration into the lungs, which can cause severe chemical pneumonitis or pneumonia. That airway-protection requirement is what makes this a contraindication.

Recent gastric surgery is not a standard contraindication by itself; charcoal may be used if the airway is protected and there are no other contraindications (like caustic ingestion or a substance not adsorbed by charcoal). Stable vital signs don’t preclude use, and a mouth sore doesn’t affect the safety of administration.