How does alcohol intoxication affect consent capacity?

How does alcohol intoxication affect consent capacity?

• A. BAL > 0.08 means the patient lacks capacity; require a healthcare proxy unless true emergency; capacity is subjective.
• B. BAL > 0.08 means capacity remains.
• C. Alcohol use has no bearing on capacity.
• D. A healthcare proxy is never needed.

Answer: (A)

Alcohol intoxication impairs the cognitive abilities needed for informed consent—understanding information, appreciating consequences, reasoning about options, and communicating a choice. When the blood alcohol level exceeds about 0.08, clinicians commonly view this as a strong indicator that capacity to consent is compromised. In such cases, a healthcare proxy or surrogate decision-maker is appropriate unless there is a true emergency where treatment is needed immediately and consent can be implied. Capacity is decision-specific and can fluctuate with intoxication, so reassessment is important. The other statements miss the impact of intoxication on decision-making, or wrongly claim a proxy is never needed.

Alcohol intoxication impairs the cognitive abilities needed for informed consent—understanding information, appreciating consequences, reasoning about options, and communicating a choice. When the blood alcohol level exceeds about 0.08, clinicians commonly view this as a strong indicator that capacity to consent is compromised. In such cases, a healthcare proxy or surrogate decision-maker is appropriate unless there is a true emergency where treatment is needed immediately and consent can be implied. Capacity is decision-specific and can fluctuate with intoxication, so reassessment is important. The other statements miss the impact of intoxication on decision-making, or wrongly claim a proxy is never needed.