Which type of consent is assumed when a patient is unconscious and cannot communicate?

• A. Expressed
• B. Informed
• C. Implied
• D. Formal

Answer: (C)

In emergencies when a patient is unconscious and cannot communicate, clinicians rely on implied consent. This means treatment is provided based on the reasonable assumption that a patient would want life-saving care when there’s no opportunity to obtain explicit permission. The idea is to prevent serious harm or death by acting promptly.

Expressed consent is when the patient explicitly agrees, either verbally or in writing, before a procedure. Informed consent takes this further by ensuring the patient understands the risks, benefits, and alternatives before agreeing. Formal, as a distinct category, isn’t used to describe how consent is assumed in emergencies. The key point here is that implied consent covers urgent situations where the patient cannot speak, and delaying care to obtain agreement would risk serious harm. If a surrogate decision-maker is available or an advance directive exists, those guide decisions; if the patient later regains capacity, they can review treatments that were given.