For expressed consent, what must the patient be able to do?

For expressed consent, the patient must be able to make a rational decision. This means that the individual is capable of understanding the information provided about their treatment options and can evaluate the benefits and risks associated with those options. Rational decision-making also involves the ability to comprehend the consequences of consenting or refusing treatment. This capacity is essential in ensuring that the consent given is informed and valid, respecting the patient's autonomy.

While signing a document, asking questions, and making a payment may be related to the larger context of consent and treatment processes, they do not address the core requirement that the patient must be able to understand and make a decision about their care. Being able to make a rational decision ensures that the patient is fully engaged in their healthcare choices, ultimately leading to better outcomes and trust in the healthcare provider.