Which of the following is not a type of patient consent?

Conditional consent is not a recognized type of patient consent within the established categories of consent that are commonly used in medical and legal contexts. The main forms of consent include expressed consent, which is given verbally or in written form by a patient; implied consent, which is assumed based on a patient's actions or the circumstances; and informed consent, which involves providing the patient with comprehensive information about a treatment or procedure, allowing them to make an educated decision.

Each of the valid types of consent serves a specific purpose in ensuring that individuals understand their rights and the implications of their decisions regarding medical care. In contrast, conditional consent is not a standard classification and does not fit into the framework used to ensure proper patient rights and legal protection.