What is the appropriate method for obtaining signed consent if a patient is unable to read?

The most appropriate method for obtaining signed consent from a patient who is unable to read is for the patient to make an "X," which must be verified by a witness. This approach ensures that the patient's intent to give consent is documented in a way that complies with legal and ethical standards.

When a patient is unable to read, it is crucial to establish their understanding of what they are consenting to. Having the patient mark an "X" signifies their agreement, while the witness confirms that the procedure was explained to the patient, thereby validating the consent process. This method is designed to protect both the patient’s rights and the healthcare provider from potential legal issues that could arise from improperly obtained consent.

Other methods presented, such as taking a verbal confirmation, may lack the necessary documentation and verification of the patient's understanding and intent. Relying on a family member to sign could introduce conflicts of interest or a lack of true informed consent from the patient themselves. Having a nurse sign on behalf of the patient does not uphold the same level of patient autonomy and consent standards that are required in medical practice. Therefore, the practice of obtaining an "X" with a witness is both a practical and legally sound choice in this situation.