When must consent be obtained from the patient?

Consent must be obtained from the patient before preoperative medications are given because it is essential to ensure that the patient is fully informed and agrees to the planned procedure as well as any medications that may impact their health. Informed consent is a fundamental ethical and legal requirement in healthcare, emphasizing the patient's right to understand what the procedure involves, including potential risks and benefits. Obtaining consent prior to administering any medications ensures that the patient is aware of and agrees to the treatment, which aligns with the principles of autonomy and patient-centered care. It is a critical step in the patient safety and surgical process, as administering medications without consent could lead to legal and ethical repercussions.