Final answer:
The patient themselves and the attending physician generally have the authority to revoke a DNR or POLST. The patient's family or a healthcare proxy may have input, but may not be able to revoke it on their own. Hospital administration typically does not have the authority to revoke a DNR or POLST.
Step-by-step explanation:
In the case of a DNR (Do Not Resuscitate) or POLST (Physician Orders for Life-Sustaining Treatment), the answer to who can revoke it depends on the specific circumstances and the laws of the jurisdiction. In general, the patient themselves can revoke a DNR or POLST at any time if they are still capable of making decisions. The attending physician may also have the authority to revoke a DNR or POLST if they determine that the patient's condition has changed or if it is no longer appropriate. The patient's family or a healthcare proxy may have input or influence in the decision-making process, but they may not have the authority to revoke a DNR or POLST on their own. Lastly, the hospital administration typically does not have the authority to revoke a DNR or POLST, but they may be involved in any legal or ethical considerations surrounding the decision. It's important to consult with a healthcare professional or legal expert in your specific jurisdiction to understand the exact rules and regulations that apply.