Which statement about DNR validity is true?

• A. It must be signed by the issuer and the physician executing it
• B. It must be signed by the nurse
• C. It must be signed by the administrator
• D. It must be notarized

Answer: (A)

DNR validity rests on both patient autonomy and medical authorization. The order must bear the signature of the person issuing it (the patient or a legally authorized surrogate) to show informed consent to forgo resuscitation. It also must be signed by the physician who will execute the order, providing formal medical authorization to implement it. This pairing ensures that the request comes from the patient or their surrogate and that a licensed clinician is on record as carrying out the directive. A nurse, administrator, or notary signature isn’t what makes the DNR valid, and notarization is not typically required. If either signature is missing, the DNR isn’t a valid medical order and may not be enforceable in an emergency.