DNR Full Form in Medical Terms: Meaning, Uses & FAQs
A plain-language guide to what DNR stands for, what a DNR order actually does, and how it differs from similar medical directives.
Key Takeaways
- DNR full form: “Do Not Resuscitate.” It’s a medical order, not a general “do not treat” instruction.
- A DNR only affects CPR-related efforts — chest compressions, defibrillation, and intubation. Everything else, including pain relief and medication, continues as normal.
- Related terms — DNAR and AND — mean essentially the same thing, worded differently.
- A doctor writes the order, but it’s based on the patient’s (or their legal representative’s) wishes.
What Does DNR Stand For in Medical Terms?
DNR stands for “Do Not Resuscitate.” In a medical setting, a DNR order is an instruction, signed by a physician, telling the care team not to attempt cardiopulmonary resuscitation (CPR) if a patient’s heart or breathing stops. It instructs providers not to perform CPR if a patient’s breathing or heartbeat stops.
It’s one of the most misunderstood terms in healthcare. People often assume it means “stop all treatment,” but that’s not accurate — a DNR is narrowly focused on one specific moment: cardiac or respiratory arrest.
What Is a DNR Order, Exactly?
A DNR is a legal, medical document that becomes part of a patient’s chart. It tells doctors and nurses not to try to restart the heart or breathing if either stops, without meaning the person will stop receiving care altogether.
DNR orders usually come up in specific situations, most often when a patient:
- Has a serious or advancing illness that isn’t expected to improve
- Is receiving hospice or end-of-life care and wants to avoid aggressive intervention
- Has discussed CPR’s realistic outcomes with their doctor and decided against it
A doctor typically writes the order only after a conversation with the patient — or, if the patient can’t communicate, with their designated decision-maker or family.
Key Takeaways
- DNR = “Do Not Resuscitate,” a medical order about CPR specifically — not a stop on all treatment.
- DNAR and AND are alternate names for the same decision.
- Only CPR-related efforts (compressions, shocks, resuscitation intubation) are withheld; comfort care and other treatments continue.
- The order can be requested by the patient or, when they can’t communicate, by a legal proxy — and it can be changed at any time.
What a DNR Order Covers — and What It Doesn’t
This is where most confusion happens. A DNR is deliberately specific.
A DNR order stops:
- Chest compressions
- Defibrillation (electric shock to restart the heart)
- Intubation and mechanical ventilation tied to a resuscitation attempt
- Emergency resuscitation medications
A DNR order does not stop:
- Pain and comfort management
- Antibiotics, IV fluids, or nutrition
- Oxygen support (outside a resuscitation attempt)
- Any other planned medical or surgical treatment
A DNR order does not mean “do not treat” — it means only that CPR will not be attempted, while other treatments that may prolong life can still be provided. Comfort-focused care continues regardless of DNR status.
DNR vs. DNAR vs. AND: What’s the Difference?
You’ll sometimes see three different acronyms used almost interchangeably. They describe the same underlying decision, just with different wording favored by different hospitals or countries.
| Term | Full Form | Notes |
|---|---|---|
| DNR | Do Not Resuscitate | The original and most widely used term in the US |
| DNAR | Do Not Attempt Resuscitation | Preferred in the UK; emphasizes that resuscitation is an attempt, not guaranteed to work |
| AND | Allow Natural Death | A newer, more patient-centered phrasing some US hospitals now use |
All three lead to the same clinical outcome: CPR is withheld if the heart or breathing stops. For deeper context on how hospitals classify treatment levels beyond CPR, see our code status explained guide.
Who Can Request or Authorize a DNR Order?
- The patient themselves, if they’re mentally competent to make the decision
- A legal health care proxy or agent, if the patient can’t communicate their wishes
- A family member, only in specific circumstances and only when no one else has legal authority to decide
If a patient hasn’t named someone to speak for them, a family member can sometimes agree to a DNR order on their behalf, but only when the patient is unable to make their own medical decisions. Importantly, a patient can change their mind and request CPR at any point — a DNR is never permanent or irreversible. If you’re weighing this decision for yourself or a relative, our advance directives guide walks through the broader planning process.
DNR vs. Living Will
A DNR and a living will are often confused, but they’re not the same document:
- A DNR is a specific medical order about one thing: whether to attempt CPR.
- A living will is a broader legal document covering a range of future medical decisions — ventilator use, feeding tubes, and other life-sustaining treatments — in case the person becomes unable to communicate.
Many patients have both. Read more in our living will vs. power of attorney comparison if you’re setting up either document.
FAQs
Is DNR the same as DNAR?
Yes. DNR (“Do Not Resuscitate”) and DNAR (“Do Not Attempt Resuscitation”) describe the same medical decision. DNAR is simply more common in the UK and is considered a slightly more accurate phrasing, since it acknowledges CPR isn’t guaranteed to work.
Does a DNR mean no medical treatment at all?
No. A DNR only applies to CPR efforts during cardiac or respiratory arrest. Pain relief, medications, nutrition, and other treatments continue as normal.
Who can request a DNR order?
A competent patient can request one directly. If the patient can’t communicate, a legal health care proxy or, in some cases, a close family member can authorize it on their behalf.
Can a DNR order be canceled?
Yes. A patient (or their legal decision-maker) can cancel or change a DNR order at any time by telling their care team.
What’s the difference between a DNR and a living will?
A DNR covers only CPR decisions. A living will is broader and can address ventilators, feeding tubes, and other end-of-life treatment preferences.
Does having a DNR affect other hospital care, like surgery?
Not directly. Many patients with a DNR still receive surgery, diagnostic tests, and ongoing treatment — the order only activates during an actual cardiac or respiratory arrest.
