Also found in: Medical, Acronyms.
An initialism of "do not attempt to resuscitate," a medical order meaning do not use CPR to preserve brain function or restore a normal heartbeat. Used especially in reference to end-of-life care. After consulting with his doctor, my grandfather decided to sign a DNAR order. There is a DNAR form in place, but the hospital still has the authority to intubate the patient.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.