The described dog was successfully resuscitated by following recommendations outlined in the 2012 Reassessment Campaign on Veterinary Resuscitation (RECOVER) clinical guidelines. 2 These guidelines were developed after an extensive systematic literature review and evaluation, and their CPR algorithm groups CPR interventions into basic and advanced life support. 2,3 While basic life support interventions are recommended for all cardiopulmonary arrest patients, advanced life support drug and electrical therapies are informed by cardiac arrest rhythm diagnoses during patient reevaluations. 2 For animals with a documented nonshockable cardiac arrest rhythm, such as asystole in the described case, the administration of epinephrine 0.01 mg/kg IV every 4 minutes is currently recommended. 2 The patient outcome benefits of adhering to CPR guideline recommendations are well established in human resuscitative sciences. 4,5 Given recent similar evidence that demonstrates benefits of a RECOVER-based approach to CPR in dogs, the adherence to RECOVER guideline recommendations during clinical CPR efforts is standard practice at the reporting institution. 6 Veterinary CPR guidelines are not alone in recommending the administration of epinephrine to patients with nonshockable cardiac arrest rhythms. In 2019, the International Liaison Committee on Resuscitation conducted a systematic reassessment of epinephrine use during CPR. Review of the available literature culminated in the recommendation to administer epinephrine to patients with nonshockable cardiac arrest rhythms as soon as feasible during CPR; a recommendation that has since been maintained in guideline updates. 7,8 This recommendation is largely informed by 2 randomized controlled trials that found increased rates of return of spontaneous circulation (ROSC) and survival to hospital discharge in out-of-hospital cardiac arrest patients that were administered epinephrine versus saline placebo. 9,10 Although less strongly supported by the literature than epinephrine administration, atropine administration might be beneficial if increased parasympathetic tone or asphyxiation could have contributed to cardiopulmonary arrest. 2,11 Considering the case referral for uncontrolled and prolonged status epilepticus, a concern for intracranial hypertension, brain herniation, and increased parasympathetic tone was shared in the described patient.The authors agree with Mr. Rottenberg that high-quality basic life support measures represent the most important aspects of CPR, with-