Similar to cardiac arrest, rearrest is treated with both cardiopulmonary resuscitation and defibrillation. The goal of treatment is to reestablish a self perfusing heart through correction of the electrical activity within the heart. CPR entails chest compressions along with rescue breaths, while defibrillation involves a biphasic shock across the chest with the purpose of restarting the electrical activity of the heart.

Anti-arrythmic drugs are commonly given during the ROSC phase. These drugs may include lidocaine and amiodarone.

Current research seeks to predict the event of rearrest after patients have already achieved ROSC. Biosignals, such as electrocardiogram (ECG), have the potential to predict the onset of rearrest and are currently being investigated to preemptively warn health care providers that rearrest could be imminent.

A stronger pulse detector would also contribute to lowering the rate of rearrest. If the resuscitator could accurately know when the patient has achieved ROSC, there would be less instances of chest compressions being provided when a native pulse is present.