Nursing care
Cardiac Arrest Management: the nurse's role, start to finish
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Cardiac arrest management centres on high-quality chest compressions with minimal interruption, delivered before and above any drug in the algorithm. Nurses recognise arrest, call for help, start compressions immediately, and cycle through compressions, rhythm checks, and defibrillation while a code team arrives. Every pause in compressions, even for a pulse check or drug push, drops coronary perfusion pressure and worsens survival odds.
When it is done and why
Cardiac arrest management is initiated the moment a patient is found unresponsive, not breathing normally, and without a palpable pulse within 10 seconds of checking. It is not reserved for monitored patients; any nurse on any unit may be the first responder, and the decision to start is made on those three findings alone, not on waiting for a rhythm strip or a full set of vital signs.
The purpose of the response is to restore circulation and oxygen delivery to the brain and heart before irreversible injury occurs. Survival drops by roughly 7 to 10 percent for every minute defibrillation is delayed in a shockable rhythm, and brain injury begins within minutes of no flow. This is why the sequence prioritises compressions over every other action: compressions are what keep blood moving until a defibrillator or drug can do anything useful at all.
Preparing the patient
There is no time to prepare the patient in the way you would for a scheduled procedure. The first actions are positioning the patient supine on a firm surface, exposing the chest, and calling for the code team and defibrillator while beginning compressions. If the patient is in a bed with an air mattress, deflate it or use a backboard, since a soft surface absorbs compression force and reduces effectiveness.
Preparation instead means having equipment ready before an arrest happens: knowing the location of the crash cart and defibrillator on your unit, confirming it is stocked and the battery is charged, and knowing your role in the code team before you are ever called into one. Family members present at the bedside should be moved out of the immediate space but, where unit policy allows, offered the option to remain nearby with a staff member assigned to support them, since family presence during resuscitation is increasingly supported when it does not interfere with care.
The steps that matter for safety
Confirm the scene is safe, then confirm unresponsiveness and absent or abnormal breathing, then check for a pulse for no more than 10 seconds. If any of these is uncertain, treat it as arrest and start compressions rather than losing time confirming further.
Compression depth of at least 5 cm and rate of 100 to 120 per minute, with full chest recoil between compressions, are the numbers that separate effective CPR from ineffective CPR. Switch compressors every two minutes or sooner if fatigue sets in, since compression quality degrades well before the person doing them feels tired. Minimise interruptions to under 10 seconds for rhythm checks or defibrillation, and never stop compressions to secure an airway or gain IV access; those happen around ongoing compressions, not instead of them.
During the procedure — the nurse's role
In a code team, nursing roles typically include compressor, airway support, medication nurse, recorder, and code leader support, and the roles rotate as needed but should be assigned clearly at the start so no task is duplicated or missed. The compressor's only job is compressions, done to depth and rate, with a two-minute rotation regardless of how capable they feel.
The medication nurse prepares and pushes drugs on the leader's order, most commonly epinephrine 1 mg IV every 3 to 5 minutes and amiodarone or lidocaine for shockable rhythms refractory to defibrillation, while confirming each drug and dose aloud in closed-loop communication before administering it. The critical discipline here is that drugs are given without stopping compressions, and no one waits for a 'clean' moment to push medication. High-quality compressions with minimal interruption remain the single intervention that most influences outcome, and every other task in the room is organised around protecting that priority.
After: monitoring and complications
Once return of spontaneous circulation is achieved, the priority shifts to post-arrest care: continuous cardiac monitoring, frequent blood pressure checks, arterial blood gases, and titrating oxygen to avoid both hypoxia and hyperoxia. Targeted temperature management may be initiated per protocol to reduce neurological injury, and glucose is monitored closely since both hypo- and hyperglycaemia worsen outcomes in this window.
Watch for rib fractures and, less commonly, pneumothorax from compressions, arrhythmia recurrence, and evidence of aspiration if the airway was not secured promptly. Neurological status should be reassessed frequently in the first hours, since post-arrest patients are at high risk of a second deterioration, and any drop in blood pressure or new arrhythmia should prompt immediate reassessment rather than being attributed to 'just being post-code.'
Documentation and teaching
Documentation during a code is usually the recorder's job in real time: exact times of arrest recognition, each rhythm check, each shock, each drug and dose, and the time of ROSC. Accuracy here matters both for continuity of care and because the code record is reviewed afterward to identify what worked and what to improve, so approximate times written after the fact undermine that review.
After the event, debrief with the team on what went well and what to change, since structured post-code debriefing has been shown to improve future performance. Family teaching after a survived arrest should cover what happened in plain language, the likely need for further cardiac workup, and, if applicable, an ICD or medication changes, delivered without minimising the seriousness of what occurred but without overwhelming detail in the first conversation.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our cardiovascular practice questions are the closest set to what this page covers.
Common questions
How long should a pulse check take during cardiac arrest?
No more than 10 seconds. If you are not certain you feel a pulse within that window, treat it as pulseless and resume compressions immediately rather than continuing to search for one.
Why do compressions matter more than epinephrine?
Compressions are the only intervention maintaining blood flow to the brain and coronary arteries during arrest. Epinephrine and antiarrhythmics can improve the chance of a shockable rhythm converting, but they do nothing without ongoing perfusion, so interrupting compressions to give a drug undermines the drug's own effectiveness.
How often should compressors switch during a code?
Every two minutes, timed with rhythm checks, or sooner if the compressor is visibly fatiguing. Compression quality drops measurably before fatigue is subjectively felt, so rotating on schedule rather than waiting to be asked is the safer default.
What should a nurse do first on finding an unresponsive patient?
Confirm unresponsiveness, check for absent or abnormal breathing, call for help and the defibrillator, and check a pulse for no more than 10 seconds. If pulseless, start compressions immediately rather than waiting for the code team to arrive.
Should family be allowed to stay during resuscitation?
Where unit policy supports it, yes, with a dedicated staff member assigned to explain what is happening and support them. Evidence increasingly favours offering this option rather than routinely excluding family, though it should not compromise the team's ability to work.
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