Do NOT Perform Chest Compressions on a Convulsing Patient
A patient who is actively having a seizure is NOT in cardiac arrest and should NOT receive chest compressions. The key distinction is that seizure patients are typically breathing (even if abnormally) and have a pulse, whereas cardiac arrest patients are unresponsive with absent or only gasping respirations and no definite pulse 1.
How to Distinguish Seizure from Cardiac Arrest
The critical assessment takes less than 10 seconds:
Seizure characteristics:
- Active convulsive movements (rhythmic jerking)
- May have abnormal breathing but IS breathing
- Pulse is present (though may be rapid)
- Usually self-limited (1-2 minutes typically)
- Followed by postictal confusion
Cardiac arrest characteristics:
- Unresponsive with NO normal breathing (only gasping or absent)
- No definite pulse within 10 seconds
- No purposeful movement
- Requires immediate CPR 1
Proper Management of Seizures
During active convulsion 2:
- Stay with the patient
- Help them to the ground safely
- Clear the area of hazards
- Do NOT restrain them
- Do NOT put anything in their mouth
- Time the seizure duration
After seizure stops 2:
- Place in recovery position (on their side) ONLY after convulsions cease
- Monitor breathing and responsiveness
- Activate EMS if: first-time seizure, duration >5 minutes, multiple seizures without return to baseline, injury occurred, or no return to baseline within 5-10 minutes
Critical Pitfall: Mistaking Seizure for Cardiac Arrest
The 2020 AHA Guidelines explicitly address the risk of providing CPR to patients not in cardiac arrest. While the risk of injury from unnecessary compressions is relatively low (rib fractures 1.7%, no visceral injuries) 1, performing compressions on a seizing patient:
- Is unnecessary and potentially harmful
- Can cause shoulder dislocations during active convulsions 3
- May hinder recognition if the patient actually does arrest
- Provides no benefit since the patient has circulation
When Seizure Becomes Cardiac Arrest
If the patient becomes unresponsive AND stops breathing normally (or only gasps) AND has no definite pulse within 10 seconds, THEN immediately begin CPR 1. This represents a transition from seizure to cardiac arrest—a rare but critical scenario requiring immediate recognition and action.
The 2020 AHA Guidelines emphasize that healthcare providers should check for pulse for no more than 10 seconds, and if no definite pulse is felt, assume cardiac arrest and begin compressions 1. The emphasis is on "definite"—when in doubt with an unresponsive, non-breathing patient, start CPR. But an actively convulsing patient clearly has brain activity and circulation.