A girl is on the phone with her mom when her heart rate suddenly drops and she collapse.
Paramedics arrive and do an assessment–checking her airway, cutting off clothing and starting an IV. Her pulse is faint at first, but upon re-check, she is flatlined. The start CPR, then use defibrillation to finally revive her. At the hospital, she is weak but stable. They check her circulation and do a disability and brain evaluation. They leave her to rest.
Soon, she goes into arrest, her pulse racing, then flatlines. They quickly start CPR and switch to defibrillation then back to CPR over and over until they finally revive her. The do a thorough check, then leave her to rest and hopefully make a full recover.
A girl is doing fine, recovering from an earlier cardiac arrest. Suddenly, she goes into arrest and the trauma team comes in to work on her. Using CPR and Defibrillation, then bring her back successfully.