Adult Cardiac Arrest – VF/VT
ADU-05
Diagnosis
Shockable pulseless cardiac arrest
Call for help and a code cart
- Ask: "Who will be the crisis manager?"
- Say: "Shock patient as soon as the defibrillator arrives"
- Crisis manager assigns roles (see ROLE assignments box)
Put backboard under patient
- Turn supine as soon as possible, but do not delay the start of compressions
Turn FiO2 to 100%; turn off volatile anesthetics
Start CPR - defibrillation - assessment cycle
- Perform high-quality CPR
- "Hard and fast" about 100 – 120 compressions/min to depth ≥ 2 inches
- Ensure full chest recoil with minimal interruptions
- 10 breaths/minute; do not over-ventilate
- Bag-mask ventilation until able to place endotracheal tube
- Defibrillate
- Shock at highest setting
- Resume CPR immediately after shock
- Give EPINEPHrine
- Repeat EPINEPHrine every 3 – 5 minutes
- Give antiarrhythmics for refractory VF/VT after 2 shocks
- Assess every 2 minutes
- Change CPR compression provider
- Check ETCO2
- If: <10 mm Hg, evaluate CPR technique
- If: Sudden increase to >40 mm Hg, may indicate return of spontaneous circulation
- Treat reversible causes, consider reading aloud differential diagnoses
- Check rhythm; if rhythm organized, check pulse
- If: VF/VT continues: Resume CPR cycles (restart Step 4)
- If: Asystole/PEA: go to ADU-04
- Perform high-quality CPR
Consider ECMO
Drugs
| EPINEPHrine | 1 mg IV, repeat every 3 – 5 minutes |
|---|---|
| Amiodarone | 1st dose: 300 mg IV |
| Amiodarone | 2nd dose: 150 mg IV |
| Lidocaine | 1st dose: 1 - 1.5 mg/kg |
| Lidocaine | 2nd dose: 0.5 - 0.75 mg/kg |
| Magnesium | 2 - 4 g IV for Torsades de Pointes |
DEFIBRILLATOR instructions
1. Place electrodes on chest
2. Turn defibrillator ON, set to DEFIB mode, and set ENERGY LEVEL. Biphasic: Follow manufacturer recommendation. (If unknown, use highest setting.) Monophasic: 360J
3. Deliver shock: press CHARGE, then press SHOCK
DIFFERENTIAL diagnosis
- Hypovolemia
- Hyper- or hypokalemia
- Tamponade
- Tension pneumothorax
- Auto-PEEP
- Embolism
- High neuraxial
- Intra-abdominal hypertension
DIFFERENTIAL diagnosis
- Myocardial ischemia (ADU-14)
- Acidosis
- Hypoxia (ADU-11)
- Hypoglycemia
- LAST (ADU-12)
ROLE assignments
- Chest compressions
- Airway
- Vascular access
- Documentation
ROLE assignments
- Code cart
- Time keeping
- Checklist reader