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7 Cards in this Set

  • Front
  • Back
The SA node discharges impulses more slowly than normal and conduction continues in a normal fashion through the rest of the heart.
Premature Ventricular Contractions (PVCs)
An ectopic foci in the ventricles discharges an impulse before the SA node.
Types of Premature Ventricular Contractions
- Unifocal PVC – Better to have since there is only one site that is irritated in the ventricle

- Frequent PVCs

- Several PVCs in a row

- Treatment for PVCs
Ventricular Tachycardia
An ectopic foci in the ventricles becomes the pacemaker of the heart.
Ventricular Tachycardia
Treatment for VT with a pulse
Treatment of VF or pulseless VT
- Check for responsiveness, activate the EMS system (call a code), call for a defibrillator

- Open the airway, check for breathing, begin ventilations, check for pulse, begin compressions (ABC plus D)

- As soon as a defibrillator is available-defibrillate

- Check for a pulse

- If the pulse is absent and there is no change in rhythm-defibrillate again

- Check for pulse

- If pulse is absent and there is no rhythm change-defibrillate

- Start an IV and begin to administer meds (CPR should be continued)

- Give epinephrine IV push (may give every 3-5 minutes)

- Defibrillate

- If patient remains in rhythm, administer Amiodarone IV followed OR
No electrical activity is happening. No pacemaker is firing
Pulseless Electrical Activity (PEA)
- The patient has electrical activity on the monitor but no heartbeat
Treatment for PEA and asystole

- Check for responsiveness, activate EMS (call a code), call for defibrillator

- Begin CPR

- Start and IV and administer Epinephrine IVP (Epinephrine may be repeated every 3-5 minutes)

- Atropine IV

- Consider causes of PEA such as hypovolemia, hypoxia, acidosis, potassium imblances, hypothermia, overdose, cardiac tamponade, tension pneumothorax, acute coronary syndrome, PE