Final answer:
The ACLS protocol for monophasic defibrillation involves the use of a single electrical shock at an energy level of 150 to 200 joules to reset the heart's rhythm.
Step-by-step explanation:
The ACLS (Advanced Cardiac Life Support) protocol for monophasic defibrillation involves the use of a single electrical shock to reset the heart's rhythm. Monophasic defibrillators deliver energy in one direction, from one paddle to the other, through the patient's chest. The recommended energy level for monophasic defibrillation is typically between 150 to 200 joules for the initial shock. If the first shock is unsuccessful, higher energy levels may be used for subsequent shocks.
For example, if a monophasic defibrillator is used on a patient with cardiac arrest, the device will deliver a single electrical shock at an energy level of 200 joules to restore a normal sinus rhythm.