Final answer:
A likely candidate for an implantable cardioverter defibrillator (ICD) is someone with a history of life-threatening abnormal heart rhythms or other risk factors such as a weakened heart muscle.
Step-by-step explanation:
An likely candidate for implantation of an implantable cardioverter defibrillator (ICD) would be someone who has a history of life-threatening abnormal heart rhythms, such as ventricular tachycardia or ventricular fibrillation.
Other factors that may make someone a candidate for an ICD include a weakened heart muscle, previous heart attack, or certain genetic conditions that increase the risk of arrhythmias.
The decision to implant an ICD is typically made by a cardiologist after a thorough evaluation of the patient's medical history, symptoms, and diagnostic tests.