What is a Holter monitor and how does it work?
A Holter monitor is an EKG recording done over a period of 24 or more hours. Three electrodes are attached to the patient’s chest and connected to a small portable EKG recorder by lead wires. The patient goes about his/her usual daily activities (except for activities such as taking a shower, swimming, or any activity causing an excessive amount of sweating which would cause the electrodes to become loose or fall off) during this procedure.