As an EKG monitor tech, your job is to monitor the cardiac condition of a patient. In this role, you may also help maintain equipment, inform supervisors or nurses of any variances, measure rhythms and patterns in heartbeats, and review existing cardiac information. EKG monitor techs may work at any time, day or night, so the ability to be flexible with your schedule is essential to your success in this role. Fulfilling the responsibilities and duties of an EKG monitor tech requires meeting all qualifications to monitor cardiac activity, maintaining any necessary certification in areas like basic life support, and having manual dexterity for skills like using calipers and other measuring devices.