A telemetry technician uses a special type of machine to monitor patients’ vital signs, such as heart rate and blood pressure, to test for cardiac issues. As a telemetry technician, your job duties involve connecting electrodes to specific points on a patient’s body to gain a readout on an electrocardiogram or EKG. You prepare the patient for the exam, take a reading, then transfer the test results to both the doctor and the patient. Additional responsibilities include speaking to patients and keeping them calm before and during the exam because it may be stressful for some people.