Cardiac Testing

The NSMC Heart Center offers a variety of cardiac exams which provide cardiologists and cardiac surgeons with a detailed profile of your heart’s function. All cardiac tests and procedures are performed by physicians and clinically-trained technicians in our state-of the art cardiac facilities. All cardiac evaluations require a written requisition by a physician.
Man receiving cardiac evaluation

Scheduling a Test


If your physician has written a requisition for you to have cardiac testing, you will be asked to call Central Scheduling in order to book the test. Please call 978.573.4444 to schedule the appointment.


Cardiac ultrasound

A cardiac ultrasound test determines the size and function of your heart muscle and the valves. What to expect and how to prepare for this test.


Holter monitor/Event monitor

These tests indicate any irregular rhythms in your heart. A holter monitor is a continuous recording of your heart’s rhythm during 24 hours of normal activity and rest. An event monitor is similar but worn for a longer period of time.  What to expect and how to prepare for this test.


Stress test

Stress tests measure your heart’s reaction to increased demand for oxygen. The tests record the electrical activity of the heart during walking and running. What to expect and how to prepare for this test.


Tilt table

This test is generally booked by the Catheterization Lab. 

The tilt table test helps determine why you may be experiences fainting spells. It produces syncope (a fainting spell) under controlled conditions, which enables your physician to diagnose whether you have a condition called vasovagal syncope. What to expect and how to prepare for this test.