Diagnostic services

Cardiac & vascular diagnostic services.

Whitby Cardiovascular Institute provides referral-based diagnostic services to help physicians assess heart rhythm, heart function, exercise response, vascular concerns, and cardiovascular risk factors.

Heart Structure & Function

Echocardiography

An echocardiogram is an ultrasound examination of the heart that helps assess heart structure and function.

What to expect
A technologist performs the scan while you lie comfortably. Most exams take 30–45 minutes.
Referral requiredAsk about a referral
Heart Rhythm

Electrocardiogram (ECG / EKG)

An ECG records the electrical activity of the heart and may help physicians assess rhythm, rate, and other cardiac patterns.

What to expect
Small electrodes are placed on the chest; the recording itself takes only a few minutes.
Referral requiredAsk about a referral
Heart Rhythm

Holter Monitor

A Holter monitor records heart rhythm over an extended period while the patient goes about normal daily activities.

What to expect
You wear a small recorder for a defined period and return it to the clinic for analysis.
Referral requiredAsk about a referral
Confirm details before publishing
Heart Rhythm

Loop Recorder

A loop recorder is an extended monitoring option used to record intermittent heart rhythm activity over a longer period.

What to expect
Worn for an extended monitoring period as directed by the clinic.
Referral requiredAsk about a referral
Exercise & Cardio-Pulmonary

Cardiac / Cardiopulmonary Exercise Stress Testing

Exercise testing helps assess how the heart and cardio-pulmonary system respond during physical activity under supervised conditions.

What to expect
You walk on a treadmill while monitored by clinical staff. Plan to be at the clinic 60–90 minutes.
Preparation
Wear comfortable clothing and walking shoes. Follow any medication or fasting instructions from the clinic.
Referral requiredAsk about a referral
Vascular Assessment

Vascular Investigations

Vascular assessments may include carotid, peripheral arterial, venous duplex, and Doppler-based investigations when ordered by a referring physician.

What to expect
Specific tests vary; most are non-invasive ultrasound exams.
Referral requiredAsk about a referral
Vascular Assessment

Peripheral Doppler Testing

Peripheral Doppler testing helps assess blood flow in peripheral vessels.

What to expect
Non-invasive ultrasound exam, generally 30–45 minutes.
Referral requiredAsk about a referral
Vascular Assessment

Venous Colour Doppler

Venous Doppler testing may be used to evaluate venous blood flow and support assessment for concerns such as DVT when clinically indicated by referral.

What to expect
A technologist performs the scan while you are positioned comfortably.
Referral requiredAsk about a referral
Heart Rhythm

Arrhythmia Clinic

Assessment and monitoring support for patients with suspected or known heart rhythm concerns.

What to expect
Includes clinical assessment and may involve additional rhythm monitoring.
Referral requiredAsk about a referral
Prevention & Risk Factors

Hypertension & Lipid Clinic

Risk-factor focused care related to blood pressure, cholesterol, and prevention-oriented cardiovascular management.

What to expect
Clinical assessment focused on cardiovascular risk reduction.
Referral requiredAsk about a referral
Contact the clinic

We're here to help.

Call to reach the clinic, request directions, or learn how physician referrals work.