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 Pulmonary/Sleep Program Offerings


These are tests to diagnose lung/respiratory disorders and measures lung function.

There are a number of diagnostic tests that are done including:

  • Pulmonary function testing (PFT) - diagnostic and therapeutic tests that help identify various aspects of lung disease.
  • Methacholine challenge testing (MCT) - evaluates Airway Hyper Responsiveness (AHR) to help identify the occurrence of asthma
  • Home oxygen assessments - This test is required in order to qualify for oxygen under the Home Oxygen Program. It includes monitoring oxygen levels on room air, a possible arterial blood gas (if oxygen levels low), as well as the possibility of a walking oxygen level test.
  • Spirometry and oximetry testing - measures lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.
  • Asthma exercise testing - also known as exercise-induced asthma (EIA) testing. It includes a combination of several breathing, exercise and cardiology tests which show how the heart and lungs work together during exercise.

Arterial blood gases (ABG) - This test requires collecting a small amount of blood from an artery which determines the level of oxygen, carbon dioxide or pH balance of your blood.


Credit Valley Hospital
2200 Eglinton Ave. W.
Mississauga, ON L5M 2N1

Cardiopulmonary Department 3rd Floor

Queensway Health Centre
150 Sherway Dr.
Etobicoke, ON M9C 1A5

Medical Clinics 2nd Floor

Mississauga Hospital
100 Queensway W.
Mississauga, ON L5B 1B8

Ground floor, across from elevator A

Contact Information

Credit Valley Hospital

Queensway Health Centre

Mississauga Hospital


Referral by physician is required..

How to Prepare for Your Appointment:

Pulmonary Function Testing
  • The test takes approximately 45 minutes to complete. No smoking for at least 1 hour prior to the test. Avoid consuming alcohol within 4 hours prior to the test. No vigorous exercise within 30 minutes of testing. Do not eat a large meal within 1 hour of testing. Avoid wearing clothing that substantially restricts full chest and abdominal expansion. The test should not be done if you have had recent eye surgery (cataract etc.). Please schedule the test at least 6 weeks after surgery. The test should be rescheduled if you have a common cold within the last week.
Methacholine challenge Testing:
  • The test takes approximately 45 minutes to complete. The test cannot be done if you are on a Beta-blocker and should be stopped 48 hours prior to the test if safe to do so, under the direction of the prescribing doctor.
  • The attached medications should be stopped before the test.
  • Test will NOT be done if the attached medications are not stopped with in the allocated time frames. Please consult your doctor prior to stopping ANY beta blockER or leukotriene modifier medications listed below.
  • No coffee, tea, cola or chocolate on the day of the test.

What to Bring:

  • Please bring your Health card (OHIP Card). If you do not have an OHIP card, please bring another form of government-issued photo ID (such as a driver’s license, passport, or other provincial health card).
  • If you were given a medical information package by your doctor bring that with you.
  • Bring your current Medications or a List of All of your Current Medications
  • List of Medication Template​
  • Ask your Pharmacist for a List of your current Medications