St. Alphonsus Medical Center - Ontario
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Respiratory Care

Cardiology Department

Inpatient and outpatient cardiology and pulmonology services for diagnostic testing includes one of the first digital echocardiographic services in the Treasure Valley, digital Holter monitoring, cardiac stress testing, electrocardiography, electroencephalograph and pulmonary function testing.

Procedure Descriptions

  • Cardiac stress test: An exercise stress test is a general screening tool to test the effect of exercise on your heart. The test gives a general sense of how healthy your heart is.
  • Echocardiogram: A test which uses sound waves to create a moving picture of the heart. The picture is much more detailed than an x-ray image and involves no radiation exposure.
  • Electroencephalogram (EEG): A test to detect abnormalities in the electrical activity of the brain.
  • Holter monitoring: Provides a continuous recording of heart rhythm during normal activity (see also ECG). The monitor is usually worn for 24 hours to obtain a recording of a complete day.
  • Pulmonary function tests: A broad range of tests which measure how well the lungs take in and exhale air and how efficiently they transfer oxygen into the blood. Spirometry measures how well the lungs exhale. The information gathered during this test is useful in diagnosing certain types of lung disorders, but is most useful when assessing for obstructive lung diseases (especially asthma and chronic obstructive pulmonary disease, or COPD).
  • Lung volume measurement: Permits the detection of restrictive lung diseases. In this set of diseases, a person cannot inhale a normal volume of air. Restrictive lung diseases may be caused by inflammation or scarring of the lung tissue (interstitial lung disease) or by abnormalities of the muscles or skeleton of the chest wall. Testing the diffusion capacity (also called the DLCO) permits an estimate of how efficiently the lungs are able to transfer oxygen from the air into the bloodstream.

Clinical Respiratory Care Department

Inpatient and outpatient services for respiratory disorders and diseases and diagnostic bronchoscopy. Educational offerings include the Better Breather’s Club, a free monthly support group for people with chronic obstructive pulmonary disease.

Sleep Disorders Center

Outpatient services sleep lab that includes Polysomnography CPAP and BiPAP titration and MSLT studies. Educational offerings include the “AWAKE” program, a free monthly support group for people requiring CPAP or BiPAP therapy.

Learn more about the Saint Alphonsus Medical Center — Ontario Sleep Disorders Center.

Contact Us

Cardiology: 541-881-7170
Sleep Disorders Center: 541-881-7477
Clinical Respiratory Care: 541-881-7215



Saint Alphonsus Medical Center - Ontario  |  351 S.W. 9th Street  |  Ontario, Oregon 97914  |  541-881-7000

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