Overnight Oximetry Test

Oximetry is a test that measures your oxygen level and heart rate. This is part of the Obstructive Sleep Apnea (OSA) Screening process. When used overnight, a continuous measurement can be graphed. The patterns that are produced can assist in the diagnosing of Sleep Apnea.
Through this quick and easy test, a clinical diagnosis can be made by your physician. To be tested, Clinique Inhalo requires a referral from your physician that can be send by Email.

Overnight pulse oximetry (OPO) has proven to be an effective and beneficial technique to determine the cardiorespiratory status of patients in both the inpatient and outpatient settings. It is a cheap, safe, reliable, simple, and accurate method of patient monitoring as compared to the expensive and labor-intensive method of multichannel polysomnography for detecting sleep-disordered breathing. It provides accurate information about patient’s oxygenation status and also helps in monitoring the response to continuous positive airway pressure and in the surgical treatment of obstructive sleep apnea (OSA).

Nocturnal pulse oximetry is a low-cost, safe, simple, convenient, noninvasive, and effective screening method for SDB in adults. It is readily and easily accessible with no risks or side effects to the patients and has decreased the waiting time of OSA diagnosis.
Apnea and hypopnea cause an arousal from sleep causing sympathetic activation, sleep disruption, snoring, fatigue, nocturia, morning headaches, and excessive daytime sleepiness. SDB leads to increased risk of motor-vehicle crashes. Several studies have shown that sleep apnea is associated with hypertension, stroke, heart failure, obesity, metabolic syndrome, diabetes, neurocognitive deficits, gastroesophageal reflux disease, and erectile dysfunction. Such health problems can reduce the quality of life. Chiang et al. have found OSA prevalence to be 60.9% among adult primary care population who are at risk of OSA. Hence, due to these effects of OSA and its increasing prevalence, quick and accurate screening, diagnosis and treatment becomes very important.
Several studies have been done to evaluate the validity and usefulness of OPO in the screening of OSA. Hang et al. studied a total of 616 patients with nocturnal oximetry and PSG study and showed that OPO is a satisfactory diagnostic tool for patients with severe OSA.

Steps to be done


If you’re uncertain if you should schedule an appointment with your physician regarding Sleep Apnea, you can start by completing our FREE online sleep assessment to determine if you could be in need of Overnight Pulse Oximetry(OPO) or Home Sleep Test (HST).

Online Sleep Assessment

Visit Your Physician

If your assessment shows signs of sleep-disordered breathing or another sleep disorder, bring your results with when visiting your personal physician and discuss options of an overnight pulse oximetry test or Home Sleep Test (HST). If they believe you may be in need of it, they will order the test for you.

Test to be Done

Once the test has been ordered by your physician, Call Clinique Inhalo at 4389261886 to take an appointment to do the test.

Review Results with Sleep specialist

The Overnight Pulse Oximetry (OPO)Test report or Home Sleep Test (HST) report will be send directly to your physician for review. Your physician will follow up with you regarding the results and what is the next step to be done. Usually your doctor will assess your test results and your symptoms and decides if you need a treatment for sleep apnea.

Sleep Apnea Treatment Options

  • Positive Airway Pressure Devices
  • Oral Appliances
  • Neuro-stimulation Therapy
  • Positional Therapy
  • Surgery

Most common and most efficient treatment is the Positive Airway Pressure Devices CPAP.

We can provide you with these devices with a follow up your treatment and answering all your questions.

Online Sleep Assessment

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