1 877-263-6063

1405 St-Maurice Trois-Rivières, Québec G8V 2N1


General sleep apnea

  • Will my blood pressure improve after I start the treatment?

    It is possible, but you should never stop using your medication without first consulting your doctor.

  • Will CPAP treatment help my diabetes?

    In some cases, it can help patients better manage their diabetes and limit the need for medication.

  • Will I lose weight if I follow this treatment?

    The CPP treatment can help you lose weight by regulating your metabolism during the night. You should also feel less tired and thus be motivated to get back to your daily activities. However, permanent weight loss only comes with significant healthy lifestyle changes.

  • Can I use my oxygen concentrator with my CPAP device?

    Yes, oxygen can be administered directly to the mask. Make sure to turn off your source of oxygen before turning the device off to avoid oxygen accumulation in the CPAP machine.

  • Can sleep apnea be cured?

    There is currently no cure for OSA, but CPP treatments can correct abnormal respiratory issues and help you regain your vitality.

  • How long after starting treatment will I notice an improvement?

    Some people notice an improvement immediately after starting treatment while others need a little more time before experiencing the full benefits.

  • How often should I use the device?

    You should use your device every night while you sleep. If not, symptoms such as snoring, sleep apnea, and daytime drowsiness will return.

  • Will the pressure on my device ever need changing?

    The pressure is regulated according to your needs. However, the pressure level may need to be adjusted in certain cases, such as significant changes in weight.

Risk Factors

  • Can the medication I'm taking increase my obstructive sleep apnea?

    Certain medications can increase muscular relaxation during sleep and others can alter breathing patterns.

  • Is alcohol causing my sleep apnea?

    Alcohol is a muscle relaxant that can cause the tongue, soft palate, and jaw and neck muscles to collapse, leading to an increase in the frequency of obstruction during the night.

  • I am a truck driver. Am I more susceptible to sleep apnea?

    28% of truck drivers suffer from sleep apnea compared with about 5 to 10% of the general population.

  • Is OSAS hereditary?

    Some families share certain physical characteristics, such as a small neck, large tongue, or weak soft palate and jaw muscles, which can contribute to obstruction of the airways during sleep.

Screening test and diagnosis

  • How long will it take to get an appointment?

    It normally takes about 2 to 3 business days.

  • How long will it take to get my results?

    The results of your test will be sent directly to your attending physician within 20 business days following the night of the test.

  • Do I need a prescription for a diagnostic sleep test?

    Yes, according to article 136 of the regulations of the Public Health Protection Act, your attending physician must prescribe the test.

  • Will I be reimbursed by my health insurance?

    Most grouphealth insurance plans will reimburse the cost of such tests. You should check with your insurance provider as coverage varies from plan to plan.

  • Can Prévimed help me determine if I suffer from sleep apnea?

    Yes, we offer an online screening test. We can guide you through the various steps of the diagnostic process and, if necessary, your treatment process.

Treatment issues

  • The tubing bothers me. Do you have any suggestions?

    You can place the tubing over your head or over the headboard. You might also want to consider a hose holder that supports the weight of the tubing and positions it so that the mask does not move during the night.

  • Will the sound of the machine disturb my partner during the night?

    The CPAP unit is probably quieter than your snoring! The new machines are essentially silent and rarely cause an issue. If the noise is caused by the flow of air delivered through the mask, make sure the mask is well positioned on your face, properly attached, and that the vents are not blocked.

  • Why does it feel like I have to force myself to exhale during  treatment?

    When first beginning treatment, most people feel they have to push against the flow of air as they exhale. It takes a little time to get used to. For those who find it hard to adapt, most devices come with a ramp feature that allows you to start with low air pressure, followed by an automatic, gradual increase to the prescribed pressure settings as you fall asleep. You might also want to consider a self-adjusting positive pressure device.

  • I notice air leakage during treatment. How can I fix this?

    Adjusting the straps sometimes resolves the issue. If you sleep with your mouth open, however, you should contact your respiratory therapist who will decide if you need a chin strap or a facial mask.

  • Will the treatment cause headaches or ear problems?

    Some patients develop headaches or experience pain or pressure in their ears if they also suffer from allergic sinus congestion. Congestion can block the ear canal and the change in pressure can cause pain when air is trapped. This is a temporary condition.

  • How long does it take to get used to CPP treatment and until I start seeing results?

    It takes most people 2 to 3 weeks to get used to the treatment. The adaptation period might be longer if you are very sensitive to the pressure of the mask on your face.

  • I have sores and a rash on my face. Is that normal?

    The mask is not supposed to hurt. Slight redness on the face is normal, but if it persists and becomes painful, it is a sign that the mask is either not properly fitted to your face, too tight, or the wrong size.


  • Why does condensation form in the mask and tubing?

    Either the humidity level on your device is too high, or the room temperature is too cold. Condensation forms on the mask or tubing when there is a difference in temperature between the ambient air and the air in the tubing. To prevent condensation, lower the humidity level or use a thermal tube cover.

  • What can I do about nose irritation caused by air circulation?

    A constant flow of cold, dry, high-pressure air during the night can lead to sneezing, runny nose, and irritation inside the nasal cavity. If, after a few days, the problem persists, your best option is to use a humidifier.

  • The air I breathe through the mask is too hot. Is there anything I can do?

    You can lower the temperature of the humidifier, being careful, however, not to compromise the proper humidification of your airways.

  • Should I use distilled or demineralized water to fill the reservoir?

    Using distilled water will reduce mineral deposits and thus maximize the life of the reservoir. More importantly, it reduces irritation of the airways.

  • The air I breathe through the mask is too cold. Is there anything I can do?

    Increasing the temperature on your humidifier during dry periods (especially in winter) will help prevent dryness in the nose, mouth, or throat.


  • Can I continue treatment if I have trouble breathing through the nose, or if I have a cold?

    You might have problems using a CPAP machine if you suffer from allergies, sinus problems, or if you have a cold. A facial mask that covers the nose and mouth is a good solution because it allows you to continue treatment even if you are breathing through your mouth. It is also important to maintain the correct level of humidity. If the problem is caused by serious allergies, you should mention it to your doctor, who may prescribe a nasal spray.

  • I sleep with my mouth open. Is this a problem?

    Your mouth must stay closed while you sleep to prevent air from escaping the mask. Using a mask that covers both the mouth and nose will ensure effective treatment. If you are having trouble adjusting to a face mask, try using a chinstrap instead.

  • Why is my mask causing skin irritation?

    The masks are made of silicone, a hypoallergenic material. Any irritation is usually caused by the straps (too tight or too loose), a poorly fitting mask (wrong size or style for the patient) or mask deterioration (dirt build-up).

  • My mask is uncomfortable. Is this normal?

    This problem occurs when the strap is too tight, or the mask is poorly fitted. A mask should sit comfortably on the face, but also be tight enough to prevent air from escaping. There are many types and styles of masks in all different sizes that can be easily adapted to your face.


  • Can I take my device with me when I go camping?

    When you go camping, you can power your device with an adapter and a battery for up to 20 hours without using the humidifier. If you use the humidifier, however, battery life will be reduced by about half.

  • Do I need to take my device with me if I need hospitalization?

    Interrupting your treatment might prolong your recovery, and your general state of health can deteriorate. If you are scheduled for surgery, it is crucial that you inform the hospital staff that you have sleep apnea and are being treated with CPAP. We recommend you bring your device and mask with you, as the hospital might not be able to provide you with the same type of machine or mask as yours.

  • I’m going abroad. Will I be able to use my device in other countries?

    Most devices can be plugged into a 110-240 V, 50-60 Hz socket without any special adjustments, thus allowing you to travel anywhere in the world. You will, however, need to use the correct plug adapter for the power supply socket of the country you are visiting.

  • Can I travel with my CPAP device?

    Airport staff and security officials are usually quite familiar with CPAP devices. You might, however, be asked to show your prescription at customs. Always pack your device in your carry-on luggage to avoid damage. Some airlines allow the use of CPAP machines on long flights and some do not.