What To Expect Before Using CPAP

Before your sleep specialist prescribes CPAP, you'll likely have a sleep study called a polysomnogram, or PSG.

A PSG usually is done while you stay overnight at a sleep center. This study records brain activity, eye movements, heart rate, blood pressure, and other important data while you sleep.

What To Expect During a Polysomnogram

Your sleep specialist may suggest a split-night sleep study. During the first half of the night, your sleep will be checked without a CPAP machine. This will show whether you have sleep apnea and how severe it is.

If the PSG shows that you have sleep apnea, you may use a CPAP machine during the second half of the split-night study. A technician will help you select a CPAP mask that fits and is comfortable.

While you sleep, the technician checks the amount of oxygen in your blood and whether your airways stay open. He or she adjusts the flow of air through the mask to find the setting that's right for you. This process is called CPAP titration.

In some cases, this isn't done all in the same night. Some people need to go back to the sleep center for the CPAP titration study. Your sleep specialist will decide which type of study is best for you and leave instructions with the technician.

What To Expect After a Polysomnogram

Your sleep specialist will review the results from your sleep study. If CPAP will benefit you, he or she will prescribe the type of CPAP machine and the correct settings for you.

Most health insurance companies now cover CPAP treatment. You may want to contact your health insurance provider to learn more about this coverage.

Your sleep specialist may be able to refer you to a local home equipment provider. The home equipment provider will use your prescription to set up your CPAP machine. Ask your sleep specialist to recommend a home equipment provider that has a lot of experience with CPAP.

It's important to continue to work with your sleep specialist as you adjust to CPAP treatment. Talk to him or her about how to handle followup questions. Your sleep specialist can answer some questions, but your home equipment provider may need to address others.

Selecting a CPAP Machine and Mask

CPAP units come with many features designed to improve fit and comfort. Your home equipment provider will help you select a machine based on your prescription and the features that meet your needs.

You may be able to use the CPAP unit for a trial period to make sure you're happy with your choice.

There are many types of CPAP masks. The fit of your mask is important, not only for comfort, but also to keep air from leaking out. A mask that fits will help maintain proper air pressure and keep your airways open.

CPAP masks come in different shapes, sizes, and materials. Some fit over your nose and mouth; others only cover your nose. Some masks can be worn with eyeglasses. If you need oxygen, masks are available that have room for an oxygen tube.

Nasal pillows may be used instead of a mask. Nasal pillows are small, flexible, mushroom-shaped cones that fit into each nostril.

Let your home equipment provider know whether your sleep on your back, side, or stomach. Different types of plastic tubing connect the mask to the CPAP machine. Some types may make it easier for you to sleep on your side or stomach.