Article · 2 min read
What Happens During a CPAP Titration Study?
Your CPAP titration night is a key step in getting sleep apnea treatment that works. Here's what to expect.
General information, not medical advice. Read our disclaimer.
A CPAP titration study is an overnight test in a sleep lab. A technologist (a trained sleep tech) adjusts your CPAP air pressure to find the best setting for your sleep apnea. It is usually done after your first sleep study has confirmed that you have sleep apnea.
How should you get ready?
- Same steps as before — Follow the same steps you used to get ready for your first sleep study.
- Caffeine and alcohol — Avoid them.
- What to pack — Bring comfortable sleepwear and your usual bedtime items.
- Your mask — If you have a mask you prefer, let the sleep lab know ahead of time.
What happens during the study?
The setup is like your first sleep study, but you also wear a CPAP mask.
- Mask fitting — The technologist helps you try different mask styles to find the best fit.
- Sensors — All the usual sleep sensors are placed on you.
- Starting low — CPAP starts at a low pressure once you are ready to sleep.
- Turning it up — The pressure slowly goes up to stop apneas and hypopneas (times when your breathing stops or gets shallow).
- Watching the mask — The technologist checks your mask fit all night and adjusts it as needed.
How does the tech find your best pressure?
The goal is the lowest pressure that stops your breathing events. It needs to work in every sleep position and every stage of sleep. That includes REM sleep (the dreaming stage), when apnea is often worst.
The technologist also makes sure the pressure does not cause too much mask leak or discomfort.
What happens after the study?
Your sleep doctor reviews the data and decides on your prescribed pressure. This prescription goes to your equipment provider. They set up your CPAP machine for home use. You will usually have a follow-up visit to make sure your therapy is working well.
CPAP · TITRATION
Titration night vs split-night study
| Titration study | Split-night study | |
|---|---|---|
| WhenDeciding factor | After a sleep study confirms sleep apnea | Same night, if sleep apnea shows early |
| What happens | CPAP pressure is adjusted all night | First part tests, the rest adjusts CPAP |
| Nights in the lab | A separate night | One night |
If titration does not work well, it may be repeated, or your doctor may prescribe auto-CPAP.
CPAP · TITRATION
Your titration night, step by step
- 1
Get ready
Prepare like a sleep study; avoid caffeine and alcohol.
- 2
Find a mask
The technologist helps you try mask styles for the best fit.
- 3
Sensors go on
The usual sleep study sensors are placed on you.
- 4
Start low, go up
Pressure starts low and rises until breathing pauses stop.
Key point - 5
Check all positions
Find the lowest pressure that works in every position, including REM.
- 6
Home setup
Your doctor sets your pressure; then you have a follow-up visit.
Watch and learn
Common questions
Can I bring my own CPAP mask to a titration study?
What if the titration doesn't work well?
How is a split-night study different?
Trusted medical sources
This page follows guidance and research from leading medical organizations.
Further reading
- AASMCPAP Therapy
- Sleep FoundationCPAP Machines
- NHLBIPAP Therapy Overview
- AASMObstructive Sleep Apnea
- NHLBISleep Apnea Information
- Mayo ClinicOSA Overview
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