Article · 2 min read

What Is PAP Titration?

Finding the right pressure for your CPAP or BiPAP is key. Learn how a titration study sets up your treatment.

General information, not medical advice. Read our disclaimer.

CPAP · TITRATION

PAP titration at a glance

  • 9 PM-6 AMUsual titration night
  • 2Pressures set for BiPAP
  • PAP titration finds the best air pressure for your machine.
  • Too little pressure fails to treat apnea; too much feels uncomfortable.
  • It is done overnight in a lab, or at home with auto-CPAP.
  • A split-night study can test and set pressure in one night.
  • Your sleep doctor uses the results to set your treatment.

PAP titration is how your care team finds the best air pressure setting for your CPAP or BiPAP machine. The right pressure stops your breathing pauses and still feels comfortable. It is done overnight in a sleep lab, or at home with an auto-CPAP.

What is PAP?

PAP stands for positive airway pressure. CPAP and BiPAP are PAP machines that push air through a mask to keep your airway open. Think of titration as "dialing in" your treatment. The goal is a pressure that stops your breathing problems without making you uncomfortable.

How does a titration study work?

For a titration study in a sleep lab, you wear a CPAP or BiPAP mask while you sleep. A sleep technologist (a trained staff member) watches your sleep from another room. The technologist starts at a low pressure and slowly raises it through the night.

They stop when your apneas, hypopneas and snoring are gone. Apneas are pauses in breathing. Hypopneas are times of very shallow breathing. The technologist watches:

  • Breathing — Pauses and shallow breathing at each pressure level
  • Oxygen — The oxygen level in your blood
  • Snoring — How loud you snore
  • Sleep — How well you sleep and what position you sleep in
  • Mask fit — How your mask fits and whether air leaks out

What are the types of titration?

  • Full-night CPAP titration — The whole night is used to find the right pressure.
  • Split-night study — The first half of the night checks for sleep apnea. The second half finds the right pressure.
  • BiPAP titration — The technologist adjusts two separate pressures: one for breathing in (IPAP) and one for breathing out (EPAP).
  • Auto-titration — You use an auto-CPAP machine at home. It finds the best pressure on its own.

What happens after your titration?

Your sleep doctor will look at the results from your study. Then your doctor will prescribe the pressure that best controlled your sleep apnea. The prescription goes to the company that supplies your CPAP. They will set your machine to the right pressure.

CPAP · TITRATION

Types of titration

WhereHow it works
Full-night CPAP titrationSleep labThe whole night is used to find the right pressure
Split-night studySleep labFirst half checks for apnea, second half finds pressure
BiPAP titrationSleep labSets two pressures: breathing in (IPAP) and out (EPAP)
Auto-titrationHomeAn auto-CPAP machine finds the best pressure on its own

CPAP · TITRATION

How a titration night works

  1. 1

    Mask on for sleep

    You sleep in a sleep lab wearing a CPAP or BiPAP mask.

  2. 2

    Start low

    A technologist watches from another room and starts the pressure low.

  3. 3

    Raise slowly

    Pressure goes up slowly while they watch breathing, oxygen and snoring.

  4. 4

    Find the right level

    They stop when breathing pauses, shallow breathing and snoring are gone.

    Key point
  5. 5

    Get your prescription

    Your doctor prescribes the pressure, and your supplier sets your machine.

Watch and learn

CPAP and BiPAP: what's the difference?44 s · narrated and captioned

Common questions

Why do I need a titration study?
A titration study finds the exact air pressure you need to keep your airway open while you sleep. Too little pressure will not treat your sleep apnea. Too much can make you uncomfortable.
How long does a titration study take?
A titration study is an overnight test, like the sleep study used to check for sleep apnea. It usually runs from about 9 PM to 6 AM.
Do I always need a separate titration study?
Not always. Auto-CPAP machines can find the right pressure on their own. Some people have a split-night study, which checks for sleep apnea and finds the right pressure in the same night.

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