Titration (pressure setting)
A setting night to find the air pressure on a CPAP machine that is right for you.
A little more detail
A study in the sleep laboratory, with polysomnography, in which PAP pressure is raised step by step until obstructive events disappear. Under the AASM 2008 guideline, CPAP starts at least at 4 cmH2O and is raised by at least 1 cmH2O at intervals of at least 5 minutes; the recommended upper limit at age 12 and over is 20 cmH2O. The aim is to eliminate apneas, hypopneas, RERAs and snoring; at the chosen pressure, SpO2 is expected to stay above 90% and leak to be acceptable. The AASM 2019 guideline states that in adults without significant comorbidities, treatment can be started at home with an auto-adjusting device (APAP) or with laboratory titration.
Source: Kushida CA, Chediak A, Berry RB et al. Clinical guidelines for the manual titration of positive airway pressure in patients with obstructive sleep apnea. J Clin Sleep Med. 2008;4(2):157-171. doi:10.5664/jcsm.27133; Patil SP, Ayappa IA, Caples SM et al. Treatment of adult obstructive sleep apnea with positive airway pressure: an American Academy of Sleep Medicine clinical practice guideline. J Clin Sleep Med. 2019;15(2):335-343. doi:10.5664/jcsm.7640