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Titration studies also begin and end the same times as standard sleep studies. Throughout the night, a respiratory therapist slowly adjusts the therapy device until the patient's respiratory problems cease.
CPAP (Continuous Positive Airway Pressure) is a durable medical device that provides a constant flow of air into the patient's airway. The constant airflow acts as a pneumatic splint to keep the airway open and prevents the airway from collapsing (apnea). CPAP also eliminate hypopneas, when the patient's airflow decreases by 30% and causes oxygen desaturation.
BiPAP (Bilevel Positive Airway Pressure) is similar to CPAP, but provides different pressures for inspiration and expiration. The device cycles between the two pressures as the patient breaths.