The split-night polysomnogram is a combination of the simple polysomnogram and the CPAP titration. Primarily used for patients who likely have obstructive sleep apnea (OSA), this test was developed to be less time-consuming and less expensive for patients.
What to expect:
The first part of the exam is the simple polysomnogram. The technician watches for evidence of OSA. If the polysomnogram shows you have OSA, the CPAP titration test is run. The overall goal is to quickly identify obstructive sleep apnea and initiate treatment, all in a single night.