Question:
What are the key monitoring and intervention protocols during a split study polysomnography (PSG) for patients with suspected sleep apnea?
Answer:
Patients are monitored continuously throughout the procedure on a polygraph or other recording system, and continuous auditory and video recordings are made as well. It may be necessary for the technologists to interact with the patient during the night to administer interventions at the physician’s direction.
For example, it may be necessary to apply CPAP at a mid-point during the study to relieve episodes of apnea. The diagnostic procedure initially performed is a PSG identified by 95782. A mask is applied at the point the need for CPAP is identified. At this point, 95783 defines the procedure. This is commonly referred to as a split study.
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