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FAQ - HST vs PSG: How does HST differ from an in-lab test (PSG)?  Answer To Frequently Asked Question


FAQ - HST vs PSG: How does HST differ from an in-lab test (PSG)?

  Home Sleep Testing (HST) is used only to look for Obstructive Sleep Apnea (OSA). Only 4-5 channels of physiologic data regarding respiration are obtained with HST, as opposed to 14 channels of EEG, respiratory, and limb sensors during in-lab polysomnography.
Information on sleep stages and EEG is not obtained with HST. If the HST is negative in a patient suspected of having OSA, the patient should have an in-lab PSG for confirmation.

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