Sleep_studies.jpg


Summary

Description
English: The illustration shows the standard setup for a polysomnogram. In figure A, the patient lies in a bed with sensors attached to the body. In figure B, the polysomnogram recording shows the blood oxygen level, breathing event, and rapid eye movement (REM) sleep stage over time.
Date
Source National Heart Lung and Blood Institute (NIH)
Author National Heart Lung and Blood Institute (NIH)

Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code . Note : This only applies to original works of the Federal Government and not to the work of any individual U.S. state , territory , commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978 . (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use .

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

12 November 2013