Sleep Studies

Multiple Sleep Latency Test, Polysomnogram (Sleep Study), Sleep Apnea Study

Why It Is Done

Sleep studies are done to find sleep problems, including:

• Sleep apnea. For more information, see the topic Sleep Apnea.
• Hypopnea, which is an abnormal decrease in air flow to your lungs.
• Excessive snoring.
• Insomnia.
• Narcolepsy.
• Heart rhythm problems.
• Periodic limb movement disorder.

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Author:	Maria G. Essig, MS, ELS	Last Updated: July 13, 2007
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Jan Ulfberg, MD, PhD - Sleep Disorders
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