WHEN SHOULD PATIENTS BE CONSIDERED FOR SLEEP STUDIES?

  • Unexplained chronic persistent insomnia with excessive daytime sleepiness.

  • Strong clinical suspicion of sleep apnea, narcolepsy, rem-behavior disorder, or disabling leg movement disorders.

  • Unexplained erythrocytosis (high hemoglobin concentration).

  • Unexplained pulmonary hypertension.

  • Unexplained Hypercapnia (elevation of carbon dioxide in blood).

  • Unexplained persistent morning headaches with normal CT scan.

  • Patients with known sleep-related disorders who need follow assessments of effectiveness of therapies.