For our Referring Physicians: Kearney Sleep Lab is dedicated to partnering with you to achieve improved health for you and your patients. We also place a high priority on patient education concerning sleep disorders.

Sleep disorders have historically been challenging to diagnose. They have been among the most under-recognized and under-treated conditions in the field of medicine.

Fortunately, this dilemma is undergoing rapid change. Sleep disorders, such as Obstructive Sleep Apnea (OSA), are quickly diagnosed and successfully treated at our sleep lab, leading to increased overall patient health. In fact OSA is now recognized as a reversible cause of hypertension and heart disease.

The following conditions have been related to various sleep disorders:

  • Strokes
  • Insulin Resistance/Diabetes
  • Chronic Fatigue
  • Mood Disorders
  • Atrial Fibrillation
  • Hypertension
  • Hypertensive Heart Disease

When considering a referral, always start with a consultation rather than a sleep study. Like any other disease entity, “History and Physical” is the cornerstone of sleep evaluation. For example, if the patient is unlikely to have sleep apnea, doing a sleep study can actually create a more confusing representation.

Many sleep disorders have more than one issue that requires treatment. For instance, it is not unusual for patients with Obstructive Sleep Apnea to have sleep-related anxiety, poor sleep habits/hygiene, and/or depression. All these important issues need to be addressed to result in a successful outcome for the patient.

Common Reasons For Sleep Evaluation

Excessive daytime sleepiness: Patients may have various causes of sleepiness, including insufficient sleep syndrome, poor sleep hygiene, narcolepsy and Obstructive Sleep Apnea.


Insomnia: This condition is usually a clinical diagnosis and polysomnography is not indicated.

Various movement disorders during sleep: These symptoms may be related to multiple forms of Parasomnia, REM-related behavioral disorder and/or seizure disorder.

Evaluation for causes of excessive fatigue: Sleepiness and fatigue are terms that are used interchangeably. Another explanation for fatigue is seen in patients with fibromyalgia. These patients tend to have a peculiar EEG pattern, known as alpha delta pattern, a condition that has been associated with sleep that is not refreshing. Some experts have suggested that this may be a form of upper airways resistance syndrome.


Polysomnography, commonly referred to as a sleep study, involves measurement of various physiological changes that occur with sleep.

To stage sleep, we examine the patient’s EEG pattern, muscle tone and eye movements. These observations will indicate whether the patient is in light sleep, deep sleep or REM.

Additional physiological patterns that are evaluated are breathing sound, airflow, chest and abdominal movement and oxygen saturation. These parameters are determined and measured to assess the efficiency of breathing during the patient’s sleep.

Other important measurements evaluated by our sleep lab are EKG, and body position. Depending upon the indication for the study, various physiological parameters can be enhanced for a more focused study.