Related Experiment Video
Updated: Sep 12, 2025

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
A 67-Year-Old Woman With Unexplained Nocturnal Hypoxemia
Kaveh Gaynor-Sodeifi1, Erin Eschbach2, David M Rapoport1
1Icahn School of Medicine at Mount Sinai, Division of Pulmonary, Critical Care, and Sleep Medicine, New York, NY.
Case Presentation:
A 67-year-old woman presents for a second opinion for insomnia. She reports falling asleep with ease but difficulty maintaining sleep, with several nighttime awakenings. She has previously undergone cognitive behavioral therapy for insomnia without any improvement in her symptoms. She denies snoring and witnessed apneas but reports occasional daytime sleepiness, with an Epworth Sleepiness Score of 11 out of 24, indicating significant sleepiness. The remainder of her sleep history is unremarkable. Additionally, she has a medical history of anxiety, depression, and chronic pain, which is managed with aripiprazole, bupropion, clonazepam (as needed), and gabapentin. Her surgical history is pertinent for a tonsillectomy at age 5.
Related Concept Videos
Acute Respiratory Failure-II
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
Hypoxia
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Hyperpnea and Hyperventilation
Respiratory Assessment: Purpose and Indications
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Physiological Control of Respiration
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Alterations in Respiration II
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...

