| respiratory disturbance index |
A measurement of the number of disordered breathing cycles during sleep. Sleep disordered breathing, which includes both apneas and hypopneas, results in daytime fatigue. It is also associated with an increased prev
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| respiratory failure, acute |
Any impairment in oxygenation or ventilation in which the arterial oxygen tension falls below 60 mm Hg, and/or the carbon dioxide tension rises above 50 mm Hg, and the pH drops below 7.35. T
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| respiratory failure, chronic |
Chronic inability of the respiratory system to maintain the function of oxygenating blood and remove carbon dioxide from the lungs. Many diseases can cause chronic pulmonary insufficiency, including asthmatic airway
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| respiratory frequency to tidal volume ratio |
ABBR: f/VT. In mechanical ventilation, a measure of the speed and depth of spontaneous breathing, used to gauge a patient's dependency on life support. The higher the ratio, the less likely it is that
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| respiratory function monitoring |
The use of various techniques to provide alarms that alert a patient's attendants to a change in the ability of the lungs to perform their functions. These techniques include noninvasive devices for measuring the
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