In addition, pulmonary X-ray, arterial oxygen partial pressure (PaO2), oxyhemoglobin saturation
, carbon dioxide partial pressure (PaCO2), oxygenation index (OI), and ratio of arterial/pulmonary oxygen partial pressures (a/AO2) were also compared.
The oxyhemoglobin saturation
was monitored throughout the process.
Commonly used denitions of hypopnea require a 30% reduction in airow associated either with a reduction in oxyhemoglobin saturation
or an arousal from sleep.
Physicians may choose not to give supplemental oxygen if oxyhemoglobin saturation
is more than 90%, and also not to use continuous pulse oximetry given that it is prone to errors of measurement.
Patients who spent much of their sleep time getting less than 90% oxyhemoglobin saturation
were nearly nine times more likely to die of cancer during the study, compared with controls, said Dr.
Chest and abdominal efforts were recorded using inductive plethysmography and arterial oxyhemoglobin saturation
by pulse oximetry with a finger probe.
It is imperative that the practitioners understand that the oxyhemoglobin saturation
reported by the pulse oximeter should be considered inaccurate (18).
A 78-year-old woman with a history of restrictive lung disease was admitted to the pulmonary service for shortness of breath with desaturation to oxyhemoglobin saturation
(SpO2) 84% on 6L nasal cannula, hypercapnia and hypoxemia.
Near-infrared spectroscopy (NIRS) is a relatively fast and noninvasive method to measure tissue oxyhemoglobin saturation
During each session, heart rate, blood pressure and exertional symptoms were monitored, Oxyhemoglobin saturation
was monitored by a respiratory therapist blind to the study.
Pulse oximetry is a noninvasive method of photoelectrically determining the oxyhemoglobin saturation
of arterial blood.
Pulse oximetry provides estimates of arterial oxyhemoglobin saturation