نتایج جستجو برای: saturation having reached near 85 by pulse oximetry
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Pulse oximetry and NIRS are fundamental technologies in anesthesia and critical care for monitoring oxygenation of the arterial blood and the tissue. Both technologies are based on photometric or spectroscopic methods. Combining both technologies in one sensor-system is the next step for advances in clinical monitoring to get better information about oxygenation and perfusion of patients. A new...
Bilirubin, the yellow substance usually responsible for neonatal jaundice, is currently monitored invasively or by observing/measuring skin colour. This paper investigates the feasibility of monitoring serum bilirubin concentration using light absorbance in a similar fashion to pulse oximetry. The light absorbance of bilirubin is shown to be sufficiently different to haemoglobin to in theory al...
OBJECTIVE The adequacy of informed consent in the Surfactant, Positive Pressure, and Pulse Oximetry Randomized Trial (SUPPORT) has been questioned. SUPPORT investigators and publishing editors, heads of government study funding agencies, and many ethicists have argued that informed consent was adequate because the two oxygen saturation target ranges studied fell within a range commonly recommen...
BACKGROUND The authors evaluated the ability of visible light spectroscopy (VLS) oximetry to detect hypoxemia and ischemia in human and animal subjects. Unlike near-infrared spectroscopy or pulse oximetry (SpO2), VLS tissue oximetry uses shallow-penetrating visible light to measure microvascular hemoglobin oxygen saturation (StO2) in small, thin tissue volumes. METHODS In pigs, StO2 was measu...
Incorporation of pulse oximetry to the assessment of the newborn infant can enhance detection of critical congenital heart disease (CCHD). Recently, the Secretary of Health and Human Services (HHS) recommended that screening for CCHD be added to the uniform screening panel. The American Academy of Pediatrics (AAP) has been a strong advocate of early detection of CCHD and fully supports the deci...
Pulse oximetry is an important tool in evaluation and management of patients with cardiopulmonary disease. It provides an accurate, continuous, non-invasive measurement of oxygenation, however it has some limitations. Pseudohypoxemia is an artifactual condition that has been reported in patients with extreme leukocytosis and thrombocytosis. It should be suspected in patients with a discrepancy ...
PURPOSE OF REVIEW We outline and discuss recent work on auditory displays, covering both auditory alarms that indicate technical or physiological threshold levels and informative auditory displays that provide a continuous awareness of a patient's well being. RECENT FINDINGS The struggle to make auditory alarms informative proceeds with work on two fronts. In one approach, researchers are dev...
We present a frequency-domain optical method for real-time noninvasive measurement of absolute tissue and arterial saturation. This method is based on quantitative measurement of the tissue absorption spectrum (for tissue saturation) and of the amplitude of the arterial-pulsation-induced absorption oscillations (for arterial saturation) at eight wavelengths in the range 633-841 nm. We report re...
Since the early 1980s, when pulse oximetry was introduced, this noninvasive method of monitoring the arterial oxygen saturation level in a patient’s blood (SpO2) has become a standard method in the clinical environment because of its simple application and the high value of the information it gives nurses and doctors. It is as common in patient monitoring to measure the oxygen level in the bloo...
Screening with pulse oximetry for critical congenital heart defects is the subject of much recent debate. This review will explore the recent evidence for screening and discuss how implementation of screening might be best achieved.
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