Nitrobenzene poisoning and spurious pulse oximetry
نویسندگان
چکیده
منابع مشابه
Pulse Oximetry
The principal advantage of optical sensors for medical applications is their intrinsic safety since there is no electrical contact between the patient and the equipment. (An added bonus is that they are also less suspect to electromagnetic interference). This has given rise to a variety of optical techniques to monitor physiological parameters: for example, the technique of Laser Doppler veloci...
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Stokes (1) reported that the colored substance in blood carries oxygen. This was followed by Hoppe-Seyler (2), who first crystallized this substance and coined the term hemoglobin. Additionally, it was shown that the pattern of light absorption changes when shaken with air (2). Hertzman (3) described using photoelectric plethysmography of fingers and toes as a dynamic analysis of the peripheral...
متن کاملMethemoglobinemia and Pulse Oximetry
In reviewing the article “Methemoglobinemia: Sudden Dyspnea and Oxygen Desaturation After Esophagoduodenoscopy,” in the August 2004 issue of RESPIRATORY CARE,1 I found the article suggested that, during the esophagoduodenoscopy procedure the patient’s blood oxygen saturation (measured via pulse oximetry) began to drop rapidly, and a saturation of 54% registered on the pulse oximeter while the p...
متن کاملPulse Oximetry
Introduction There is no doubt that pulse oximetry represents the greatest advance in patient monitoring in many years. It has the unique advantage of continuously monitoring the saturation of hemoglobin with oxygen, easily and noninvasively, providing a measure of cardio-respiratory function. By virtue of its ability to quickly detect hypoxaemia, it has become the standard of care during anaes...
متن کاملCombining pulse oximetry and NIRS: Pulse Spectroscopy
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...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1990
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1990.tb14627.x