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Pulse Oximeters Including Nonin For Fingertip Oximetry
As the definition of arterial blood gas was previously defined and explained the two important calculations pertaining to arterial blood gas that need to be understood, namely the PaCO2 and PaO2, will now also be defined. Wikipedia the free encyclopaedia at en.wikipedia.org defines PaCO2 as, quote ‘The carbon dioxide partial pressure (PaCO2) indicates a respiratory problem: for a constant metabolic rate, the PaCO2 is determined entirely by ventilation.[7] A high PaCO2 (respiratory acidosis) indicates under ventilation, a low PaCO2 (respiratory alkalosis) hyper or over ventilation. PaCO2 levels can also become abnormal when the respiratory system is working to compensate for a metabolic issue so as to normalize the blood pH. An elevated PaCO2 level is desired in some disorders associated with respiratory failure; this is known as permissive hypercapnia'.
Wikipedia the free encyclopaedia at en.wikipedia.org defines PaO2 as, quote ‘A low O2 indicates that the patient is not respiring properly, and is hypoxemic. At a PaO2 of less than 60 mm Hg, supplemental oxygen should be administered. At a PaO2 of less than 26 mmHg, the patient is at risk of death and must be oxygenated immediately'. The next term that people need to understand is that of Oxygen Saturation and how it applies to their oximetry. According to Wikipedia the free encyclopaedia at en.wikipedia.org the definition of oxygen saturation is, quote ‘Oxygen saturation or dissolved oxygen (DO) is a relative measure of the amount of oxygen that is dissolved or carried in a given medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water'.
The definition of oxygen saturation from en.wikipedia.org goes on to say that, quote ‘Oxygen saturation in medicine in medicine, oxygen saturation (SO2), commonly referred to as ‘sats', measures the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen. At low partial pressures of oxygen, most hemoglobin is deoxygenated. At around 90% (the value varies according to the clinical context) oxygen saturation increases according to an oxygen-hemoglobin dissociation curve and approaches 100% at partial oxygen pressures of greater than10 kPa. A pulse oximeter relies on the light absorption characteristics of saturated hemoglobin to give an indication of oxygen saturation. Saturation of peripheral oxygen (SpO2) is an estimation of the oxygen saturation level usually measured with a pulse oximeter device. It can be calculated with the pulse oximetry according to the following formula where SPO2 is equal to HbO2 divided by (HbO2 plus Hb)'.
People who need pulse oximeters to monitor the oxygenation levels of the haemoglobin in their blood need to visit this link http://www.medicalpulseoximeter.com in order to study the various types and brands of pulse oximeter products offered by Medical Pulse Oximeter LLC, which are the PowerEase 1000 Pulse Oximeter, PowerEase 2000, PowerEase CMS-50D, PowerPlus CMS-50E and the Nonin SportStat Pulse Oximeter, before they decide to purchase one.
Visit Pulse Oximeters to purchase your pulse oximeter from Medical Pulse Oximeter LLC.
To learn more about all the Pulse Oximeters and related services offered by Medical Pulse Oximeter LLC visit this link Pulse Oximeters Including Nonin For Fingertip Oximetry.
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