Gima OXY-10, Руководство пользователя

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33
ENGLISH
hemoglobin (HbO
2
) and deoxygenated hemoglobin (Hb) have different
absorption character in the spectrum range from red to infrared light
(600nm~1000nm wavelength), by using these characteristics, SpO
2
can be
determined. SpO
2
measured by this oximeter is the functional oxygen
saturation - a percentage of the hemoglobin that can transport oxygen.
In contrast, hemoximeters report fractional oxygen saturation - a percentage
of all measured hemoglobin, including dysfunctional hemoglobin, such
as carboxyhemoglobin or metahemoglobin.
Clinical application of pulse oximeters: SpO
2
is an important physiological
parameter to reflect the respiration and ventilation function, so SpO
2
monitoring used in treatment has become more popular. (For example,
such as monitoring patients with serious respiratory disease, patients under
anesthesia during operation and premature and neonatal infants) The status
of SpO
2
can be determined in timely manner by measurement and will allow
finding the hypoxemia patient earlier, thereby preventing or reducing
accidental death caused by hypoxia effectively.
3. Factors affecting SpO
2
measuring accuracy (interference reason)
• Intravascular dyes such as indocyanine green or methylene blue
• Exposure to excessive illumination, such as surgical lamps, bilirubin lamps,
fluorescent lights, infrared heating lamps, or direct sunlight.
• Vascular dyes or external used color-up product such as nail enamel
or color skin care
• Excessive patient movement
• Placement of a sensor on an extremity with a blood pressure cuff, arterial
catheter, or intravascular line
• Exposure to the chamber with High pressure oxygen
• There is an arterial occlusion proximal to the sensor
• Blood vessel contraction caused by peripheral vessel hyperkinesias
or body temperature decreasing
4. Factors causing low SpO
2
Measuring value (pathology reason)
• Hypoxemia disease, functional lack of HbO
2
• Pigmentation or abnormal oxyhemoglobin level
• Abnormal oxyhemoglobin variation
• Methemoglobin disease
• Sulfhemoglobinemia or arterial occlusion exists near sensor
• Obvious venous pulsations
• Peripheral arterial pulsation becomes weak
• Peripheral blood supply is not enough