Rad-57 Signal Extraction Pulse CO-Oximeter Operator’s Manual 1-5
1
1
overview
Pulse CO-Oximetry
SpO
2
GENERAL DESCRIPTION
Pulse oximetry is a continuous and non-invasive method of measuring the level of arterial
oxygen saturation in blood. The measurement is taken by placing a sensor on a patient,
usually on the fingertip for adults, and the hand or foot for neonates. The sensor connects
to the pulse oximetry device with a patient cable. The sensor collects signal data from the
patient and sends it to the device. The device displays the calculated data in two ways:
1) As a percent value for arterial oxygen saturation (SpO
2
)
2) As a pulse rate (PR)
The following figure shows the general monitoring setup.
SpCO GENERAL DESCRIPTION
Pulse CO-Oximetry is a continuous and non-invasive method of measuring the levels
of carbon monoxide concentration (SpCO) in arterial blood. It relies on the same basic
principles of pulse oximetry (spectrophotometry) to make its SpCO measurement. The
measurement is obtained by placing a sensor on a patient, usually on the fingertip for
adults and the hand or foot for infants. The sensor connects either directly to the Pulse
CO-Oximetry device or through a patient cable. The sensor collects signal data from the
patient and sends it to the device. The Rad-57c and Rad-57cm display the calculated data
as percentage value for the SpCO, which reflect blood levels of carbon monoxide bound
to hemoglobin.
SpMet GENERAL DESCRIPTION
Pulse CO-Oximetry is a continuous and non-invasive method of measuring the levels
of methemoglobin concentration (SpMet) in arterial blood. It relies on the same basic
principles of pulse oximetry (spectrophotometry) to make its SpMet measurement. The
measurement is obtained by placing a sensor on a patient, usually on the fingertip for
adults and the hand or foot for infants. The sensor connects either directly to the Pulse
CO-Oximetry or through a patient cable. The sensor collects signal data from the patient
and sends it to the device. The Rad-57m and Rad-57cm display the calculated data as
percentage value for the SpMet.
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