Pulse Oximetry (SpO
respiratory systems. This chapter explains how Pulse Oximetry works and how to use the Efficia
DFM100 to monitor SpO
Pulse oximetry is a non-invasive method of continuously measuring functional oxygen saturation
) in arterial blood. SpO
blood which are saturated with oxygen.
You can monitor SpO
patients. Use the Patient Category
When pressing the Patient Category button, all parameter alarm limits change to the new patient
category. These changes are retained when you switch modes.
WARNINGS: Do not leave an SpO
For patients with an intra-aortic balloon pump, access peripheral pulses according to your
Do not rely solely on SpO
Incorrect sensor application or use
Significant levels of intravascular dyshemoglobins such as carboxyhemoglobin or
methemoglobin in patient
Patients with other disorders of hemoglobin
Patients with restricted blood flow to the extremities (such as those in severe shock or
Injected dyes such as methylene blue
Exposure to excessive illumination such as surgical lamps (especially those with a xenon light
source), bilirubin lamps, fluorescent lights, infrared heating lamps or direct sunlight
) is one of the tools available to assist in assessing a patient's cardiac and
readings indicate the percentage of hemoglobin molecules in arterial
in all Efficia DFM100 clinical modes and on both adult and infant/child
For patients that are ≥ 25kg or ≥ 8 years old, use Adult patient category
For patients <25kg or < 8 years old, use Infant/Child patient category
The neonatal patient category is not supported.
sensor on a patient undergoing an MRI.
readings; assess the patient at all times. Inaccurate measurements may be
button to switch categories.