Philips HEARTSTART XLT M3500B Manuale Utente
SpO2 Monitoring
1-6
Introduction
SpO
2
Monitoring
A pulse oximeter is a noninvasive device that indicates the oxygen saturation
(SpO
(SpO
2
) of arterial blood. This measurement is obtained through a probe that
directs red and near infrared light through arterial beds. Hemoglobin absorbs
these lights differently when it is bound with oxygen. Pulse oximetry mea-
sures this difference and translates the measurement into a saturation percent-
age that is displayed as an SpO
these lights differently when it is bound with oxygen. Pulse oximetry mea-
sures this difference and translates the measurement into a saturation percent-
age that is displayed as an SpO
2
reading.
Indications
SpO
2
monitoring is indicated for use when it is beneficial to assess a patient’s
oxygen saturation level.
Contraindications
None known.
NOTE
Readings should be carefully considered in the presence of certain circum-
stances. Inaccuracies may result from the use of pulse oximeters in the pres-
ence of certain circumstances, such as hemoglobin saturated with compounds
other than oxygen (such as carbon monoxide), hypothermia, hypovolemia,
patient movement, nail polish and excessive ambient light.
stances. Inaccuracies may result from the use of pulse oximeters in the pres-
ence of certain circumstances, such as hemoglobin saturated with compounds
other than oxygen (such as carbon monoxide), hypothermia, hypovolemia,
patient movement, nail polish and excessive ambient light.