User's Manual

Contents

071-0774-00 Rev. A 3-1

Overview

Pulse oximetry enables you to noninvasively monitor a patient's hemoglobin

oxygen saturation either continuously or episodically. The oximetry sensor

contains two light emitting diodes (LEDs) that transmit specific wavelengths

(approximately 660 and 940 nanometers) of light that are received by a

photodetector.

Oxygen saturated blood absorbs light differently than unsaturated blood. Thus,

the amount of light absorbed by the blood can be used to calculate the ratio of

oxygenated hemoglobin to total hemoglobin in arterial blood. This ratio is

displayed as percent SpO

. Normal values range from 95 to 100%.

WARNING:

• A pulse oximeter should NOT be used as an apnea monitor.

• A pulse oximeter should be considered an early warning

device. If a trend towards patient deoxygenation is

indicated, blood samples should be analyzed by a

laboratory co-oximeter.

• With the Module Configuration Manager feature, you can define

your own default settings for characteristics such as alarm

limits, alarm priority, and display configuration. Refer to the

Module Configuration Manager chapter in the UCN Operations

Manual for further details.

• Blood oxygen saturation monitoring must be performed in

conjunction with ECG monitoring. The ECG lead wires of the

91343 must be connected to the patient in order to perform

ECG and blood oxygen saturation monitoring.

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Setting Up SpO2 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Ensuring Accurate Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Setting or Adjusting Alarm Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Setting SpO2 Data Averaging Period and Sampling Interval . . . . . . . . . . . . . . 6

Viewing Pulse Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SpO2 with Intra-Aortic Balloon Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Using SpO2 with Neonates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SpO2 Alarm Message Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SpO2 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3SpO

(91343 only)