GE Dash 2500 User Manual

13-16 Dash 2500 Patient Monitor 2042480-001 C
MASIMO SET® SpO2: Troubleshooting
PROBLEM: The oxygen saturation measurement does not correlate with the
value calculated from a blood gas determination.
CAUSE:
 The SpO
2
calculation may not have correctly adjusted for the effects of
pH, temperature, pCO
2
, fetal hemoglobin, or 2, 3-DPG.
 Accuracy can be affected by incorrect sensor application or use,
intravascular dyes, bright light, excessive patient movement, venous
pulsations, electrosurgical interference, and placement of a sensor on
an extremity that has a blood pressure cuff, arterial catheter, or
intravascular line.
SOLUTION:
 Check that calculations have been corrected appropriately for the
relevant variable. In general, calculated saturation values are not as
reliable as direct laboratory hemoximeter measurements.
 If there is excessive light, cover the sensor with opaque material.
 Circulation distal to the sensor site should be checked routinely. The site
must be inspected every 2 hours to ensure adhesion, skin integrity, and
correct optical alignment. If skin integrity changes, move the sensor to
another site.
 Try to keep the patient still, or change the sensor site to one with less
motion.
 Observe all instructions, warnings, and cautions in this manual and in
the directions for use of the sensor.
PROBLEM: An SpO
2
signal quality alarm has occurred.
CAUSE:
 Weak or “noisy” signal.
SOLUTION:
 Check the patient.
 If possible, keep the patient still; check whether the sensor is applied
securely and properly and replace it if necessary; move the sensor to a
new site; use a sensor that tolerates more motion.
 If there is excessive light, cover the sensor with opaque material.
PROBLEM: The SpO
2
signal has disappeared but the value persists, and an alarm
does not occur immediately.
CAUSE:
 Probe may have become dislodged.
SOLUTION:
 Check the patient.
 If possible, keep the patient still; check whether the sensor is applied
securely and properly and replace it if necessary; move the sensor to a
new site; use a sensor that tolerates more motion.

GE Dash 2500 Specifications

General

Brand	GE
Model	Dash 2500
Category	Medical Equipment
Language	English