Mallinckrodt NPB-190 Betreibershandbuch PDF herunterladen (Seite 77)

Troubleshooting and Maintenance

• The sensor may be too tight, there may be excessive

ambient light, or the sensor may be on an extremity

with a blood pressure cuff, arterial catheter, or

intravascular line. Reposition sensor, as necessary.

• Excessive environmental motion or electromagnetic

interference may be preventing the N-395 from

tracking the pulse. Remove the source of

interference or try to stabilize the environment, or

do both.

5. The Pulse Search Indicator lights after successful

measurements have been made.

• Check the patient.

• Perfusion may be too low for the N-395 to track the

pulse. Test the instrument on someone else.

Change the sensor site. Try another type of sensor.

• Prolonged patient motion may be preventing the N-

395 from tracking the pulse. Verify that the sensor

is securely applied and replace it if necessary.

Change the sensor site. Use a type of sensor that

tolerates more patient movement; for example, an

adhesive sensor.

• The sensor may be too tight, there may be excessive

ambient light, or the sensor may be on an extremity

with a blood pressure cuff, arterial catheter, or

intravascular line. Reposition sensor, as necessary.

• Excessive environmental motion or electromagnetic

interference may be preventing the N-395 from

tracking the pulse. Remove the source of

interference or try to stabilize the environment, or

do both.

Other physiological conditions or medical procedures that may

interfere with the monitor’s measurements include dysfunctional

hemoglobin, arterial dyes, and dark pigment.

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Mallinckrodt NPB-190 Betreibershandbuch Seite 77