Respironics 920M Manual de Serviço descarregar pdf (Página 51)

43

English

Troubleshooting Guide (continued)

Symptom Possible Cause Possible Solution

Erratic ♥ display

and/or yellow

perfusion LED

during

concurrent use of

electrosurgical

equipment (ESU)

ESU may be

interfering with

oximeter performance

Examine the patient:

move oximeter,

cables, and sensor as

far away from ESU as

possible or refer to the

ESU operator's

manual

Perfusion is

blinking yellow

with each pulse

Perfusion signal at

sensor site is

marginal

Examine the patient:

reposition sensor or

select alternate sensor

site

Unable to obtain

green perfusion

Low patient pulse

strength

Reposition sensor on

patient

Sensor site poorly

perfused

Sensor not correctly

positioned

Sensor attached too

tightly or tape or other

items are restricting

perfusion at sensor

site

Reapply sensor, select

alternate sensor site,

or remove restrictive

material from sensor

site

Circulation reduced

due to excess

pressure between the

sensor and a hard

surface

Allow sensor and

finger to rest

comfortably on surface

Excessive ambient

light

Reduce ambient light

Excessive patient

motion

Reduce patient motion

Sensor applied to a

polished fingernail

Remove fingernail

polish

Interference from:

• arterial

catheter

• blood pressure

cuff

• electrosurgical

procedure

• infusion line

Reduce or eliminate

interference

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