how hard the patient breathes; when the patient breathes weakly, the waveform’s amplitude seems
low.
■ The ECG module is defective.
Table 4-4
4.6.5 SpO
2
Failures
The SPO
2
probe is defective
The SPO
2
probe and the SPO
2
module are mismatched.
Replace the SPO
2
probe that matches the SPO
2
module
The SPO
2
module is defective
Parameter board is defective
There is large
deviation in
SPO
2
value and
waveform is
chaotic
The tested object’s fingers
move a lot.
The SPO
2
probe is defective
The SPO
2
module is defective
Possible causes of the symptoms:
● Incorrect SPO
2
value and chaotic waveform
■ This symptom can also be caused by the object’s hypothermia, poor perfusion, shock, or the use of
vasoactive drugs, in addition to the previously mentioned causes.
● Typically, a defective SPO
2
plate that produces no waveform data shows up as follows:
■ There is no lighting in the SPO2 probe light tube.
■ The probe tube lights up, but when a finger is inserted, the light flashes continuously.
Table 4-5
4.6.6 NIBP Failures
Can’t start air
inflation
The air valve or air pump is
defective
Check if the air valve or pump is defective. If the
machine makes a ticking noise when it is turned on,
the air valve is likely in good working order.
Parameter board is defective
Replace the Parameter board
The main board is defective