F-8 624074/07
F Pulse oximetry
• If there is low transthorasic pressure, the inten-
sity of HLI is decreased.
• HLI can be incorrect when
– Tidal volume is < 8 ml/kg
– Patient’s breath activity is spontaneous
– Driving pressure is < 10 cmH
2
O
• If PEEP changes often and too many recruit-
ment maneuvers occur, the HLI will fluctuate.
• When there are cardiac dysfunctions, HLI will
read too high or too low.
• When HR/RR<3-4, HLI sensitivity is low.
• Regularly check the plethysmographic curve
(patient motion), as well as SpO
2
and HLI QI.
• Before maintenance or cleaning, disconnect the
SpO
2
adapter from the device. Failure to comply
with this instruction can result in electrical
shock and SpO
2
malfunction or both.
• With very low perfusion at the monitored site,
the readings may read lower than core arterial
oxygen saturation.
• Avoid permanent contact of the SpO
2
adapter
and the body.
• Regularly change the measurement site of the
sensors according to the skin of the patient.
Take extreme care with the following patients:
patient with fever, patient with peripheral
circulation insufficiency.
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