Applied to the best site ie. index finger (thumb ok in kids)
Sensor attachment flush with tissue surface
Local vasodilator such as methyl salicylate 10-30% and menthol 2-10% can be used if long transport
Don't forget to remove or deflate BP cuff or band
SpO2 Heart Rate MUST match actual pulse rate!!!!!
Waveform or LED Color needs to confirm clean sample
Take all readings when the probe is at heart level
Dyshemoglobinemia (Dysfunctional hemoglobin)
Carboxyhemoglobin readings unreliable
Methemoglobinemia " "
Sickle Cell Anemia " "
Thalassemias " "
Anemias " "
Interference - readings unreliable
Electronic/Electrical - RF, High tension lines rarely
Movement - patient, sensor, stretcher, vehicle, active seizure
Radiated light - infrared, visible and ultraviolet
Nail polish, heavy, or dark
Dark pigmentation (not too much of a problem with finger robe)
Intravenous Dyes such as Cardiogreen (within 48 hrs)
Pulsatile venous system ie. CPR or tricuspid regurgitation
Normal Values (at sea level)
Healthy patient on room air 94-100%
COPDer on room air 90-100%
92% Sat is roughly equal to a Pa02 of 80 mm Hg, the threshold of hypoxia. (these values are relative and can change based on shifts of the Oxyhemoglobin Dissociation Curve or your elevation above or below sea level)
Use as tool to worry you, not to make you feel better
Don't triage with a pulse oximeter
Don't deny a SOB patient O2 while waiting for an SpO2
Don't forget to document all readings and changes on the PCR.