Correct Usage Method for SpO2 probe

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If the sp02 probe is too tight, it may detect non-arterial pulsations, resulting in venous pulsations on the finger. Venous pulsation can also be caused by right heart failure, tricuspid regurgitation, and the hemostatic band of the blood pressure cuff above the probe. Cardiac arrhythmias can lead to inaccurate measurement results, especially in the presence of obvious defects in the apex/radial bone.