The pulse oximeter is unable to distinguish between carbon monoxide and oxygen and so the result is faulty.
The perfusion index is calculated by dividing the pulsatile signal AC by the non-pulsatile signal DC , multiplied by 100.
In that case you can use two more fans and detach that fan which is connected with pi.
On the other hand, for consistency purposes, a fixed side is more appropriate, for instance, the fetal end or the placenta end.
However athletes may have a resting heart rate range from 30 to 40 bpm.
Oxygen saturation shows how effectively blood carries oxygen throughout the body.