Difference between pulse and HR

[Glitter.Girl]

There are other issues that can cause a pulse to be high with a pulse oximeter. If they have an essential tremor or Parkinson's Disease and their hands are always shaking it is nearly impossible to get an accurate pulse from using a pulse oximeter. Essential Tremor, Parkison's and Cerebellar (among others) can also cause ECG artifact or the appearance of atrial fibrillation or ventricular tachycardia. Furthermore, I must say, that it is not that easy to correctly identify a tremor induced ECG artifact.