Pulse index

Difficult question to answer as it seems to fluctuate quite a lot. For me I also run Heartmate 3 at 5500 rpm. Early mornings I can be like 3.6 flow and as high as 7.5 pi. Later in the day this will normalize more like 4.2 flow and 5.6 pi. My doctor states I'm so low in the mornings due to just getting out of bed. Be sure to check with your doctor and they will pull a history and see if there is anything that needs to be checked further.