Re: Relion Home bp monitor accuracy...feedback
I don't have the model that you pump up. I have a ReLion that has automatic inflate.
How variable is your BP from one reading to the next? How much different are the readings if you have been walking around, then take it immediately compared to if you have been resting quietly for five minutes or more? How about if you take a couple of deep breaths between readings? Or if you hear someone say something on an emotionally touchy subject?
My doctor was sure that my monitor was off last month when she looked at my home readings and saw some places where the measurement went up or went down a lot within a couple of minutes. So she asked her nurse to check my monitor against theirs. But the nurse took my pressure with theirs when I had just walked out of the appointment with the doctor and was still totally hyper after disagreeing with the doc. Then she went and did some bookwork for a couple of minutes before coming back to check mine. Well, in the meantime I had had time to calm down a bit and no doubt took a couple of deep breaths. Systolic pressures were 181 and 154, respectively. The nurse said, "Oh, your monitor is off!" Then I went to Wal-Mart and sat there quietly for five minutes before taking my pressure. Systolic was 137.
I went through all kinds of other things to try to test my monitor. I took it to the fire station and had an EMT check it against theirs. I told him I really had to sit quietly for a while to tell. Unfortunately between readings, he said, "Are you having trouble with your blood pressure?" Okay, at that point that question had a lot of emotional content to me, and (no surprise here), my pressure was 14 points higher on their machine. I finally bought another machine, an Omron. I checked them against each other by taking a reading first on one, then the other, with about two minutes between readings. After a series of eight readings on both machines, some of the readings were considerably higher on one, some on the other. But the average was identical on diastolic and only two points different on systolic. I think my original machine was fine. It is just that my BP is very touchy and can change fast.
I've also discovered that I can lower my systolic reading by 12-33 points just by two minutes of deep breathing. I have also lowered it by 10-15 points just by taking two deep breaths.
I guess this is a very long way to say, "Yes, your meter could be that far off, but check out other possibilities, too."