Barb & Checkers (GA)
Very Active Member
When I checked Checkers this afternoon, I got a 248. I thought it was too high for that time, so checked the other ear. It was 239. Checked same ear, only seconds later, and it was 219. I think it's a big difference between 248 and 219.
Went out to buy control solution. None in my area.
Called the WaveSense company, and was told there can be a 20% difference even when retesting immediately.
Says there can be a 40% difference in machine brands.
She is going to send me control solution. In the meantime, I am going to WalMart tomorrow to buy a new meter.
Thing is, how do you trust the numbers? I never had reason to doubt it before.
What do I even put in my spreadsheet... an average of the 3 numbers?
Edited to add: I just found a discussion about this, in posts from Feb 4. Looks like this is normal, between meters, but the same ear, within seconds?
Went out to buy control solution. None in my area.
Called the WaveSense company, and was told there can be a 20% difference even when retesting immediately.
Says there can be a 40% difference in machine brands.
She is going to send me control solution. In the meantime, I am going to WalMart tomorrow to buy a new meter.
Thing is, how do you trust the numbers? I never had reason to doubt it before.
What do I even put in my spreadsheet... an average of the 3 numbers?
Edited to add: I just found a discussion about this, in posts from Feb 4. Looks like this is normal, between meters, but the same ear, within seconds?