Glucometer QC Range
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I am curious if you adjust your manufacture QC ranges for your glucose test strip to 2 or 3 SD ? or do you use the manufacture range? Abbott PXP
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I do change them to 2SD after I get enough data to do so. I guess I really don't have to since it is a CLIA Waived test, but I think it is good lab practice.
We use the manufacturer’s range.
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We also use the manufacturer’s values.
I can tell you that I have done both - reduced my manufacturer's range to actual SD (plus a bit of wiggle room) after accumulating data, but now I simply use the manufacturer's range. I reduced ranges when we used Lifescan SureStepPro but gave up the practice when we went to Abbott Xceed Pro. Here is why:
1. Looking back, I don't know that my old practice of reducing range ever made any impact or improved patient care, per se. And every time I returned a device to the manufacturer because of what I believed to be a problem - the manufacturer could never identify anything wrong with it, according to their specs. Truth be told, there is really no way to differentiate between a device that has a significantly different calibration setpoint (and therefore shouldn't be used) as opposed to simply reflecting the inaccuracy that is inherent to a waived handheld bedside device.
2. Although it may be good lab practice to reduce range, to me that only makes sense if the device is able to be calibrated. If a device cannot be calibrated, your only choice if it does not perform c/w your 2SD range is to remove it/discard it. And again (see #1) you do not know if it is "wrong" or simply recovering a slightly different mean, as all analytical devices will do. It does not seem prudent to discard a device when the technology is known to be less accurate and it is used not to diagnose, but to monitor. You cannot make an device more accurate than what the manufacturer claims.
I would love to see bedside glucose devices recover SDs closer to lab analyzers and I know there is pressure to move them in that direction. But until they do, we cannot make them something they're not.
We use manufacturer's ranges. We review our data monthly to see if 3SD falls within manufacturer's range.
I am away at a conference until August 5. If you have an urgent POC issue, Pauline Kamenyi at 24219 or Meike Talley at 29397 for Sinai or Alana Agustin at 55816 for NW. You can also vocera point of care testing.
Thanks
Joann O'Connor
POCC for Lifebridge Health
joconnor@lifebridgehealth.org
410-601-5673
>>> "Jane Tansiongco via POCT Listserv (Groupsite)" 08/02/16 15:00 >>>
We take the manf. range and tighten it to 2SD. then review and look and 2sd and the manf. 3 sd.
I am away at a conference until August 5. If you have an urgent POC issue, Pauline Kamenyi at 24219 or Meike Talley at 29397 for Sinai or Alana Agustin at 55816 for NW. You can also vocera point of care testing.
Thanks
Joann O'Connor
POCC for Lifebridge Health
joconnor@lifebridgehealth.org
410-601-5673
>>> "Gina Martinelli-Painter via POCT Listserv (Groupsite)" 08/02/16 16:02 >>>