Quote from: obsidianom on August 30, 2014, 12:41:58 PMHow many of you even knew the following_---THIS IS FROM THE MAYO CLINIC.Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substancesFailure to pay attention to proper specimen collection procedures can cause abnormal results due to specimen contamination, which can lead to misinterpretation and misdiagnosis:-Special evacuated blood collection tubes are required for aluminum testing.(4) These tubes are readily available (Mayo Medical Laboratories Supply T184) and should always be used.-Most of the common evacuated blood collection devices have rubber stoppers that are comprised of aluminum-silicate. Simple puncture of the rubber stopper for blood collection is sufficient to contaminate the specimen with aluminum. Typically, blood drawn in standard evacuated blood tubes will be contaminated by 20 to 60 ng/mL aluminumMaybe most everyone (yourself excluded) who kept up with the SAK RECALL thread? http://ihatedialysis.com/forum/index.php?topic=31141.msg485340#msg485340http://ihatedialysis.com/forum/index.php?topic=31141.msg485408#msg485408
How many of you even knew the following_---THIS IS FROM THE MAYO CLINIC.Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substancesFailure to pay attention to proper specimen collection procedures can cause abnormal results due to specimen contamination, which can lead to misinterpretation and misdiagnosis:-Special evacuated blood collection tubes are required for aluminum testing.(4) These tubes are readily available (Mayo Medical Laboratories Supply T184) and should always be used.-Most of the common evacuated blood collection devices have rubber stoppers that are comprised of aluminum-silicate. Simple puncture of the rubber stopper for blood collection is sufficient to contaminate the specimen with aluminum. Typically, blood drawn in standard evacuated blood tubes will be contaminated by 20 to 60 ng/mL aluminum
I was convinced it was a sampling issue as well but the in-center FMC patients all had good AL levels. Only us NxStage users had the high AL. Both were using the same blue top trace metal tubes out of the same case. This really has been frustrating.
Was 13 pre-recall; am 10 3 months post-recall. The FMC center I used is testing all SAK users 3 months after getting rid of the problem saks, and routinely does it every January.
WE are switching to bags this weekend. I have an order of 75 boxes coming for all the bags for a month. Not happy about it but worht trying as my wifes aluminum is still up. Its weird because everyone else in our area has aluminum dropping back to normal on Nxstage with the Pureflow. For some reason my wife is still way up. So I decided to try the bags for a month and see what happens. I was able to hang 5 bags on the holder and 1 Bag on the warmer . It is cumbersome but works. We will see.
Actually, there are some very well done studies, most not in the US for some unknown reason, sigh. Here is one that is VERY important. It shows that dialysate with more than 3 mcg/liter results in accumulation of aluminum in the tissues. This article written in 1998 has largely been ignored and certainly ignored by the K/DOQI guideline committees dealing with these issues.http://ndt.oxfordjournals.org/content/13/suppl_3/78.full.pdfWhen the dialysate has 3 mcg/liter or less, then aluminum levels fall in dialysis patients. The interesting aspect of this article is how dialysate levels correlated with serum levels in the patientOnce again, there is no safe level of aluminum for dialysis patients.
On another note as I watch the bags hanging today, the cleaning kit worked wonders. I ran it through as directed yesterday(quite easy) and today the drain line no longer smells bad. Thats a nice surprise. They should have done this sooner. Its going to be every 3 months now.
I probably missed it, but why was the Al in the dialysate again? Couldn't it be filtered out?