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Thu, Feb 20 12:32pm · Other causes of failed PEth test for alcohol abuse? in Mental Health

Thanks to what I’m learning here and able to advise others, and from what they read here…

Just watched real time where a THIRD person has a pos dried blood spot test of 59 on Friday, and a negative meaning less than 20 whole blood peth on Monday…

It appears as though Delta airlines has quit using dried blood spot peth tests… waiting for confirmation. If anyone knows of other organizations that have discontinued DBS peth, that would be useful.

It’s all bad, but possibly a step in the right direction.

Sun, Feb 16 8:42am · Other causes of failed PEth test for alcohol abuse? in Mental Health

I’m like you, I’ve had good reasonable cause to sue a couple times in my life but passed… just because I’m not litigious.

Even if these labs are doing this in good faith, they have a duty to know better. It’s a pretty simple fact it’s doing irreparable harm.

For the record, I don’t believe it’s even in good faith.. I just can’t wrap my head around them being that blind.

Sat, Feb 15 7:37am · Other causes of failed PEth test for alcohol abuse? in Mental Health

That is good advice. However, if the problem is preanalytical, it will likely be positive if retested.

I was not given a chance to retest the same sample, so that datapoint is lost.

So if a retest is positive, it still does not confirm drinking. It seems another type of test altogether, CDT maybe, starts to paint a better picture. Probably also good is an assessment by a shrink.

Thu, Feb 6 6:29am · Other causes of failed PEth test for alcohol abuse? in Mental Health

Doc Langan, in addition to being a Doc, has studied this stuff for like ten plus years.

We had a discussion yesterday about the kinds of things necessary to get FDA approval. There seems little to no doubt the reason it isn’t FDA approved is that it’s so patently obvious it’s not worth the time and money, it won’t make the grade.

The guys who brought this to market *should* know this. That’s why it’s very existence and use is unethical. Us as, well, victims, expect a reasonable standard of care… we don’t know better and rely on these people.

It’s like we’re living in a third world country.

Tue, Feb 4 6:36pm · Other causes of failed PEth test for alcohol abuse? in Mental Health

I agree completely… shouldn’t have ever gone down like it did.

For what it’s worth it comes across as a genuine epiphany. He charges less than 20% the going rate, had a complete report to me in about 2 or 3 weeks (other expert reports less well written and researched took over 6 months and continuous nagging), follows up, returns calls, and is exceedingly professional and thorough.

I’ve been in both sides of an issue before. The perspective gained from that is unique. So I don’t consider it a deal breaker.

The opinion I offer here is from first hand experience.

Tue, Feb 4 6:56am · Other causes of failed PEth test for alcohol abuse? in Mental Health

In skippers case, he seems to realize this and is at least helping now. Too late? depends on your point of view.

I have found a lab that is interested in helping me with a study to at least validate one cause of false positives in DBS PETH. It’s a start…

The pattern of getting a false positive near the end of a five year contract seems to be inevitable math… all the evidence one really needs is sitting there in plain sight.

I’ve found that these boards all want a “viable explanation” which is usually some form of incidental exposure that is unique to the individual. Not much interested in an explanation that applies to everyone.

So knowing EXACTLY what is happening is critical, so it can be uniquely associated.

Wed, Jan 29 9:40am · Other causes of failed PEth test for alcohol abuse? in Mental Health

Peth testing is simply not well enough understood to stand on its own. It seems to have value in context with EVERYTHING else, just like they say.

Unfortunately there simply aren’t any appropriate studies yet. I’m working on that…

There are plenty of expert opinions available saying just this, and even opinions that false positives exist. There just aren’t studies showing the precise reason why…

Conversely, there aren’t studies showing peth testing is immune to error, merely empty statements that it’s only possible to get a positive test if you’ve been drinking.

I do believe the statement that peth is only formed if ethyl alcohol is present is likely accurate. However, where that alcohol comes from is highly debatable. To have SOME present is NOT a foolproof indicator of drinking, and I even believe the dried blood spot method of blood collection allows for post collection synthesis of alcohol itself.

Dried blood spot collection of blood is fraught with all sorts of problems, as evidenced by finger prick blood sugar devices.

Contact me offline if you want more info.