Laboratory Quality: words or rhetoric?
This month the Infectious Diseases Society of America
published a new article (A Guide to
Utilization of the Microbiology Laboratory for Diagnosis of Infectious
Diseases: 2013 Recommendations by the Infectious Diseases Society of America
(IDSA) and the American Society for Microbiology (ASM)) in the journal
Clinical Infectious Diseases. It is an impressive document and for those
interested in laboratory medicine, and clinical microbiology and laboratory
diagnosis to assist infectious diseases, it is an impressive document. It is about 100 pages long and includes 250
references, so it would be fair to call it comprehensive.
It was an impressive task to compile all this information
and put it together in a single comprehensive manuscript. The authors should be congratulated.
Unfortunately, despite all these positives and kudos, it
not only misses the bull’s eye, in my opinion it by-and-large misses the whole
target.
The shame of the matter, is that the authors
are all very well know and well respected microbiologists in the clinical
laboratory community; and they know what the target is, or at least should
be. They say right up front “Physicians
need confidence that the results provided by the microbiology laboratory are
accurate, significant, and clinically relevant. Anything less is below the
community standard of care.” And they are bang-on. I agree entirely.
So what is their plan to ensure that
laboratory results meet those criteria; their answer is that “all microbiology
specimens be properly selected, collected, and transported to optimize analysis
and interpretation.” The problem is that
this is just far enough off to be misleading and misguided.
Don’t get me wrong, I think that collection
and transport of clinical samples is important, indeed very important. And if you want a document to help with
clinical sample collection and transport, you can consider this manuscript, or better,
look at the Canadian Standards Association document “Z316.7-12 - Primary sample collection facilities and medical
laboratories - Patient safety and quality of care - Requirements for
collecting, transporting, and storing samples”, which I think is eminently readable and applicable.
Where we diverge
from the value of the IDSA article, is that even if the sample is collected and
transported properly, that does not ensure that it will be processed properly
or accurately, or that the results reported in the clinical report will be
significant or clinically relevant.
While it is true
that many, indeed most REPORTED laboratory errors are derived from the
pre-examination phase and it is also true that testing accuracy and significance
are affected by specimen quality, it is also true that testing, interpretation are
influenced largely by laboratorian practice and competency as is the ability to
generate a clinically relevant report. We
know that from data generated from our proficiency testing program over the
last 10 years.
In the table below, you can see performance of advanced laboratories (Blue), intermediate (Red), small (Silver) and very small (Green).
Creating a manuscript
that says all the problems are caused by improper collection and transport is
an easy out. “It’s not my problem, it’s
not my fault. Those guys who collected
the sample did it wrong.” “And if they
don’t understand my report structure or my report content or my report jargon,
that’s their fault too. “ “The problem
isn’t me. I know what I’m doing. It’s all those other guys (i.e. you!) who are
the problem.” “Trust me, trust me.”
It speaks to the
mindset of the authors when the word “Accreditation” is found in a 100 page
(about 10,000 word) document only once, and this is in a footnote. The word “proficiency” is similarly found
only once, and not in the context of proficiency testing. And the word “competency” is not found at
all, nor is the phrase “quality management”.
If clinicians are
going to have the confidence that laboratory results are accurate, clinically
relevant, and significant we need to be able to document in a public fashion
that we laboratorians take these issues seriously and that we undertake the
necessary steps to ensure through qualified external assessment that our leadership
and sample management and competence and knowledge and proficiency are active
and intact.
PS: The October in Vancouver Conference for Medical Laboratory Quality is coming along nicely. Hotel space is filling up well. I suspect we will have more registrations than rooms at the convention rate.
For additional information see: http://polqm.ca/conference_2013/conference_2013/conference_home.html