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Has anyone checked these tubes for endocrine tests + GENERAL CHEMISTRY.

bharat

                -----Original Message-----
                From:   Dr Bhushan Kapur [mailto:[log in to unmask]]
                Sent:   Wednesday, February 13, 2002 11:27 PM
                To:     [log in to unmask]
                Subject:        Re: Vacutainer SST II

                We have looked at serum methadone levels and these are lower
in SST tubes.

                bhushan
                ---

                At 05:05 PM 02-06-2002 +0000, Wayne Bradbury wrote:
                >Our Becton-Dickinson representive has told us about their
new Vacutainer
                >serum separator tubes (SST II, with a white gel) which are
not supposed to
                >absorb certain drugs.
                >
                >We currently use plastic SST's (yellow gel) but do not
accept these for
                >phenytoin, carbamazepine, progesterone and some other
analytes because
                >of the problem of absorbtion by the gel.
                >
                >B-D can only supply me with information on the "top 20"
tests and I can find
                >little in the literature specifically relating to the
effect of SST II's.
                >
                >Has anyone out there checked out SST II's (glass or
plastic), particularly
                >for the more esoteric tests such as drugs and hormones?
                >
                >Mr WH Bradbury
                >Consultant Biochemist
                >Cumberland Infirmary
                >Carlisle
                >
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                bhushan

______________________________________________________________
                Dr. Bhushan M. Kapur, D.Phil, C.Chem, FRSC, FACB, FCACB
                [log in to unmask]; [log in to unmask]
                Assistant Professor of Clinical Biochemistry
                Department of Laboratory Medicine and Pathobiology
                Faculty of Medicine, University of Toronto
                &
                Diagnostic Laboratories, St. Michael's Hospital and
                Division of Clinical Pharmacology and Toxicology
                The Hospital for Sick Children
                homepage: http://www.clinitox.com

______________________________________________________________

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