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Dear All,
For some time we have asked requestors to send us plain (non-SST, non-PST) samples for TDM (phenytoin, carbamazepine, valproate, theophylline, phenobarbitone and digoxin). This is because of information published some time ago that suggested that some / all of these drug assays can be affected by the presence of the gel in the tubes. Does anyone know if this is still the case for the current generation of blood collection tubes? We’re using plastic BD Vacutainer.
Thanks
Geoff Smith
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Southern Community Laboratories
3rd Floor, Clinical Services Building
Dunedin Hospital
201 Great King St
Dunedin 9016
New Zealand
T: +64 3 470 2921
M: +64 275 545 262
F: +64 3 470 2992
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