The laboratory to which we send our (rare) requests for red cell
transketolase (an assay that required us to send a whole blood sample) has
decided to withdraw the assay from its repertoire. A check on assay finder
revealed 3 labs, all of which require washed red cells (+ haemotocrit
measured in a capillary). Preparing cells is rather more than we wish to do.
I have two questions for list members.
Is there any longer any real clinical value in this assay (or can we
recommend just giving thiamine) ?
If there are good reasons for measuring the enzyme, are there any labs out
there that do it and will accept a whole blood sample; or is this not a good
practice for this assay anyway?
Roberta Goodall
Clinical Biochemistry
North Bristol Trust
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