Our experience was that if EDTA or Citrate are in liquid form, contamination
of the U/E sample is possible, if EDTA or citrate is in powder form,
contamination is a lot less likely, but can occur.
Presumably it is dependent on the needle coming into contact with a small
liquid globule, or a small particle of the dried powder and may reflect how
the tubes were stored.
____________________________________________________________
Dr. Helen Grimes, Dept. of Clinical Biochemistry, UCH, Galway, Ireland
------ACB discussion List Information--------
This is an open discussion list for the academic and clinical
community working in clinical biochemistry.
Please note, archived messages are public and can be viewed
via the internet. Views expressed are those of the individual and
they are responsible for all message content.
ACB Web Site
http://www.acb.org.uk
List Archives
http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html
List Instructions (How to leave etc.)
http://www.jiscmail.ac.uk/
|