Hi,
Measurement of total protein can be done using either serum or plasma. The
results are exchangable. In our laboratory we mainly use lithium heparin tubes
(no gel) for routine measurements while total protein and albumin specimens
are collected in serum. When we start to use plasma tube for measuring TP
we have observed a significant difference (4-9 g/L) between serum and
plasma for the same patient. Does anyone observe such problem?
Regards,
Asila AL-Musheifri
Oman
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