Heparin (light green), SST (gold), "T-" labs SST (gold)
0.3 ml Heparin (light green) or Plain(red).
Mon - Fri, 0800 - 1630 excl. Public Holidays
< 35 U/ml
The Choosing Wisely recommendations include the following:
Do not perform serum tumour marker tests except for the monitoring of a cancer known to produce these markers.
The DHB Shared Services
Laboratory Test Referral Guidelines have recommendations for a number of specific tumour markers. They note tumour markers are not indicated for screening of an asymptomatic low risk population, investigation of non-specific symptoms, when the probability of malignancy is low, investigation of other suspected malignancies.
The DHB Shared Services Laboratory Test Referral Guidelines note:
CA 19-9 is elevated in patients with a wide range of malignancies including pancreatic, gastric, colorectal, hepatic and ovarian. It is also elevated in non- malignant disorders such as acute and chronic liver disease, acute and chronic pancreatitis, biliary diseases, diabetes and irritable bowel syndrome. It is most widely used in monitoring pancreatic cancer but is not sufficiently sensitive to be used in screening and not selective enough to be used in diagnosis. It may provide prognostic information at time of diagnosis.
It is indicated for: