One 6 mL plain red.
Frozen samples are also acceptable.
Sample may be drawn using a SST tube only if serum is removed immediately following centrifugation. Immulite 2000 CEA chemiluminescent immunoenzymetric method is used. Results obtained with different assay methods or kits cannot be used interchangeably. Measurement of CEA has been shown to be clinically relevant in the management of patients with colorectal, breast, lung, prostatic, pancreatic and ovarian carcinomas. The CEA assay value, regardless of level, should not be interpreted as evidence for the presence or absence of malignant disease and is not recommended for use as a screening procedure to detect the presence of cancer in the general population.