Test Panels

Carcinoembryonic Antigen (CEA)

Overview of Test

Quantitative determination of CEA levels in human serum. This testing is used as an aid in managing the treatment of cancer patient who have been observed with CEA concentration changes.

Author

Kathryn

Specimen Types

Serum

Test Number

2645

Expected Turn Around Time

1 Day

CPT Codes

82378

Special Instructions

If collecting in a plain red top, allow specimen to clot in the upright position for at least 60 minutes. Centrifuge the sample and transfer the serum to an aliquot tube without disturbing the cells within 2 hours of collection. Clearly label the aliquot tube as serum from a plain red top tube. Refrigerate.

Preferred Volume

2 mL

Minimum Volume

1 mL

Collection Container or Device

Serum Separator Tube (Preferred); Red Top (Alternative)

Collection Instructions Attached

No collection instructions attached

Storage Details/ Stability Requirements

Temperature
Room Temp: (15-30°C)
Refrigeration: (2-8°C)
Time Period
8 hours
48 hours

Transport Requirements

Refrigerated

Causes For Rejection

Gross hemolysis; Incorrect tube

Methodology

Two-site immunoenzymatic (‘sandwich”) assay; Chemiluminescent substrate

Collection Instructions If Written

Allow SST to clot in the upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Refrigerate.

Department

Blood

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