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CARCINOEMBRYONIC ANTIGEN

Mnemonic

CEA

Synonym

CEA

Specimen Collection Requirements

Collect

Serum, one 5.0 mL gold (SST) or 7.0 mL red top tube

Handling

Allow serum tubes to clot completely at room temperature (minimum - SST: 30 minutes, red top tubes: 60 minutes). Centrifuge and separate serum from cells ASAP.

Preferred Volume

1.0 mL Serum

Minimum Volume

0.3 mL Serum (0.8 mL minimum whole blood draw)

Transport

Frozen (≤ -20°C)

Rejection Criteria

Grossly hemolyzed or plasma specimens

Stability

AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (≤ -20°C): 2 months

Testing Information

Performed

Mon, Wed, Fri

Reported

24-72 hours

Method

Chemiluminescent Immunoassay

Reference Values

Reference Values

Non-Smokers:     0.0-2.5 ng/mL
Smokers:              0.0-5.0 ng/mL

Comments

Series report for repeat testing.

CPT Codes

82378

Last Updated: Thursday, January 5, 2017 03:40:43 AM


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