Beta-hCG, Quantitative (Tumor Marker), CSF




Test Mnemonic

HCGCSF

CPT Codes

  • 84702 - QTY (1)

Aliases

  • human chorionic gonadotropin, CSF

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mLCerebrospinal fluid (CSF)Clean container Refrigerated 

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mLCerebrospinal fluid (CSF)Lithium heparin (Green) Refrigerated 
0.5 mLCerebrospinal fluid (CSF)No additive (Red) Refrigerated 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.3 mL     

Stability

Environmental Condition Description
Refrigerated2 weeks
Ambient5 days
Frozen1 year

Days Performed

Sun - Sat

Turnaround Time

2 - 3 days

Methodology

Name Description
Electro Chemiluminescence Immunoassay (ECLIA) 

Special Info

Body fluids other than CSF will be rejected. This test is New York DOH approved.

Clinical Info

Human chorionic gonadotropin (hCG) is a valuable aid in the management of patients with trophoblastic tumors, nonseminomatous testicular tumors, and seminomas when used in conjunction with information available from the clinical evaluation and other diagnostic procedures. Increased hCG concentrations have also been observed in melanoma, carcinomas of the breast, gastrointestinal tract, lung, and ovaries, and in benign conditions including cirrhosis, duodenal ulcer, and inflammatory bowel disease. The result cannot be interpreted as absolute evidence of the presence or absence of malignant disease. The result is not interpretable as a tumor marker in pregnant females. The combination of the specific monoclonal antibodies used in the Roche Beta HCG electrochemiluminescent immunoassay recognize the holo-hormone, "nicked" forms of hCG, the beta-core fragment, and the free beta-subunit. Results obtained with different test methods or kits cannot be used interchangeably.