Ordering Recommendation
Mnemonic
BHCG CSF
Methodology

Quantitative Electrochemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

CSF. Also acceptable: CSF collected in plain red or green (sodium or lithium heparin).

Specimen Preparation

Transfer 0.5 mL CSF to an ARUP Standard Transport Tube. (Min: 0.3 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Any other body fluids.

Remarks
Stability

Ambient: 5 days; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval

18 years and older: 0-3 IU/L

Interpretive Data

Interpretive Data: 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. Although this assay is FDA cleared for use in the detection of pregnancy, it is not labeled for use as a tumor marker or with CSF specimens. The performance characteristics of this assay were determined by ARUP.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

84702

Components
Component Test Code* Component Chart Name LOINC
0020730 Beta-hCG, CSF Quant (Tumor Marker) 14041-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Beta-HCG CSF concentration
  • Beta-HCG CSF levels
  • Beta-HCG, CSF
  • human chorioinic gonadotropin, CSF
Beta-hCG, Quantitative (Tumor Marker), CSF