Test Code BHSF Beta-Human Chorionic Gonadotropin, Quantitative, Spinal Fluid
Reporting Name
Chorionic Gonad Beta-Subunit QN,CSFUseful For
Aiding in the diagnosis of brain metastases of testicular cancer or extragonadal intracerebral germ cell tumors
Performing Laboratory

Specimen Type
CSFSpecimen Required
Patient Preparation: For 12 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).
Container/Tube: Sterile vial
Specimen Volume: 1 mL
Collection Instructions: Submit specimen from collection vial number 1.
Specimen Minimum Volume
0.75 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
CSF | Refrigerated (preferred) | 28 days | |
Ambient | 14 days | ||
Frozen | 14 days |
Reference Values
<1.0 IU/L
Day(s) Performed
Monday through Saturday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
84702
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
BHSF | Chorionic Gonad Beta-Subunit QN,CSF | 14041-8 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
BHSF | Chorionic Gonad Beta-Subunit QN,CSF | 14041-8 |
Report Available
1 to 3 daysMethod Name
Electrochemiluminescent Immunoassay (ECLIA)
Forms
If not ordering electronically, complete, print, and send an Oncology Test Request (T729) with the specimen.