Sign in →

Test Code BHSF Beta-Human Chorionic Gonadotropin, Quantitative, Spinal Fluid


Specimen Required


Patient Preparation: For 12 hours before specimen collection, do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.

Container/Tube: Sterile vial

Specimen Volume: 1 mL

Collection Instructions: Submit specimen from collection vial 1.


Children's Mercy Hospital Note:

CMH COLLECTION: 0.5 mL in sterile cup

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

Useful For

Aiding in the diagnosis of brain metastases of testicular cancer or extragonadal intracerebral germ cell tumors

Reject Due To

Hemolysis Reject

Day(s) Performed

Monday through Saturday

Report Available

1 to 3 days

Reporting Name

Chorionic Gonad Beta-Subunit QN,CSF

Reference Values

<1.0 IU/L

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

84702