Beta-Human Chorionic Gonadotropin, Quantitative, Spinal Fluid

Test Code

37622

CPT Codes
84702

Preferred Specimen

1 mL CSF collected in a sterile vial

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.

Minimum Volume

0.75 mL

Transport Container

Sterile vial

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 14 days
Refrigerated: 28 days
Frozen: 14 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis

Methodology
Electrochemiluminescent Immunoassay

FDA Status
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.

Setup Schedule

Set up: Mon-Sat; Report available: 1-3 days

Reference Range

≤ 1.0 IU/L

Clinical Significance

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

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.