Beta-Human Chorionic Gonadotropin, Quantitative, Spinal Fluid

Test Code

69484

CPT Codes
86316

Preferred Specimen

1 mL CSF collected in a sterile leak-proof container

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 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

Setup Schedule

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

Reference Range

≤1.0 IU/L

Clinical Significance

Test is used to facilitate the diagnosis of brain metastases of testicular cancer or extragonadal intracerebral germ cell tumors.

Performing Laboratory
Mayo Clinic Laboratories
200 First Street SW
Rochester, MN 55905

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.