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HelpTest Code BHSF Beta-Human Chorionic Gonadotropin, Quantitative, Spinal Fluid
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
CSFSpecimen 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.
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
CPT Code Information
84702
Report Available
1 to 3 daysSpecimen Retention Time
14 daysReject Due To
| Hemolysis | Reject |