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Laboratory: Clinical Biochemistry
Test Name:
Test Code: MISC
Clinical Information:
Test Indications: This test is used for the diagnosis and management of intracranial germ cell tumors.
Recommendations: An Update on the Clinical Diagnostic Value of Beta-HCG and AFP for Intracranial Germ Cell Tumors. Eur J Med Res 2016, 21:10
Patient Preparation Instructions: Multivitamins (45–125 µg biotin) or biotin-only supplements up to 1 mg per day do not interfere with this test. Samples should not be taken from patients receiving therapy with high biotin doses (i.e. >5 mg/day) until at least 8 hours after the last dose.
Collection Devices:
Specimen Required: Cerebrospinal Fluid:  1.0 mL
Freeze fluid if testing cannot be performed within 24 hours of collection.
Stability 3 days refrigerated, 7 days frozen

Samples must be transferred to an aliquot tube and stored frozen if analysis will not be complete within 48 hours (#110-10-05 Serum / Plasma Separation Procedure & Transport)
Reference Values:
≤ 1.5 IU/L
Daily or Stat
See Also:
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