Laboratory: | Clinical Biochemistry (SENDOUTS) | ||||
Test Name: |
VITAMIN D (1,25-DIHYDROXY) - (S)
Test Code:
D125
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Clinical Information: |
Alternate Name(s): Calcitriol, 1,25-Hydroxy Vitamin D; 1,25-Dihydroxyvitamin D
Test Indications: This test is not appropriate for diagnosing vitamin D deficiency or insufficiency. For this purpose, see: VITAMIN D (25-HYDROXY) - (S)
1,25-OH vitamin D should only be ordered in the following clinical conditions: 1) Clinical evidence of vitamin D deficiency due to hereditary deficiency of renal 1-alpha hydroxylase or end-organ resistance to 1,25-dihydroxy vitamin D.
Test Approval Requirements: F260-11-02 Biochemistry Approval for Test Referral Form This test is available without approval to Endocrinologist and Nephrologist only. All other requests must be approved by a clinical biochemist using the designated test approval form.
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Collection Devices: |
Serum GEL tubes and BarricorTM tubes are not acceptable.
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Specimen Required: |
Serum: 2.0 mL
Pediatric Serum: 1.0 mL
Specimen Stability: Ambient: 2 days Refrigerated: 14 days Frozen: >1 year |
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Referral: |
Shipping & Storage: Separate and freeze as soon as possible. Store and send frozen.
Referred Out Location: Specimen referred from HSC-MS5 to: |
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Requisition: | |||||
Reference Values: |
Reference Intervals: 48 – 190 pmol/L
Method of Analysis: DiaSorin Chemiluminescence |
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Availability: |
Within 2 Weeks
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See Also: | |||||
More Information: |