Vitamin D, 1,25-Dihydroxy (Calcitriol), LC/MS-MS

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Turnaround Time: 3-5 Days
CPT Code:

82652

Test Type: 2 mL Serum (preferred) or plasma, FROZEN
Reference Range:

19.9-79.3 pg/mL

Overview:

Aid in the diagnosis of primary hyperparathyroidism, hypoparathyroidism, pseudohypoparathyroidism, renal osteodystrophy, and vitamin D-resistant rickets.

Collection Details:

Patient Preparation:

Fasting: No

Collection Instructions:

Gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) tube

Serum/plasma must be separated from cells within 45 minutes of venipuncture. Send serum/plasma in a plastic transport tube.

FREEZE

Stability: Room temperature up to 2 days Refrigerated up to 2 days Frozen up to 544 days Freeze/Thaw cycle = 6