Test

1,25 Di Hydroxy Vitamin D

₹5,000 ₹3,299
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Also Known As

No data available

Test Parameters Included

  • Serum 1,25-dihydroxyvitamin D Concentration (pg/mL) - active vitamin D metabolite
  • Pathologist Clinical Biochemistry Remark - interpreted alongside calcium, phosphorus, and PTH levels
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Department

CLINICAL BIOCHEMISTRY

Methodology

ELISA

Sample Required

SERUM (1ML)

Preparation

You may be required to fast for about eight hours before your Vitamin D3 Test blood sample is collected. If you are taking any medications or supplements, then you have to discuss them with your docto
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Schedule Report

24 Hours

Emergency Report

Yes

Frequently Asked Questions

Why is 1,25-dihydroxyvitamin D different from vitamin D3 supplement?

Vitamin D3 (cholecalciferol) is the precursor, while 1,25-dihydroxyvitamin D is the active hormonal form produced by kidneys. Supplementation raises 25-OH vitamin D, not necessarily 1,25-OH2D.

Who needs this test instead of 25-OH vitamin D?

Patients with kidney disease, hyperparathyroidism, or granulomatous disorders like sarcoidosis. Kidney impairment reduces conversion to active form despite adequate vitamin D stores.

Does fasting affect 1,25-dihydroxyvitamin D levels?

No, fasting is not required. This hormone is stable and can be measured at any time of day.

What causes low 1,25-dihydroxyvitamin D?

Chronic kidney disease is the most common cause, as damaged kidneys cannot hydroxylate vitamin D to its active form. Vitamin D deficiency and hypoparathyroidism also lower levels.

Can high 1,25-dihydroxyvitamin D be dangerous?

Yes, elevated levels cause hypercalcemia, leading to nausea, confusion, kidney stones, and vascular calcification. Granulomatous diseases and lymphomas can overproduce active vitamin D.

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Test Description

1,25 Di Hydroxy Vitamin D Examination Purpose Diagnosing conditions related to vitamin D metabolism or bone disordersMonitoring kidney problemsFindin... Read more

Test Code

D01

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