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Vitamin D3

Vitamin D3 is a laboratory test that measures a result in a Blood (Serum) sample. It may be ordered to investigate symptoms, support a diagnosis or monitor a condition, depending on your clinician's advice.

Vitamin D3 Test Info & Procedure

Group NameWellness
FastingFasting not required
Sample TypeBlood (Serum)
Sample CollectionHome sample collection
ReportsMost reports: 24–48 hours after the sample reaches the lab; timing varies by test.
Report typeDigital report

Vitamin D3 Test Visual Guide

Reviews vitamin D3-related status for bone, muscle and deficiency assessment.

Technician collecting a blood sample from a woman at home

Download Vitamin D3 Test Visual Guide infographic (PNG)

ResultReported in lab units.
What it showsCurrent vitamin D signal.
SampleSerum. No fasting required.
Common useVitamin D deficiency review.

How Vitamin D3 Works

  1. Sunlight/diet sourceD3 enters body
  2. Stored as 25-OH DUsual status marker
  3. Bone balance reviewedCalcium pathway linked

Typical result context

Result contextGuide
Lowdeficiency context
Adequatelab target based
Highsupplement review

Vitamin D interpretation depends on the exact form tested and lab method.

Why it may be advised

  • Deficiency screen
  • Bone health context
  • Supplement monitoring

When to discuss it

  • Low sun exposure
  • Bone/muscle aches
  • Supplement users needing review

Often reviewed with

  • 25-OH vitamin D
  • Calcium
  • PTH

Simple Testing Flow

  1. BookSelect Vitamin D3 test online
  2. Home VisitCollection executive arrives
  3. SampleSample collected as instructed
  4. Lab ReportProcessed and shared digitally

No fasting

  • Usually no fasting
  • Share supplement dose

May affect result

  • Recent supplements
  • Sunlight exposure
  • Absorption issues

Form specific

  • Confirm exact report marker
  • 25-OH D is common status test

About the Test

The current booking price is shown at Rs. 1899 against an MRP of Rs. 2499, inclusive of taxes where applicable.

No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions. Home sample collection is available in serviceable cities. A trained phlebotomist collects the sample using sterile equipment, and the report is shared online after processing.


Active Vitamin D Reference Guide

Reference ranges vary by laboratory and method. Use the range printed on your final report. The information below is educational only.

General Educational Range (Not a Report Range)

MeasureTypical guideNote
Result unitpg/mLUse the reference range printed on your final report.
High 1,25-DAbove lab rangeMay relate to granulomatous disease, lymphoma or calcium/PTH context.
Low 1,25-DBelow lab rangeMay relate to kidney or parathyroid context.

Why This Test Is Ordered

ReasonDescription
Active hormone form1,25-dihydroxy vitamin D is the active hormone form.
Calcium/PTH workupUsed when calcium, phosphorus or PTH patterns are unclear.
Kidney contextKidneys help convert vitamin D to active form.

Symptoms And Who Should Test

SituationDescription
Symptoms/contextAbnormal calcium, bone issues, kidney disease, granulomatous disease review.
Risk contextCKD, parathyroid disease, unexplained high calcium.
Follow-up usersPeople under endocrine/nephrology care.

Preparation And Interpretation Notes

TopicGuidance
FastingNo fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions.
Do not confuse25-OH vitamin D is the usual deficiency test; 1,25-D answers different questions.
InterpretationRead with calcium, phosphorus, PTH and kidney function.

Home sample collection for Vitamin D3 is available in the cities below, subject to confirmation of your pincode at booking.

Check all cities where service is available →

Vitamin D3 Test Price

Test conducted by Thyrocare partner laboratory Thyrocare Technologies Limited
Thyrocare partner laboratory
Rs. 2,499
Rs.1,899 24% Off
Free Home Sample Collection
Pay after sample collection
CAP Accredited NABL Accredited UKAS Management Systems ANAB Accredited

Why Choose Thyrocare for Vitamin D3

Review the preparation guidance, sample type, home collection availability and report information before booking Vitamin D3. The final collection and reporting details are confirmed during booking.
Home sample collection for diagnostic testing

Home Based & Quality Diagnostics
at an Unbeatable Price


Carefully designed Tests to provide you with the most vital information for your health.

Convenient Home Based

Affordable — Book Online

Certified Labs — NABL, CAP, ISO

Graphical Reports Online

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Laboratory Processing

Your sample is collected by a trained phlebotomist and sent to the partner laboratory for analysis. The laboratory processes the sample using its validated procedures and quality controls. Your final report shows the result, unit and reference range used for that test. Discuss an unexpected or abnormal result with your clinician.