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vitaminsHas Critical Values
Vitamin D (25-OH)
25(OH)D· also: 25-OH D, Vitamin D
Clinical Overview
25-hydroxy Vitamin D is the best test to measure Vitamin D status. Deficiency is extremely common globally and linked to bone disease, immune dysfunction, depression, and cardiovascular disease.
Reference RangesWHO/IFCC standards
| Reference Range | Unit | Notes |
|---|---|---|
| 30 – 100 | ng/mL | Sufficient |
| 20 – 29 | ng/mL | Insufficient |
Also reported in: nmol/L.Conversion factor: 1 nmol/L = 2.500 ng/mL.
Critical (Panic) Values
Critical Low: < 10 ng/mL. Critical High: > 150 ng/mL. Values outside these limits require immediate clinical attention.
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Related Topics
vitamin Dboneimmunitydeficiency