Testsealabs Vitamin D Test
Product Specification
| Principle | Chromatographic Immunoassay | Specimen | Fingerstick Whole Blood |
| Reading Time | 15 minutes | QMS Certification | ISO 13485 and MDSAP |
| Storage Temperature | 4-30°C | Shelf life | 2 years |
| Format | Cassette | Specification | 25T |
Intended Use
Vitamin D Test is a rapid chromatographic immunoassay for the semi-quantitative detection of 25- hydroxyvitamin D (25 (OH) D) in human fingerstick whole blood at a cut-off concentration of 30 ± 4ng/mL. This assay provides a preliminary diagnostic test result and can be used to screening for vitamin D deficiency.
Summary
Vitamin D: Key Information & Clinical Significance
Vitamin D refers to a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, iron, magnesium, phosphate and zinc.
In humans, the most important compounds in this group are vitamin D3 and vitamin D2:
- Vitamin D3 is naturally produced in the human skin through exposure to ultraviolet light.
- Vitamin D2 is mainly obtained from foods.
Vitamin D is transported to the liver where it is metabolized to 25-hydroxy vitamin D. In medicine, a 25-hydroxy vitamin D blood test is used to determine vitamin D concentration in the body. The blood concentration of 25-hydroxy vitamin D (including D2 and D3) is considered the best indicator of vitamin D status.
Vitamin D deficiency is now recognized as a global epidemic. Virtually every cell in our body has receptors for vitamin D, meaning that they all require "sufficient" levels of vitamin D for adequate functioning.
The health risks associated with vitamin D deficiency are far more severe than previously thought. Vitamin deficiency has been linked to various serious diseases:
- Osteoporosis & Osteomalacia
- Multiple sclerosis
- Cardiovascular diseases
- Pregnancy complications
- Diabetes
- Depression
- Strokes
- Autoimmune diseases
- Flu & Infectious diseases
- Various cancers
- Alzheimer's disease
- Obesity
- Higher mortality
Therefore, detecting (25-OH) vitamin D levels is now considered a "Medically Necessary Screening Test". Maintaining sufficient levels is essential not just to improve bone health, but to enhance overall health and well-being.



