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Vitamin A test - Results

Alternative Names

Retinol test

Normal Values:

Normal values range from 50 to 200 micrograms per deciliter.

Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.

What abnormal results mean:

Lower than normal values indicate a vitamin A deficiency, which may be associated with:

  • Developmental aberrations of bones or teeth in young children
  • Dry or inflamed eyes
  • Hair loss
  • Inadequate absorption of fats from the intestinal tract
  • Loss of appetite
  • Malabsorption syndrome (for example, celiac disease, sprue)
  • Night blindness
  • Recurring infections
  • Skin rashes
  • Reviewed last on: 11/15/2009
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Mason JB. Vitamins, trace minerals, and other micronutrients. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, PA: Saunders Elsevier; 2007:chap 237.

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