Vitamin D (25-Hydroxy D2 & D3 Fractionated)

$280.99

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25-Hydroxy Vitamin D is a crucial test to measure your body's overall vitamin D status. This comprehensive assay provides specific results for both 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3, giving you a detailed understanding of your vitamin D levels. Vitamin D is essential for maintaining strong bones, regulating calcium and phosphate levels, and supporting immune system function. This test utilizes advanced Liquid Chromatography/Tandem Mass Spectrometry (LC/MS-MS) methodology for high accuracy.

Quick facts

Sample type

Serum (preferred) or plasma

Turnaround

2–4 business days

Fasting

No Fasting Required

Doctor’s order included

Licensed physician review and requisition included with every test.

Vitamin D (25-Hydroxy D2 & D3 Fractionated)

  • Vitamins & Nutrition
  • Bone Health
  • General Health & Wellness
  • Cpt Codes
    • 82306

    what is Vitamin D (25-Hydroxy D2 & D3 Fractionated) and why is it important?

    25-Hydroxy Vitamin D is a crucial test to measure your body's overall vitamin D status. This comprehensive assay provides specific results for both 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3, giving you a detailed understanding of your vitamin D levels. Vitamin D is essential for maintaining strong bones, regulating calcium and phosphate levels, and supporting immune system function. This test utilizes advanced Liquid Chromatography/Tandem Mass Spectrometry (LC/MS-MS) methodology for high accuracy.

    Consider the 25-Hydroxy Vitamin D (D2+D3 Fractionated) test if you:

    • Are experiencing symptoms such as bone pain, muscle weakness, frequent fractures, or general fatigue.
    • Have been diagnosed with conditions like osteoporosis or osteopenia.
    • Have risk factors for Vitamin D deficiency, such as limited sun exposure, certain medical conditions, or dietary restrictions.
    • Are currently taking Vitamin D supplements and need to monitor your levels to ensure they are adequate and safe.
    • Wish to include it as part of a routine wellness check, especially if you are at higher risk for deficiency.
    • Have a history of falls or unexplained musculoskeletal pain.

    The 25-Hydroxy Vitamin D (D2+D3 Fractionated) test benefits various individuals, including:

    • Individuals with limited sun exposure, such as those who spend most of their time indoors, use extensive sunscreen, or reside in regions with reduced sunlight.
    • Older adults, as the skin's efficiency in synthesizing Vitamin D naturally declines with age.
    • People with conditions affecting nutrient absorption, such as Crohn's disease, celiac disease, cystic fibrosis, or individuals who have undergone bariatric surgery.
    • Individuals with obesity, as higher body fat can sequester Vitamin D, reducing its bioavailability in the bloodstream.
    • Those with certain medical conditions like osteoporosis, chronic kidney disease, hyperparathyroidism, or specific autoimmune diseases.
    • Anyone experiencing unexplained fatigue, muscle weakness, or bone pain, which could indicate Vitamin D deficiency.
    • Individuals taking medications known to influence Vitamin D metabolism, including certain anti-seizure drugs or corticosteroids.
    • Vegetarians and vegans, who may have fewer dietary sources of Vitamin D.

    The 25-Hydroxy Vitamin D (D2+D3 Fractionated) test is commonly used to aid in the diagnosis and management of various conditions linked to vitamin D status. These include:

    • Osteoporosis and Osteopenia: Essential for assessing bone health and identifying deficiency contributing to weakened bones.
    • Rickets in children and Osteomalacia in adults: Critical for diagnosing these bone-softening disorders caused by severe vitamin D deficiency.
    • Hypocalcemia: Helps investigate the underlying cause of low blood calcium levels.
    • Secondary Hyperparathyroidism: Often used to evaluate this condition, which can arise as a compensatory mechanism for prolonged low vitamin D levels.
    • Malabsorption Syndromes: Useful for individuals with conditions such as Crohn's disease, celiac disease, or cystic fibrosis that impair vitamin D absorption.
    • Unexplained muscle weakness, bone pain, or fatigue: As these can be symptoms of vitamin D inadequacy.
    • Monitoring individuals with chronic kidney disease or those on certain medications that affect vitamin D metabolism.

    Caution

    It is crucial to consult with a healthcare provider to interpret your test results. They can assess the findings within the context of your overall health, symptoms, and medical history. Self-interpreting results or attempting self-treatment based solely on test outcomes is not recommended and could be harmful.

    How It Works?

    1
    Add Your Test to Cart and Check out

    once Test Order is received, Our physicians will review your request and email you the easy-to-follow requisition form.


    2
    Locate and Visit Your Nearest Laboratory

    Find the closest partner location—most are within 2–3 miles—and drop by for a quick, no‑appointment blood draw.


    3
    Get your Results Online

    Once your sample is processed, we’ll send your report straight to your inbox within 1–3 business days. Just click the link to view your results anytime.


    4
    Book a Optional Consult

    Have Questions about results? Book a phone or video visit with one of our doctors. They’ll walk you through your report, explain any findings, and recommend next steps