Compare - Vitamin D Test (EW)

The Compare - Vitamin D Test (EW) test contains 1 test with 4 biomarkers.

Why pay $49 for Everlywell's Vitamin D finger prick test kit when you can experience the convenience and affordablity of a Vitamin D lab test with Ulta Lab Tests - compare now and save!

Brief Description: The Vitamin D Lab Test, also known as the 25-Hydroxyvitamin D Test, is a diagnostic assessment used to measure the levels of various forms of vitamin D in the blood. Vitamin D is essential for the body's overall health, particularly for bone health, immune function, and maintaining normal calcium levels.

Also Known As: Ergocalciferol Test, Vitamin D2 Test, Cholecalciferol Test, Vitamin D3 Test, Calcidiol Test, 25-hydroxyvitamin D Test, Calcifidiol Test, 25-hydroxy-vitamin D Test, Vitamin D Total Test

Collection Method: Blood Draw

Specimen Type: Serum

Test Preparation: Fasting preferred, but not required.

When and Why the Vitamin D Test May Be Ordered

Timing of the Test: The Vitamin D Test may be ordered when there is a clinical suspicion of vitamin D deficiency or to monitor vitamin D levels in certain medical conditions.

Reasons for Ordering the Test:

  1. Assessment of Vitamin D Status: It is commonly ordered to assess an individual's vitamin D status, especially if they exhibit symptoms of deficiency or are at risk due to factors like limited sun exposure, aging, or certain medical conditions.

  2. Bone Health Evaluation: Healthcare providers may order this test when evaluating bone-related issues such as osteoporosis, osteopenia, or unexplained fractures since vitamin D plays a vital role in calcium absorption and bone mineralization.

  3. Monitoring Chronic Diseases: In cases where patients have chronic diseases like kidney disease or malabsorption disorders, the test can help monitor vitamin D levels as these conditions may affect vitamin D metabolism.

  4. Guidance for Supplementation: The results can guide healthcare providers in recommending appropriate vitamin D supplementation to correct deficiencies.

What the Vitamin D Test Checks For

The Vitamin D Lab Test assesses the levels of two primary forms of vitamin D:

  1. 25-Hydroxyvitamin D Total: This form represents the total amount of circulating vitamin D in the blood, including both vitamin D2 and vitamin D3.

  2. 25-Hydroxyvitamin D2 and 25-Hydroxyvitamin D3: These subcomponents specifically quantify the levels of vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol), which are the two major forms of vitamin D in the body. Vitamin D2 is obtained from dietary sources and supplements, while vitamin D3 is synthesized in the skin upon exposure to sunlight.

How Health Care Providers Use the Results of the Vitamin D Test

The results of the Vitamin D Lab Test are used by healthcare providers to:

  1. Assess Vitamin D Status: The test helps determine whether an individual has an adequate, insufficient, or deficient level of vitamin D.

  2. Guide Treatment: In cases of vitamin D deficiency or insufficiency, healthcare providers may recommend vitamin D supplementation to restore normal levels. The choice of supplementation and dosages are influenced by the test results.

  3. Evaluate Bone Health: For patients with bone-related conditions, such as osteoporosis or osteopenia, the test results can aid in assessing the contribution of vitamin D deficiency to these conditions and guide treatment decisions.

  4. Monitor Chronic Diseases: In patients with chronic illnesses that may affect vitamin D metabolism, regular monitoring of vitamin D levels can help assess disease progression and the need for interventions.

  5. Prevent Deficiency Complications: Identifying and addressing vitamin D deficiency can prevent complications associated with low vitamin D levels, including osteoporosis, muscle weakness, and an increased risk of falls and fractures.

  6. Personalize Care: The results allow healthcare providers to personalize treatment plans by tailoring vitamin D supplementation to the patient's specific needs, taking into account factors such as age, sex, medical history, and lifestyle.

In summary, the Vitamin D Lab Test is a valuable tool for assessing vitamin D status, guiding treatment decisions, and addressing deficiencies that can impact bone health, immunity, and overall well-being. Regular monitoring of vitamin D levels is crucial in providing optimal healthcare for individuals at risk of deficiency or with specific medical conditions.

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Vitamin D, 25-Oh, D2

Vitamin D2 ((ergocalciferol,) is found in fortified foods and in most vitamin preparations and supplements. Vitamin D comes from two sources: endogenous, which is produced in the skin on exposure to sunlight, and exogenous, which is ingested in foods and supplements. The D2 form is found in fortified foods and in most vitamin preparations and supplements. Vitamin D2 is effective when it is converted by the liver and the kidney into the active form, 1,25-dihydroxyvitamin D.

Vitamin D, 25-Oh, D3

Vitamin D3 (cholecalcifero) which comes from animals. Vitamin D comes from two sources: endogenous, which is produced in the skin on exposure to sunlight, and exogenous, which is ingested in foods and supplements. Vitamin D3 is the form produced in the body and is also used in some supplements. Vitamin D3 are is converted by the liver and the kidney into the active form, 1,25-dihydroxyvitamin D.

Vitamin D, 25-Oh, Total

Vitamin D comes from two sources: endogenous, which is produced in the skin on exposure to sunlight, and exogenous, which is ingested in foods and supplements. The chemical structures of the types of vitamin D are slightly different, and they are named vitamin D2 (ergocalciferol, which comes from plants) and vitamin D3 (cholecalciferol, which comes from animals). The D2 form is found in fortified foods and in most vitamin preparations and supplements. Vitamin D3 is the form produced in the body and is also used in some supplements. Vitamin D2 and D3 are equally effective when they are converted by the liver and the kidney into the active form, 1,25-dihydroxyvitamin D.

Vitamin D, 25-Oh, Total

Vitamin D comes from two sources: endogenous, which is produced in the skin on exposure to sunlight, and exogenous, which is ingested in foods and supplements. The chemical structures of the types of vitamin D are slightly different, and they are named vitamin D2 (ergocalciferol, which comes from plants) and vitamin D3 (cholecalciferol, which comes from animals). The D2 form is found in fortified foods and in most vitamin preparations and supplements. Vitamin D3 is the form produced in the body and is also used in some supplements. Vitamin D2 and D3 are equally effective when they are converted by the liver and the kidney into the active form, 1,25-dihydroxyvitamin D.
*Process times are an estimate and are not guaranteed. The lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

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