Save 25% on autoimmune tests through December 10th. View terms >
Vitamin D Test
Vitamin D Test
Measure the levels of Vitamin D in your blood, which is a key nutrient that helps your body absorb calcium and phosphoruhs. Both are essential for building healthy and strong bones. Read moreTest details
Sample type:
Blood
Preparation:
You do not need to do anything special to prepare for the test.
Fasting is not required.
$69.00
+ $6.00 Physician Service Fee
What
This test measures the level of Vitamin D in your blood.
Who
Must be 18+ years of age to purchase.
How
Blood
Where
Schedule an appointment, then visit a Quest Diagnostics patient service center location.
About the Test
Measures the level of Vitamin D in your blood. When exposed to sunlight, your skin can produce its own Vitamin D in addition there are many foods fortified with Vitamin D. Your body stores an inactive form of Vitamin D in fat cells until it is needed for use. The liver and the kidneys convert inactive Vitamin D to 25 hydroxyvitamin D, the active form the body needs. Our blood test measures the amount of 25 hydroxyvitamin D, an indicator for the level of Vitamin D in your body. Abnormal levels of Vitamin D can indicate bone disease, nutrition disorders, or other metabolic complications.
How it works
FAQs
Vitamin D is available as a vitamin supplement and is a component in many multi-vitamins. Adding foods to your diet that naturally contain Vitamin D or have been fortified with Vitamin D may also help you increase your Vitamin D levels.
Foods that naturally contain Vitamin D:
• Fatty fish such as salmon, tuna, and mackerel
• Beef liver
• Cheese
• Mushrooms
• Egg yolks
Foods that may be fortified with Vitamin D:
• Milk
• Breakfast cereals
• Orange juice
• Other dairy products, such as yogurt
Foods that naturally contain Vitamin D:
• Fatty fish such as salmon, tuna, and mackerel
• Beef liver
• Cheese
• Mushrooms
• Egg yolks
Foods that may be fortified with Vitamin D:
• Milk
• Breakfast cereals
• Orange juice
• Other dairy products, such as yogurt
There may be many causes of Vitamin D deficiency. Some reasons include:
• Not enough Vitamin D in the diet
• Poor absorption of Vitamin D
• Inadequate exposure to sunlight
• Not enough Vitamin D in the diet
• Poor absorption of Vitamin D
• Inadequate exposure to sunlight
Some risk factors for Vitamin D deficiency include:
• Adults > 50 years of age
• People with darker skin (darker skin absorbs less sunlight)
• People who are overweight
• People who are vegan or have a diet low in Vitamin D–rich foods
• People with other health conditions such as Crohn disease, celiac disease, kidney disease, or liver disease
• Adults > 50 years of age
• People with darker skin (darker skin absorbs less sunlight)
• People who are overweight
• People who are vegan or have a diet low in Vitamin D–rich foods
• People with other health conditions such as Crohn disease, celiac disease, kidney disease, or liver disease
A high level of Vitamin D is known as Vitamin D toxicity, and it can be harmful. If left untreated, it can cause kidney damage. Too much Vitamin D can also raise the level of calcium in the bloodstream and lead to confusion, disorientation, and issues with heart rhythm.
You may be able to use your FSA or HSA funds to purchase lab tests at questhealth.com. Please review your FSA/HSA plan or check with a tax professional to confirm specific requirements for individual eligibility.