This test is aslo known as Ergocalciferol Test, Cholecalciferol Test, Vitamin D2 Test, Vitamin D3 Test, Calcidiol Test.
The purpose of "Vitamin D" blood test is to check your levels of this substance inorder to correct its deficiency, insufficiency and vitamin D toxicity (excessive amounts of vitamin D) in the body to support normal bodily functions.
The test, "Vitamin D Total" includes one parameter that is to measures the level of vitamin D in your blood to make sure you have enough for your body to work well.
Your test results may be reported in different ways. It may give you a total vitamin D result, or it may include separate results for vitamin D2 and vitamin D3. These two types of vitamin D work about the same in your body. Your total vitamin D level is the sum of these two types. The total vitamin D number is the important number.
This test may be ordered by your health care practitioner when he or she suspects that the below signs & symptoms might be the cause of vitamin D.
Signs and symptoms may include:
- Abnormal bone development
- Bone deformity
- Bone pain
- Dental abnormalities
- Muscle weakness or cramps
- Seizures
- Weakening of the bones
- Fatigue
- Confusion
- Nausea and vomiting
- Frequent urination
- Kidney problems.
At times, the screening tests are conducted based on certain factors before any symptoms of vitamin D insufficiency or deficiency occur.
The factors include:
- Above 65 years of age
- Certain medications records
- Digestive diseases that make it difficult to absorb nutrients from food, including celiac disease and Crohn’s disease
- Kidney & liver disease
- Obesity
- Osteoporosis
- Reduced ability to make vitamin D in the skin due to limited sun exposure, sunscreen use, or dark skin pigmentation
- Weight loss surgery records
No special preparations required for vitamin D blood test.
None
One or two days
A blood sample drawn from a vein in your arm known as "Vanipuncture".
Sample report in a format
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