Vitamin D Test - MedlinePlus
A vitamin D test measures the level of vitamin D in your blood to make sure you have enough for your body to work well. Vitamin D is essential for healthy bones and teeth. It also helps keep your muscles, nerves, and immune system working normally.
Vitamin D Test: Uses, Side Effects, Procedure, Results - Verywell Health
2023年4月4日 · The 25-hydroxyvitamin D test is the best way to monitor vitamin D. The amount of 25-hydroxyvitamin D in the blood indicates how much vitamin D the body has. The test tells you if your levels are too high or too low.
4 Best At-Home Vitamin D Tests in 2024 - Healthline
2024年9月2日 · If you’re at risk of vitamin D deficiency or are worried about your levels, an at-home test may be a good first step. Here, we explain how the hydroxy-25 vitamin D test works, who...
Vitamin D Test: Purpose, Risks, and Results - Health
3 天之前 · A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in your blood. It can indicate whether the vitamin D levels in your body are low or high.
25-Hydroxy Vitamin D Test: Purpose, Procedure, and Results
2024年6月7日 · The 25-hydroxy vitamin D test is the best way to monitor vitamin D levels. The amount of 25-hydroxyvitamin D in your blood is a good indication of how much vitamin D your body has. The...
Vitamin D Deficiency: Causes, Symptoms & Treatment - Cleveland …
2022年8月2日 · Vitamin D is an important vitamin your body needs to be healthy. If you have risk factors for developing vitamin D deficiency or are experiencing symptoms, be sure to contact your healthcare provider to get a blood test to check your levels.
Vitamin D Test - Understand the Test & Your Results - MSD …
What is it used for? Why do I need a vitamin D test? What happens during a vitamin D test? Will I need to do anything to prepare for the test? Are there any risks to the test? What do the results mean? Is there anything else I need to know about a vitamin D test? References. Vitamin D Test.
25-hydroxy vitamin D test Information | Mount Sinai - New York
The 25-hydroxy vitamin D test is the most accurate way to measure how much vitamin D is in your body. Vitamin D helps regulate calcium and phosphate levels in the body. How the Test is Performed. A blood sample is needed. How to Prepare for the Test. Usually, you will not need to fast. But this depends on the laboratory and the testing method used.
Vitamin D - Mayo Clinic
2023年8月10日 · If your doctor suspects you're not getting enough vitamin D, a simple blood test can check the levels of this vitamin in your blood. Taking a multivitamin with vitamin D may help improve bone health.
Normal vitamin D levels by age, sources, and toxicity - Medical …
2023年12月21日 · Doctors use blood tests to determine if someone has adequate levels of vitamin D. They measure vitamin D using one of two measurements: nanomoles per liter (nmol/l) or nanograms per milliliter...