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Vitamin D (25-OH)

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Overview Brief

The Vitamin D (25-OH) test is done to check the levels of Vitamin D in one’s blood.

What is Vitamin D (25-OH)?

Vitamin D is responsible for absorbing calcium and maintaining the strength of your bones. Vitamin D (25-OH) helps in checking its levels.

Vitamin D is produced when it comes in contact with the sun’s UV rays. It can also be found in dairy products, eggs, and fish. The Vitamin converts into a chemical called calcidiol in the liver, which the Vitamin D (25-OH) test checks for.

Vitamin D (25-OH) is a great way to check the levels of Vitamin D as higher the amounts of calcidiol, higher the vitamin in one’s blood.

Why is Vitamin D (25-OH) suggested?

The Vitamin D (25-OH) is done to check for the deficiency in the following people:

  • People who are rarely ever in the sun.
  • People who are obese.
  • People who’ve had gastric bypass surgery.
  • People who have diseases affecting their intestines. [1]

How is Vitamin D (25-OH) performed?

Vitamin D (25-OH) is performed as follows:

  • The patient’s blood is drawn from their arm.
  • It is then checked for the 25-OH levels.

The Vitamin D (25-OH) test takes less than 15 minutes to complete.

What are the parameters measured in Vitamin D (25-OH)?

According to many experts, the ideal values in a Vitamin D (25-OH) are between 20-40 ng/ml and 30-50 ng/ml as per others. [2]

Preparation for Vitamin D (25-OH)

One is required to fast for at least four to eight hours before their Vitamin D (25-OH) test.

Post-care after Vitamin D (25-OH)

One can resume their daily routine after the Vitamin D (25-OH) test. [3]

Sample types in Vitamin D (25-OH)

One’s blood sample is taken in a Vitamin D (25-OH) test.

Side effects/risks of Vitamin D (25-OH)

The risks involved with Vitamin D (25-OH) are:

  • Excessive bleeding
  • Infection
  • Fainting

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