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CD21

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Overview brief

CD21 is a protein present in the human body in the matured B-cells and follicular dendritic cells.

What is CD21?

CD21 is found on mature B cells, T lymphocytes, and immature thymocytes. CD21 test is helpful for detecting if the individual has herpes.

Why is CD21 suggested?

CD21 Test is performed when the following symptoms are experienced:

  • Nausea.
  • Frequent urination.
  • Stuffy nose.

How is CD21 performed?

The steps that are followed for performing CD21 test are mentioned below:

  • A band is wrapped around the elbow where the vein is clear.
  • Needle is inserted in the vein after cleaning the skin with alcohol.
  • Blood sample is collected from the patient’s body and sent to the labs for examination.
  • The examiner looks into the samples for Herpes Simplex Virus.

The procedure of CD21 is harmless and takes a short period of time.

What are the parameters measured in CD21?

The parameters measured in CD21 are to detect the presence of Herpes Simplex Virus in the bloodstream of the patient to look for herpes.

Preparation before performing CD21

The preparations required before performing the CD21 test are:

  • Inform the doctor about your medicine intake.
  • Do not change your diet before taking the test.

Post-care after CD21

The post-care after CD21 are:

  • Take some rest.
  • Inform the doctor if any new symptoms are experienced after the CD21 test.

Sample types in CD21

The sample types in CD21 are:

  • Blood samples.
  • Skin tissue samples from the genitals.

Side effects of CD21

The common side effects of CD21 test experienced are:

  • Dizziness.
  • Discomfort.
  • Pain during the test. (1)

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