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HIV I & II

About the test
What is this test done for?
HIV I & II is a combined blood test used for screening of HIV (Human Immuno deficiency Virus), which is responsible for AIDS (acquired immuno deficiency syndrome).
Why is it Done?

This is a routine screening blood test prescribed for ruling out HIV infection in a patient.

It is performed:

  • As a part of pre-operative profile i.e. done before surgery
  • Before pregnancy as a routine screening test
  • If a person had unprotected sex with unknown or multiple partners
  • Had frequent blood transfusions
  • In drug users (abusers) that share needles
  • Needle prick in healthcare workers
When should it be performed?

This test is performed when a person has been

  • Exposed to infection due to unprotected sex with unknown or multiple partners or with HIV positive partner
  • Pregnant, done as a routine test
  • Undergoing any surgery, as a part of preoperative profile
  • Diagnosed with hepatitis, tuberculosis or any other STDs (sexually transmitted diseases)
  • Drug abuser, with needle sharing
  • A healthcare worker, who gets exposed to needle prick with blood and tissue fluids of patients
  • Received blood years back or receiving blood frequently
  • Having symptoms like
    • Sudden, unexplained weight loss (>10% of total body weight)
    • Long standing fever, lasting > 3 weeks
    • Swollen lymph nodes
    • White spots in mouth or throat
    • Reddish spots on skin or in mouth
    • Chronic diarrhea or cough
    • Forgetfulness
    • Depression
How is it done
A blood sample will be collected from a vein in your arm. No special preparations like fasting required.
Results
  • The test result is normal or negative; if the report reads HIV I & II antibodies are absent. It means no HIV infection.
  • The test result is positive; if report reads HIV I & II antibodies are present. It means presence of HIV infection.
  • This requires further evaluation of subtype and is done with the help of ELISA and/or RNA test.
Other Tests
  • ELISA test
    • It is a specialized blood test carried out to detect HIV infection
    • Presence of antibodies indicate HIV infection
  • Western Blot
    • It is a blood test carried out to confirm HIV infection
    • Presence of antibodies indicate HIV infection
  • HIV Viral Load measurement
    • It is a specialized blood test that evaluates the amount of viral RNA present in 1 ml of blood
    • It gives the extent and severity of infection
    • It also confirms the viral strain (I or II)
  • CD4 count
    • It is a specialized blood test that evaluates the amount of T4 lymphocytes or CD4 cells in 1ml of blood
    • Lower the count, more is the extent of disease and higher the count lower or controlled infection
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