Skip to content
Testmottagningen logo
en
sv
Testmottagningen logo
🎁 Great deals on christmas gifts ›
P24

HIV antigen

P24 antigen

HIV antigen is a part of the HIV virus, specifically a protein called p24 antigen. This antigen is a structural component of the virus.

Contents

What is HIV antigen (p24 antigen)?

The HIV antigen, p24 antigen, is one of the major antigenic components of the HIV virus that is used to detect the presence of the HIV virus in a person's blood. It is particularly useful for early diagnosis of HIV, as it can be detected earlier than antibodies.

Why is HIV antigen (p24 antigen) analyzed?

The HIV antigen is analyzed for several purposes:

  • Diagnosing HIV infection: This test is used to detect HIV infection early after exposure. P24 antigen can be detected earlier than antibodies, which makes it possible to diagnose HIV at an earlier stage of the infection.
  • Monitor treatment: Analysis of HIV antigen can be used to monitor the effectiveness of HIV treatment. If the amount of p24 antigen decreases during treatment, this may indicate that the treatment is successful.

What can a high value of HIV antigen (p24 antigen) indicate?

A high value of HIV antigen can indicate that a person is in the early stages of an HIV infection, especially if it is combined with a positive result for HIV antibodies. This indicates that the person has recently been infected with the virus.

What does a low value of HIV antigen (p24 antigen) indicate?

A low value of HIV antigen may indicate that there is not enough virus in the blood to be measurable at the time of the test. It can happen early in the infection before the virus level has increased enough to be detected by antigen. An answer showing that a person does not have HIV is only certain after six to twelve weeks.

Is the HIV antigen (p24 antigen) analyzed during investigation before IVF treatment?

In the case of IVF treatments, the HIV antigen can be tested if there is a risk that either the expectant mother or father is HIV positive. This is done to ensure that the treatment can be carried out safely to minimize the risk of transmission of the virus to the unborn child and to protect the other party and medical staff. It is important to consult with a fertility expert about your specific situation regarding IVF treatments and HIV testing.