October 17, 2007

How Herpes Testing Is Done


Herpes Testing

For a viral culture, viral antigen test, or PCR test, a clean cotton swab is rubbed against a herpes sore to collect fluid and cells for examination. Samples may be collected from the vagina, cervix, penis, urethra, eye, throat, or skin.

Health professionals usually collect a sample from small herpes sores that are only a few days old. Viruses are more likely to be found in small newly formed sores.

For an antibody test, the health professional drawing blood will:


  • Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the vein.
  • Clean the needle site with alcohol.
  • Put the needle into the vein. More than one needle stick may be needed.
  • Attach a tube to the needle to fill it with blood.
  • Remove the band from your arm when enough blood is collected.
  • Put a gauze pad or cotton ball over the needle site as the needle is removed.
  • Put pressure to the site and then a bandage.


  • What To Think About

    Normal test results do not mean you do not have a herpes infection. Herpes is often diagnosed by symptoms and by knowing whether the person has had contact with an infected person. Sometimes a test is not needed.

    A person who has genital herpes needs to learn how to avoid spreading the disease, since the disease is more likely to be spread when he or she has sores. If you have recurrent outbreaks, especially during times of stress or illness, you can also spread the disease.

    You may want to know whether a herpes infection is due to HSV-1 or HSV-2 so you can take steps to prevent or treat outbreaks.

    A genital herpes infection can be spread from a mother to her baby during vaginal delivery. In a newborn, herpes can cause organ failure, brain infection, and death. A pregnant woman with genital herpes will likely have a cervical culture done every week for the last 4 to 6 weeks of the pregnancy before delivery.

    If active herpes is present near the time of delivery, a cesarean delivery may be done to prevent infecting the baby.

    POCkit is a new test available at some clinics. It checks blood from a finger stick for antibodies to HSV-2. The results are generally ready in about 10 minutes. The POCkit test is more expensive than other tests and may not be available everywhere.

    www.webmd.com

    Photo: www.flickr.com

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