HIV-1 infection results in a decrease of CD4 T cells, an increase of CD8 T cells, a decrease in the CD4:CD8 ratio, and a progressive destruction of immune function. In HIV-1 seropositive patients, enumeration of CD4 T cells may be used for prognostic purposes and to monitor disease progression and antiretroviral therapy.
Also Known As: HIV disease progression & treatment monitoring
This blood test checks for a type of antibody called immunoglobulin G (IgG) that is the result of past or recent exposure to COVID-19, also known as the novel coronavirus (this is not a test for an active infection).
Intrauterine or congenital CMV infections occur in 0.5 to 2.2% of all live births. Symptomatic congenital infections usually occur in infants born to non-immune mothers who have primary infections during pregnancy. A single positive CMV IgG result is and indication of present or past infection. The presence of CMV IgM suggests a recent CMV exposure.
Primary infection by EBV causes infectious mononucleosis, usually a self-limiting disease in children and young adults. Infection with EBV can cause lymphoproliferative disorders including tumors. Absence of VCA-IgG usually indicates the patient is susceptible to EBV infection.
Also Known As: Epstein Barr Viral Capsid Antigen Antibodies IgG
Epstein-Barr Virus (EBV) is a virus that is responsible for the disease mononucleosis. IgM is especially useful in determining if there is active disease, since this is the only time there will be CMV IgM antibodies present in the blood.
Also Known As: Epstein Barr Viral Capsid Antigen Antibodies IgM
Epstein-Barr Virus (EBV) is a virus that is responsible for the disease mononucleosis. EBV Nuclear Antigen antibody only occurs in the blood once the initial infection has been resolved.
Also Known As: Epstein-Barr Virus NA Abs, EBNA
Epstein-Barr Virus (EBV) is a virus that is responsible for the disease mononucleosis. EBV PCR qualitative test is a rapid test that can be performed on someone exhibiting symptoms of mononucleosis or EBV.
Also Known As: Epstein Barr, PCR Qualitative
Giardia is a protozoan that can cause diarrhea. Infection occurs after ingestion of contaminated food or water.
Also Known As: Giardiasis, Giardia Lamblia Direct Detection EIA
It indicates prior or acute infection with, or immunization to, Hepatitis A virus. Immunoglobulin M (IgM) antibodies to Hepatitis A suggest a current, acute or recent Hepatitis A infection.
The Hepatitis B vaccine is recommended for those who have not been previously vaccinated. This test looks for IgM antibody to hepatitis B core antigen and is a reliable marker for acute hepatitis B infection.
Hepatitis B Virus (HBV) is one of the several viruses that cause hepatitis. HBV PCR test measures the amount of HBV genetic material in the blood.
Also Known As: HBV PCR
Surface antigen usually appears in the serum following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1 to 3 months. Persistence of Hepatitis B surface antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.
Also Known As: Hepatitis B Immunity Test, Hep B Titer
Surface antigen usually appears in the serum following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1 to 3 months. Persistence of Hepatitis B surface antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.
