The Epstein-Barr Virus Nuclear Antigen Antibody (EBV Nuclear Ag Ab) test is a significant component of the Epstein-Barr Virus VCA (Viral Capsid Antigen) Antibody Panel, playing a critical role in diagnosing and understanding the Epstein-Barr Virus (EBV) infection. EBV, a widespread virus, is known for causing infectious mononucleosis and is linked to several other conditions, including certain cancers and autoimmune diseases. The EBV Nuclear Ag Ab test specifically detects antibodies developed against the nuclear antigen of the Epstein-Barr Virus, which are antibodies the immune system produces in response to EBV's nuclear material.

The EBV (Epstein Barr) Nuclear Antigen Antibodies, IgG test looks for a type of antibody which the body typically develops in response to Epstein-Barr Virus.

EBNA antibodies usually appear 2-4 months after infection and persist for the life of the person.  This test is usually performed to establish a past infection with EBV.

The marker EBV PCR Whole Blood LOG signifies the level of Epstein-Barr Virus (EBV) DNA in whole blood, measured using a quantitative PCR (polymerase chain reaction) method. The value is reported both in international units per milliliter (IU/ml) and as a logarithmic value (LOG). This measurement indicates the viral load of EBV present in the blood.

EBV is associated with various diseases, including infectious mononucleosis and certain cancers. Quantitative PCR allows precise measurement of viral DNA levels, aiding in monitoring EBV-related diseases.

The reported value helps clinicians assess the severity of infection or disease progression.

This test is intended to be used for the quantitative detection of Epstein-Barr virus (EBV) DNA and as an aid in the diagnosis and management of EBV infections.

→ This test is only used as an aid in monitoring EBV-related disease.

→ It is not appropriate for the diagnosis of mononucleosis; order serological testing Epstein-Barr Viral Ab Panel instead.

Epstein-Barr Virus (EBV) VCA IgG is a crucial antibody tested in the Epstein-Barr Virus VCA (Viral Capsid Antigen) Antibody Panel, commonly used to diagnose and monitor EBV infections. EBV, a member of the herpesvirus family and one of the most common human viruses, is known for causing infectious mononucleosis and has been linked to various forms of cancer and autoimmune diseases. The EBV VCA IgG test specifically measures the IgG antibodies that the immune system produces in response to the viral capsid antigen of the Epstein-Barr Virus. These antibodies typically develop during the acute or recent phase of an EBV infection and can remain in the system for life, providing long-term immunity.

EBV-VCA, IgG is an antibody (protein) that is produced by the body in an immune response to an Epstein-Barr virus antigen.

eGFR stands for estimated glomerular filtration rate. Your eGFR score is a reflection of your blood test for creatinine, a waste product formed in muscular metabolism. It estimates how well your kidneys are working.

Alternative Names: GFR; Estimated GFR; eGFR

What is GFR?

GFR is a blood test that measures how much blood your kidneys filter each minute, which is known as your glomerular filtration rate (GFR). You have two kidneys. Their main job is to filter wastes and extra water out of your blood to make urine. eGFR is a measure of how well your kidneys are working. Measuring serum creatinine along with an estimated glomerular filtration rate (eGFR) is recommended as the first step in GFR evaluation by current clinical practice guidelines. Your eGFR is an estimated number based on a blood test and your age, sex, body type and race. eGFR is considered a mostly reliable test for doctors to know how well your kidneys are working. However, the eGFR may not be accurate if you are younger than 18, pregnant, very overweight or very muscular. In addition, other tests such as  an ultrasound or a kidney biopsy may be ordered to find a cause of your kidney disease.

The eGFR (estimated Glomerular Filtration Rate) / Cystatin C Ratio is a significant marker offering vital insights into kidney function and health. Glomerular filtration rate (GFR) is a test that measures the flow rate of filtered fluid through the kidneys, serving as a critical indicator of kidney health. eGFR is an estimated value derived from blood creatinine levels, age, sex, and race, providing a non-invasive assessment of kidney function. Cystatin C, on the other hand, is a protein produced by all nucleated cells in the body, and its level in the blood inversely correlates with kidney function. Unlike creatinine, Cystatin C levels are less influenced by muscle mass, age, or diet, making it a potentially more accurate marker of kidney function for certain populations.

The presence of salivary antibodies to Egg is an indication of loss of mucosal tolerance and the onset of food immune reactivity. Egg antigen assessed consists of egg white, egg yolk both raw and cooked. The offending food and its known cross-reactive foods should be eliminated from the diet. Egg immune reactivity is more common in children than in adults.

Since many children eventually develop immune tolerance, they may outgrow immune reactivity to Egg.

Cooked egg introduced at 4 to 6 months of age may protect against egg allergy/sensitivity. Adult onset of Egg allergy has been reported.

The presence of antibodies to Egg is an indication of food immune reactivity. Egg antigen assessed consists of egg white, egg yolk both raw. The offending food and its known cross-reactive foods should be eliminated from the diet. Egg immune reactivity is more common in children than in adults.

Since many children eventually develop immune tolerance, they may outgrow immune reactivity to Egg. Cooked egg introduced at 4 to 6 months of age may protect against egg immune reactivity. Adult onset of Egg allergy has been reported. Bird-egg syndrome, more common in adults than children, is the association between respiratory allergy to bird antigens and food allergy to eggs, and in some cases, meat from the same or different bird species.

Eggerthella lenta is a normal human microflora that is anaerobic, non-sporulating, and Gram positive. However, an increasing number of studies have shown that it could also be an important pathogen for humans, even causing life-threatening infection under certain conditions. However, understanding its pathogenic mechanism and treatment options still need to be improved; more clinical data are needed to explore it further. The frequency of E. lenta bacteremia is increased in patients with hematologic or solid organ cancer, diabetes mellitus and also in those with appendicitis.

Eggerthella lenta is a normal human microflora that is anaerobic, non-sporulating, and Gram positive. However, an increasing number of studies have shown that it could also be an important pathogen for humans, even causing life-threatening infection under certain conditions. However, understanding its pathogenic mechanism and treatment options still need to be improved; more clinical data are needed to explore it further. The frequency of E. lenta bacteremia is increased in patients with hematologic or solid organ cancer, diabetes mellitus and also in those with appendicitis.