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Labcorp
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Quest Diagnostics
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Showing 505–528 of 1013 results
Herpes I IgG
Quest
Not offered
Herpes Simplex Virus Type I (Herpes I), IgG Antibodies indicate past or ongoing infection with HSV-1, commonly associated with oral herpes. Detection of IgG antibodies helps determine exposure and immune status to the virus.
- Herpes Simplex Virus 1 IgG Indicates past exposure to herpes simplex virus type 1, commonly associated with oral herpes/cold sores.
Herpes II IgG
Herpes Simplex Virus Type II (Herpes II), IgG Antibodies indicate past or ongoing infection with HSV-2, the virus primarily responsible for genital herpes. Detection of IgG antibodies helps diagnose exposure and assess risk of viral transmission.
- Herpes Simplex Virus 2 IgG Indicates past exposure to herpes simplex virus type 2, commonly associated with genital herpes.
Herpes Simplex Virus Type II (Herpes II), IgG Antibodies indicate past or ongoing infection with HSV-2, the virus primarily responsible for genital herpes. Detection of IgG antibodies helps diagnose exposure and assess risk of viral transmission.
- Herpes Simplex Virus 2 IgG Indicates past exposure to herpes simplex virus type 2, commonly associated with genital herpes.
Herpes I & II IgG
Quest
Not offered
Herpes Simplex Virus Types I & II (HSV-1 & HSV-2) IgG Antibodies detect past or ongoing infections with both HSV-1 (commonly oral herpes) and HSV-2 (commonly genital herpes). Measuring IgG antibodies helps determine exposure, immune status, and risk of viral transmission.
- Herpes Simplex Virus 1 IgG Indicates past exposure to herpes simplex virus type 1, commonly associated with oral herpes/cold sores.
- Herpes Simplex Virus 2 IgG Indicates past exposure to herpes simplex virus type 2, commonly associated with genital herpes.
Herpes Simplex Virus 1 (IgG), Type-Specific Antibody
Labcorp
Not offered
Herpes Simplex Virus (HSV) is responsible for several clinically significant human viral diseases, with severity ranging from inapparent to fatal.
Herpesvirus 6 Antibodies (IgG, IgM)
Labcorp
Not offered
HHV-6 is a distinct herpes virus that typically causes a self-limiting illness in patients who are not immunocompromised. In some patients, especially if immumocompromised, HHV-6 can cause febrile convulsions in infants, encephalitis mononucleosis-like symptoms, and hepatitis.
- Herpesvirus 6 Antibodies (IgG) Indicates past exposure to human herpesvirus 6, a common virus best known for causing roseola in young children.
- Herpesvirus 6 Antibodies (IgM)
Herpesvirus 6 Antibody (IgM)
Labcorp
Not offered
This test checks for the presence of IgM antibodies against herpesvirus 6 in the blood.
Herpesvirus 7 Antibody Panel (IgG, IgM), IFA
Labcorp
Not offered
This panel checks for the presence of IgG and IgM antibodies against herpesvirus 7 in the blood.
Herring (f205) IgE
Labcorp
Not offered
This test measures the body's immune response to herring, a type of fish, by assessing the level of specific IgE antibodies in the serum. It's particularly useful for individuals who may have an allergic reaction to herring, helping to identify and manage potential food allergies.
Hickory/Pecan Tree (t22) IgE
Labcorp
Not offered
This test measures the body's immune response to hickory or pecan tree allergens by checking the level of specific IgE antibodies in the serum. It's useful for individuals who may be experiencing allergic reactions and need to identify the specific tree pollen as the cause.
Hickory White (t41) IgE
Labcorp
Not offered
This test is designed to identify allergies specifically related to the Hickory White tree. By measuring the IgE antibodies in your blood, it can help determine if you have an allergic reaction to this type of tree.
- Hickory White (t41) IgE Measures IgE antibodies to white hickory tree pollen, indicating a possible allergic sensitivity to this tree.
Histamine Determination
Quest
Not offered
This test measures the level of histamine in whole blood. Histamine is involved in the inflammatory response and has a central role as a mediator of itching. It is used to evaluate possible systemic mastocytosis, histadelia, and histapenia.
- Histamine Measures histamine levels in your blood, a compound released during allergic reactions and by certain rare tumors (mast cell disorders).
Histamine, Plasma
Labcorp
Not offered
Histamine is a mediator of the allergic response. Histamine release causes itching, flushing, hives, vomiting, syncope, and even shock. In addition, some patients with gastric carcinoids may exhibit high concentrations of histamine.
- Histamine Measures histamine levels in your blood, a compound released during allergic reactions and by certain rare tumors (mast cell disorders).
Histamine Release (Chronic Urticaria)
Labcorp
Not offered
Chronic Urticaria (CU) is a common skin disorder affecting 1 to 6% of the general population. It is characterized by repeated occurrence of short-lived cutaneous wheals accompanied by redness and itching. Autoimmune urticaria is defined by the presence of a functional IgG antibody to high-affinity IgE receptor (Fc epsilon RI alpha) or IgE. These antibodies trigger mast cell and basophil degranulation by the engagement of Fc epsilon receptor. Functional IgG antibody to the receptor has been identified in approximately 30-40% of patients with CU, and anti IgE antibody has been identified in another 5%-10%.
Histone Antibodies
Labcorp
Not offered
Histone antibody is present in 80-95% of patients with drug-induced Systemic Lupus Erythematosus (SLE), 20-50% of patients with idiopathic SLE, and infrequently in patients with other autoimmune connective tissue diseases.
HLA-B27 Antigen
Labcorp
Not offered
HLA-B27 is found in 90% of patients with ankylosing spondylitis and 80% in Reiter's disease. Ankylosing spondylitis affects 1 in 1000 caucasians. Ankylosing spondylitis is 10 times more common among individuals with HLA-B27 compared to individuals without this antigen.
HLA B51 Behcet's Disease Association
Labcorp
Not offered
This syndrome due to multisystem chronic inflammatory disease of blood vessels has variable presentation of recurrent mouth ulcers, genital ulcers, inflammation of the eye (Uveitis), and gastrointestinal symptoms. HLA-B*51:02 shows the strongest association with the disease, but it is not diagnostic. The disease distribution is worldwide but clusters in the area that extends from Eastern Asia to the Mediterranean region (Silk Route disease).
HLA-DRB1, DQB1, Intermediate Resolution
Labcorp
Not offered
HLA typing is used to match donors and recipients for bone marrow and solid organ transplantation.
HLA DRB3,4,5 Typing, Intermediate Resolution
Labcorp
Not offered
A person's HLA type and antibody profile are important for assessing immunological compatibility between donor and recipient, as incompatibility can result in transplant rejection. HLA typing and antibody testing can help assess donor-recipient immunological risk.
HLA Intermediate Resolution DR1/3/4/5, DQ
Quest
Not offered
This test identifies a patient's HLA DRB1/3/4/5 and DQB1 genotypes.
- HLA-DQB1 A genetic marker used in celiac disease risk assessment and in tissue-typing for organ/stem cell transplant matching.
- HLA-DRB1 A genetic marker used in tissue typing for transplant matching and studied in relation to autoimmune disease risk, including rheumatoid arthritis.
- HLA-DRB3 A genetic marker used in HLA tissue typing, relevant to transplant matching and certain autoimmune and neurological associations.
- HLA-DRB4 A genetic marker used in HLA tissue typing, relevant to transplant matching and certain autoimmune associations.
- HLA-DRB5 A genetic marker used in HLA tissue typing, relevant to transplant matching and certain autoimmune associations.
HLA Intermediate Resolution DR1/3/4/5, DQ (Allele-Resolved DRB3/4/5)
Labcorp
Not offered
This test identifies a patient's HLA DRB1/3/4/5 and DQB1 genotypes.
- HLA-DQB1 A genetic marker used in celiac disease risk assessment and in tissue-typing for organ/stem cell transplant matching.
- HLA-DRB1 A genetic marker used in tissue typing for transplant matching and studied in relation to autoimmune disease risk, including rheumatoid arthritis.
- HLA DRB3-1
- HLA DRB3-2
- HLA DRB4-1
- HLA DRB4-2
- HLA DRB5-1
- HLA DRB5-2
HLA Typing for Celiac Disease
Labcorp
Not offered
Celiac disease is a multigenic immune-mediated enteropathy triggered by dietary proteins, commonly known as glutens, present in wheat, barley, and rye. Varied clinical manifestations begin either in childhood or adult life. Its prevalence in the united states ranges from 0.5 to 1%. Celiac disease is strongly associated with the HLA genetic region. Approximately 90% of celiac patients express the HLA-DQ2 molecule. Most of the DQ2 negative patients express the HLA-DQ8 molecule. Gluten peptides presented by these HLA molecules induce an abnormal mucosal immune response and tissue damage. The HLA-DQ molecules are heterodimers of an alpha and a beta chain. The beta chain of HLA-DQ2 is coded by HLA-DQB102 and of DQ8 by HLA-DQB10302. HLA-DQB1 genotyping allows clinicians to evaluate the genetic predisposition for celiac disease in a patient.
- HLA-DQ2 A genetic marker strongly associated with celiac disease; most people with celiac carry this or the related HLA-DQ8 gene.
- HLA-DQ8 A genetic marker associated with celiac disease, carried by a smaller share of celiac patients than HLA-DQ2.
- HLA-DQB1 A genetic marker used in celiac disease risk assessment and in tissue-typing for organ/stem cell transplant matching.
- HLA DQA1*
HNK1 (CD57) Profile
Quest
Not offered
The HNK1 (CD57) Profile is used to monitor the CD57 lymphocyte subset in patients with chronic Lyme disease.
- Basophils (%) The percentage of your white blood cells that are basophils, a cell type involved in allergic and inflammatory responses.
- CD8-/CD57+ NK Cell Count Counts a specific subset of natural killer cells sometimes used in specialized immune function testing, including chronic infection evaluations.
- Eosinophils (%) The percentage of your white blood cells that are eosinophils, elevated with allergies, asthma, or parasitic infections.
- Hematocrit The percentage of your blood volume made up of red blood cells. Used to help diagnose anemia or polycythemia (excess red blood cells).
- Hemoglobin The oxygen-carrying protein in your red blood cells. A core marker for diagnosing anemia and other blood disorders.
- Immature Granulocytes (%) The percentage of young, not-yet-mature white blood cells in circulation — a rise can be an early sign of infection or bone marrow stress.
- Lymphocytes (%) The percentage of your white blood cells that are lymphocytes, key immune cells including T-cells, B-cells, and NK cells.
- Monocytes (%) The percentage of your white blood cells that are monocytes, cells that help fight infection and clear damaged tissue.
- Neutrophils (%) The percentage of your white blood cells that are neutrophils, a first-line defense against infection.
- % CD8-/CD57+ NK Cells The percentage of lymphocytes that are this natural killer cell subset, used in specialized immune function assessments.
- Basophils The number of basophils, a type of white blood cell involved in allergic and inflammatory responses, in your blood.
- Eosinophils The number of eosinophils, a white blood cell type involved in allergic reactions and parasite defense, in your blood.
- Immature Granulocytes The number of young, not-yet-mature white blood cells in circulation — a rise can be an early sign of infection or bone marrow stress.
- Lymphocytes The number of lymphocytes, white blood cells central to your immune response (including T-cells, B-cells, and NK cells), in your blood.
- Mean Corpuscular Hemoglobin Concentration (MCHC) Mean Corpuscular Hemoglobin Concentration — the average concentration of hemoglobin within your red blood cells, used to help classify types of anemia.
- Mean Corpuscular Hemoglobin (MCH) Mean Corpuscular Hemoglobin — the average amount of hemoglobin per red blood cell, used to help classify types of anemia.
- Mean Corpuscular Volume Mean Corpuscular Volume — the average size of your red blood cells, a key value used to help determine the cause of anemia.
- Monocytes The number of monocytes, white blood cells that help fight infection and clear damaged cells, in your blood.
- Neutrophils The number of neutrophils, the most abundant white blood cell type and a first-line defense against infection, in your blood.
- Nucleated RBC (%), Automated
- Platelet Count Cell fragments that help your blood clot. Counted to screen for bleeding or clotting risk and various blood disorders.
- Red Blood Cell Count (RBC) Red blood cell count — the number of oxygen-carrying red blood cells in your blood, used to help diagnose anemia or polycythemia.
- Red Cell Distribution Width (RDW) Red Cell Distribution Width — measures how much your red blood cells vary in size, helpful for narrowing down the cause of anemia.
- White Blood Cell Count (WBC) White blood cell count — the total number of white blood cells in your blood, key immune cells. Used to help detect infection, inflammation, and other blood disorders.
Honey Bee (i1) IgE
Labcorp
Not offered
This test measures the body's immune response to honey bee stings by detecting specific IgE antibodies in the serum. It's crucial for diagnosing allergies to honey bee stings, which can range from mild reactions to more severe, life-threatening conditions.
Horse Dander (e3) IgE
Labcorp
Not offered
This test measures the immune system's response to horse dander by checking the levels of IgE antibodies in the serum. It's particularly useful for individuals who may be experiencing allergic reactions and need to identify or confirm horse dander as a potential allergen.