Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

HPHPA (3-(3-hydroxyphenyl)-3-hydroxypropionic acid)

Organic Acids, Vibrant Wellness

Optimal range:   0 - 227 mmol/mol

HPHPA is a clostridia metabolite and dysbiosis marker and stands for 3-(3-hydroxyphenyl)-3-hydroxypropionic acid.

HPHPA is an indicator for dysbiosis due to overgrowth of Clostridia bacteria (e.g., C. sporogenes, C. caloritolerans, and C. botulinum) in the GI tract. This metabolite was found in higher concentrations in urine samples of children with autism compared to age and sex appropriate controls. This metabolite inhibits the enzyme dopamine-beta-hydroxylase, leading to a derangement of neurotransmitter balance. Consider testing the complete neurotransmitter cascade to observe all marker levels.

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HPHPA (Males Age 13 and Over)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 102 mmol/mol creatinine

HPHPA is a clostridia metabolite and dysbiosis marker and stands for 3-(3-hydroxyphenyl)-3-hydroxypropionic acid.

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HPHPA (Males Under Age 13)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 220 mmol/mol creatinine

HPHPA is a clostridia metabolite and dysbiosis marker and stands for 3-(3-hydroxyphenyl)-3-hydroxypropionic acid.

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HpSA - H. pylori

Stool

2200 GI Effects Comprehensive Profile - Stool, Genova Diagnostics

Reference range:   Negative, Positive

Helicobacter pylori is a bacterium that causes peptic ulcer disease and plays a role in the development of gastric cancer. Direct stool testing of the antigen (HpSA) is highly accurate and is appropriate for diagnosis and follow-up of infection.

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HPV (Human Papillomavirus)

Vaccination

Vaccination Tracker

Reference range:   Vaccinated, Not vaccinated

Human Papillomavirus, or HPV, is a common virus that spreads through skin-to-skin contact, usually during sexual activity. While most HPV infections clear up on their own, some can lead to serious health problems, including certain types of cancer and genital warts.The good news is that there's a safe and effective vaccine to protect against the most harmful types of HPV. This vaccine is recommended for both boys and girls, typically starting around age 11 or 12, but it can be given as early as age 9.

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hsCRP

Lipid Panel

Optimal range:   0 - 1 mg/L

C-reactive protein (CRP) is a general indicator of inflammation in the body. The inflammation can be acute and caused by infection or injury. Inflammation can also be chronic, which typically points toward more serious diseases.  High-sensitivity CRP (hs-CRP) tests are commonly ordered to determine your risk of cardiovascular disease.

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HSV 1 IgG, Type Spec

Herpes Testing

Optimal range:   0 - 0.91 index

Herpes is a common viral infection caused by the herpes simplex virus (HSV). The virus exists as two main types, HSV-1 and HSV-2. 

HSV testing identifies the presence of the virus in a sample from a blister, sore or fluid to diagnose an active herpes infection or testing detects antibodies in the blood to determine previous exposure to herpes.

Both HSV-1 and HSV-2 are contagious and periodically cause small fever blisters (vesicles) that break to form open lesions.

HSV-1 primarily causes blisters or "cold sores" around the mouth (non-genital sites).
HSV-2 usually causes lesions around the genital area.

However, both HSV-1 and HSV-2 can affect either the oral or genital areas.

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HSV 1 IgM Antibodies

Herpes Testing

Optimal range:   0 - 0.1 titer

A herpes IgM (immunoglobulin M) test is a blood test that can detect early herpes simplex virus (HSV) infection. Herpes IgM is one of the first types of antibody that appears after infection, so this blood test is the earliest one that can be used to detect herpes.

HSV is a contagious condition that causes sores around the mouth or genitals.

The IgM test does not detect herpes directly. Instead, it looks for IgM, a type of antibody. This is a protein produced by the immune system in response to a herpes infection.

The herpes IgM antibodies can take up to 10 days to develop after a primary infection with the virus.

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HSV 2 IgG Inhibition, IA

Herpes Testing

Reference range:   Non-Reactive, Reactive

The marker HSV-2 IgG Inhibition, IA, refers to a specific immunological assay designed to detect IgG antibodies against Herpes Simplex Virus type 2 (HSV-2) in human serum or plasma samples. This assay is based on the principle of antibody inhibition, where specific antibodies in the patient's sample bind to antigens of HSV-2 immobilized on a solid phase, such as a microtiter plate. The presence of these antibodies is then detected through a secondary reaction that involves an enzyme-linked anti-human IgG antibody, leading to a measurable signal, typically a color change, which is indicative of the presence and quantity of HSV-2-specific IgG antibodies. The assay is highly specific due to the use of inhibition steps that minimize cross-reactivity with antibodies against other viruses, including Herpes Simplex Virus type 1 (HSV-1), thus ensuring accurate differentiation between infections caused by HSV-1 and HSV-2.

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HSV 2 IGG Screening Index

Herpes Testing

Optimal range:   0 - 0.9 Value

What is the HSV-2 IgG Screening Index? The HSV-2 IgG Screening Index is a blood test used to detect Immunoglobulin G (IgG) antibodies specific to the Herpes Simplex Virus Type 2 (HSV-2). HSV-2 is a common viral infection that primarily causes genital herpes. This test helps determine if an individual has been exposed to the virus, even if they have never experienced symptoms.

Understanding Your Results The test results are reported as an index value, which falls into one of the following categories:

  • Negative (≤0.90): No detectable HSV-2 IgG antibodies. This suggests no prior exposure to HSV-2.

  • Equivocal (0.91–1.09): The result is inconclusive. Retesting in 4 to 6 weeks is recommended to confirm status.

  • Positive (≥1.10): HSV-2 IgG antibodies are present, indicating past or current infection.

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HSV 2 IgG, Type Spec

Herpes Testing

Optimal range:   0 - 0.91 index

Herpes is a common viral infection caused by the herpes simplex virus (HSV). The virus exists as two main types, HSV-1 and HSV-2. 

HSV testing identifies the presence of the virus in a sample from a blister, sore or fluid to diagnose an active herpes infection or testing detects antibodies in the blood to determine previous exposure to herpes.

Both HSV-1 and HSV-2 are contagious and periodically cause small fever blisters (vesicles) that break to form open lesions.

HSV-1 primarily causes blisters or "cold sores" around the mouth (non-genital sites).
HSV-2 usually causes lesions around the genital area.

However, both HSV-1 and HSV-2 can affect either the oral or genital areas.

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HSV 2 IGG, TYPE SPECIFIC AB

Herpes Testing

Optimal range:   0 - 0.9 Value

The marker "HSV 2 IgG, Type Specific Ab" on a herpes testing panel refers specifically to a blood test that checks for the presence of antibodies against the Herpes Simplex Virus type 2 (HSV-2). This type of virus primarily causes genital herpes, a sexually transmitted infection characterized by painful sores and blisters in the genital area. The "IgG" in the name of the test stands for Immunoglobulin G, which is a type of antibody. When someone is infected with HSV-2, their immune system responds by producing IgG antibodies specifically targeted against the virus. These antibodies usually develop within a few weeks after exposure and can remain in the body for a lifetime, providing a means of identifying past infection. A "Type Specific" test is designed to differentiate between HSV-2 antibodies and those produced in response to other herpesviruses, such as HSV-1, which commonly causes oral herpes. Detecting these antibodies through the test helps in confirming whether a person has been infected with HSV-2, even if they are not currently showing symptoms. This information is crucial for managing and preventing the spread of genital herpes.

What does an Equivocal result indicate?

"Equivocal" levels on a test like the HSV 2 IgG, Type Specific Ab mean that the results are unclear or borderline; they neither confirm nor rule out the presence of the antibodies against Herpes Simplex Virus type 2 (HSV-2) definitively. This can occur for a variety of reasons, such as the test being taken too soon after exposure, when antibody levels are not yet high enough to be definitively detected, or when there is a low level of antibodies that doesn't clearly meet the threshold for a positive result. In such cases, it's usually recommended to repeat the test after some time has passed, typically a few weeks, to see if the antibody levels have increased, which would indicate a past infection.

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HSV 2 IgM Antibodies

Herpes Testing

Optimal range:   0 - 0.1 titer

Herpes Simplex Virus is a common pathogen of humans. The clinical course of HSV in humans is extremely variable. Primary infection with HSV, either type 1 or 2, is unapparent or subclinical in a majority of cases.

When clinically apparent, HSV infections can range from minimal stomatitis to a fatal generalized infection. Some of the major clinical manifestations of HSV infections are acute gingivostomatitis, recurrent herpes labialis, keratoconjunctivitis, eczema herpeticum, encephalitis, and meningitis.

Generalized infections are normally confined to individuals with immune deficiency, immunosuppressed patients, or newborns.

There are two distinct types of HSV: Types 1 and 2.

HSV-1 and HSV-2 are closely related but they can be separated both serologically and biologically.

HSV-1 is associated with lesions above the waist (encephalitis, stomatitis, eye infections, and, in some cases, of generalized infections).

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HSV Type 1-Specific Ab, IgG

Infectious Disease Profile

Optimal range:   0 - 0.9 / index

HSV Type 1-Specific Ab, IgG refers to the specific antibodies produced by the immune system in response to the herpes simplex virus type 1 (HSV-1). The IgG antibodies are indicative of a past or current infection with HSV-1. This test helps in diagnosing the presence of the virus, particularly in cases of oral herpes or cold sores.

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HSV-2 Ab, IgG

Infectious Disease Profile

Optimal range:   0 - 0.91 / index

HSV-2 Ab, IgG refers to the antibody test for herpes simplex virus type 2 (HSV-2) using the immunoglobulin G (IgG) class of antibodies. This test is employed to detect the presence of IgG antibodies specifically related to the HSV-2 virus in the bloodstream. The presence of these antibodies typically indicates a prior exposure to the herpes simplex virus type 2, suggesting a past infection.

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HU Ab Screen, IFA, Serum

Serum

HU Antibody Screen w/Refl to Titer and WB, Quest Diagnostics

Reference range:   Negative, Positive, Fluorescence noted

The Hu Ab Screen, IFA (Immunofluorescence Assay), Serum test is a pivotal diagnostic tool in neurology and oncology, primarily utilized for the detection of paraneoplastic neurological syndromes associated with cancers like small cell lung cancer. This test identifies Hu antibodies, markers of an autoimmune response where the immune system targets the nervous system, often in response to an underlying malignancy. The application of IFA, known for its sensitivity and specificity, ensures accurate detection of these antibodies. A positive result can be a critical early indicator of cancer, even before it is clinically evident, and aids in diagnosing associated neurological conditions such as encephalomyelitis and sensory neuronopathy.

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HU AB SCREEN, IFA, SERUM

Sensory Motor Neuropathy Complete Antibody Panel, Quest Diagnostics

Reference range:   POSITIVE, NEGATIVE

Neuronal nuclear (Hu) antibody is present in patients with various neurological symptoms including two paraneoplastic syndromes: sensory neuropathy (PSN) and encephalomyelitis (PEM). The presence of Hu antibody strongly suggests underlying small cell lung carcinoma (SCLC). Hu antibody is identified by IFA and confirmed by Western Blot. A negative result does not exclude the possibility of a SCLC or other malignant tumor.

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Human + Chlamydia HSP-60

Array 12 – Pathogen-Associated Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   1 - 2.6 ELISA Index

Heat shock protein 60 (HSP60) is a mitochondrial chaperonin that plays a role in the transportation and refolding of proteins from the cytoplasm into the mitochondrial matrix.

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Human Chorionic Gonadotropin (hCG), Total

Endocrinology

Reference range:   Positive, Negative

A qualitative HCG blood test checks if there is a hormone called human chorionic gonadotropin in your blood. HCG is a hormone produced in the body during pregnancy.

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Human Herpes Virus 6 PCR

Herpes Testing

Reference range:   Negative, Positive

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