Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

Helicobacter Pylori, Urea Breath Test

Quest Diagnostics, Quest Diagnostics

Reference range:   Not detected, Detected

The urea breath test can be used to aid in the diagnosis of H pylori infection. The test can also be used to assess therapy when it is administered more than a month after completion of therapy.

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Heliocobater Pylori Antibody IgA (ARUP)

Other

Optimal range:   0 - 1.7 EV

Helicobacter pylori (H. pylori) is a type of bacteria. These germs can enter your body and live in your digestive tract. After many years, they can cause sores, called ulcers, in the lining of your stomach or the upper part of your small intestine. 

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Hematocrit (Female range)

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   35 - 45 %

A hematocrit test (Hct) is a simple blood test that measures the percentage of red blood cells in your blood. Red blood cells are important because they carry oxygen throughout your body. Test results showing low or high hematocrit levels may be signs of blood disorders or other medical conditions.

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Hematocrit (HCT) - Arterial

Arterial Blood Gas Analysis (ABG)

Optimal range:   40.1 - 52.5 %

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Hematocrit (HCT) / Packed Cell Volume (PCV)

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   37.5 - 51 %

A hematocrit test (Hct) is a simple blood test that measures the percentage of red blood cells in your blood. Red blood cells are important because they carry oxygen throughout your body. Test results showing low or high hematocrit levels may be signs of blood disorders or other medical conditions.

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Hematócrito (HCT) / Volume de Glóbulos Compactados (VGC)

Serum

Brazilian Biomarkers

Optimal range:   37.5 - 51 %

Um teste de hematócrito (Hct) é um exame de sangue simples que mede a porcentagem de glóbulos vermelhos no seu sangue. Os glóbulos vermelhos são importantes porque transportam oxigênio por todo o corpo. Resultados que mostram níveis baixos ou altos de hematócrito podem ser sinais de distúrbios sanguíneos ou outras condições médicas.

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Hemoglobin

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   13 - 17.7 g/dL , 130.00 - 177.00 g/L

What is hemoglobin?

Hemoglobin is the main component of red blood cells. Hemoglobin (abbreviation: Hb) is a red substance made of iron and protein.

What's the function of hemoglobin?

- In the blood, it carries oxygen to the cells in the body from the lungs.

- Hemoglobin also carries carbon dioxide away from the cells to the lungs, later exhaled from the body. Carbon dioxide is a colorless and odorless gas present in small amounts in the air. It is a result of metabolism in the body. Metabolism is the chemical action in cells that release energy from nutrients or use energy to create other substances.

What are normal reference ranges for hemoglobin?

Normal hemoglobin levels differ depending on several factors, including age, sex at birth, hormonal supplementation, altitude of residence as well as presence of different hemoglobin types that impact hemoglobin turnover and affinity for oxygen binding.

Like other blood values, slightly high or low levels of hemoglobin may be normal for some people. Still, suppose you are falling too far out of the normal range. In that case, your doctor will most likely order more comprehensive testing to determine the cause. 

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Hemoglobin (Female range)

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   11.1 - 15.9 g/dL

What is hemoglobin?

Hemoglobin is the main component of red blood cells. Hemoglobin (abbreviation: Hb) is a red substance made of iron and protein.

What's the function of hemoglobin?

- In the blood, it carries oxygen to the cells in the body from the lungs.

- Hemoglobin also carries carbon dioxide away from the cells to the lungs, later exhaled from the body. Carbon dioxide is a colorless and odorless gas present in small amounts in the air. It is a result of metabolism in the body. Metabolism is the chemical action in cells that release energy from nutrients or use energy to create other substances.

What are normal reference ranges for hemoglobin?

Normal hemoglobin levels differ depending on several factors, including age, sex at birth, hormonal supplementation, altitude of residence as well as presence of different hemoglobin types that impact hemoglobin turnover and affinity for oxygen binding.

Like other blood values, slightly high or low levels of hemoglobin may be normal for some people. Still, suppose you are falling too far out of the normal range. In that case, your doctor will most likely order more comprehensive testing to determine the cause. 

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Hemoglobin (HGB) - Arterial

Arterial Blood Gas Analysis (ABG)

Optimal range:   13 - 17 g/dL

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Hemoglobin A

Blood Health

Optimal range:   96 - 100 %

Hemoglobin A, featured prominently on the Thalassemia and Hemoglobinopathy Comprehensive (COMP) panel, is a critical component in diagnosing and managing blood disorders. This panel is an essential tool used to detect various forms of thalassemia and hemoglobinopathies, conditions characterized by abnormal hemoglobin production. Hemoglobin A, the most common form of hemoglobin in adults, is composed of two alpha and two beta globin chains.

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Hemoglobin A1c (HbA1c)

Metabolic Health

Optimal range:   4.8 - 5.6 %

The A1C test—also known as the hemoglobin A1C or HbA1c test—is a simple blood test that measures your average blood sugar levels over the past 3 months. It’s one of the commonly used tests to diagnose prediabetes and diabetes, and is also the main test to help you and your health care team manage your diabetes. Higher A1C levels are linked to diabetes complications, so reaching and maintaining your individual A1C goal is really important if you have diabetes.

An A1C test can show your average glucose level for the past three months because:

→ Glucose sticks to hemoglobin for as long as the red blood cells are alive.

→ Red blood cells live about three months.

→ High A1C levels are a sign of high blood glucose from diabetes. Diabetes can cause serious health problems, including heart disease, kidney disease, and nerve damage. But with treatment and lifestyle changes, you can control your blood glucose levels.

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Hemoglobin A2 (Quant)

Immune System

Optimal range:   2.2 - 3.2 %

Hemoglobin A2 (Quant), a key parameter in the Thalassemia and Hemoglobinopathy Comprehensive (COMP) panel, is pivotal in diagnosing and managing various blood disorders. This comprehensive panel is designed to detect and monitor conditions involving abnormal hemoglobin, like thalassemia and hemoglobinopathies. Hemoglobin A2, which consists of two alpha and two delta globin chains, normally comprises a small fraction of the total hemoglobin in adults. The quantitative assessment of Hemoglobin A2 is essential, as its elevated levels are a hallmark feature in beta-thalassemia and other related hemoglobinopathies.

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Hemoglobin F

Blood Health

Optimal range:   0 - 2 %

Hemoglobin F, an integral component analyzed in the Thalassemia and Hemoglobinopathy Comprehensive (COMP) panel, holds significant diagnostic value in the field of hematology. This panel is extensively utilized to detect and manage various blood disorders, specifically thalassemia and hemoglobinopathies, which involve abnormal hemoglobin production or structure. Hemoglobin F, or fetal hemoglobin, normally present in high levels in fetuses and newborns, is comprised of two alpha and two gamma globin chains. Its proportion in adult blood is typically low but can be elevated in certain hematological conditions.

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Hemoglobina

Serum

Brazilian Biomarkers

Optimal range:   13 - 17.7 g/dL

O que é hemoglobina?

A hemoglobina é o principal componente das células vermelhas do sangue. Hemoglobina (abreviação: Hb) é uma substância vermelha composta de ferro e proteína.

Qual é a função da hemoglobina?

  • No sangue, a hemoglobina transporta oxigênio dos pulmões para as células do corpo.

  • A hemoglobina também transporta dióxido de carbono das células para os pulmões, sendo posteriormente eliminado do corpo através da expiração. O dióxido de carbono é um gás incolor e inodoro presente em pequenas quantidades no ar. Ele é um subproduto do metabolismo no corpo. Metabolismo é o processo químico nas células que libera energia dos nutrientes ou utiliza energia para criar outras substâncias.

Quais são os valores de referência normais para a hemoglobina?

Os níveis normais de hemoglobina variam dependendo de vários fatores, incluindo idade, sexo ao nascimento, uso de suplementação hormonal, altitude de residência, bem como a presença de diferentes tipos de hemoglobina que afetam a renovação e a afinidade da hemoglobina para ligação com o oxigênio.

Assim como outros valores sanguíneos, níveis ligeiramente altos ou baixos de hemoglobina podem ser normais para algumas pessoas. No entanto, se os seus níveis estiverem muito fora da faixa normal, é provável que seu médico solicite exames mais abrangentes para determinar a causa.

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Hemoglobina Corpuscular Média (HCM)

Serum

Brazilian Biomarkers

Optimal range:   26.6 - 33 pg

Hemoglobina Corpuscular Média (MCH) refere-se à quantidade média de hemoglobina contida em uma única célula vermelha do sangue. A hemoglobina é uma proteína vital no sangue, responsável por transportar oxigênio dos pulmões para as células do corpo.

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Hemoglobina Glicada (HbA1c)

Brazilian Biomarkers

Optimal range:   4.8 - 5.6 %

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Hemp

Array 4 - Gluten-Associated Cross-Reactive Foods and Foods Sensitivity, Cyrex Laboratories

Optimal range:   0 - 2.3 ELISA Index

The presence of antibodies to Hemp is an indication of food immune reactivity. The offending food and its known cross-reactive foods should be eliminated from the diet. Hemp is emerging as a popular alternative food source, especially for vegetarians. Very few studies have been done on Hemp as a food source, although some cases of sensitization and allergy to the plant have been reported.

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Heneicosanoic (Genova)

Genova Diagnostics (various), Genova Diagnostics

Optimal range:   0 - 0.74 µmol/L

Heneicosanoic acid is an odd-numbered saturated fatty acid.

Fatty acids with odd numbers of carbon atoms are produced primarily by initiating the synthetic series with the three carbon compound, propionic acid. Vitamin B12 is required for the conversion of propionate into succinate for oxidation in the central energy pathways. Deficiency of vitamin B12 results in accumulation of propionate and subsequent buildup of the odd numbered fatty acids, such as heneicosanoic acid.

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Hep A Ab, IgM

Infectious Disease Profile

Reference range:   Negative, Positive

What is hepatitis A?

Hepatitis A is a result of infection with the hepatitis A virus. Hepatitis A is a contagious liver disease that can range in severity from a mild illness lasting a few weeks to a severe illness causing liver failure. Most people infected with the virus get well within 6 months. However, hepatitis A can be serious for older people and people who already have liver disease such as hepatitis B or C.

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Hep A Ab, Total

Infectious Disease Profile

Reference range:   Negative, Positive

Hep A Ab, Total refers to the total antibody test for Hepatitis A virus (HAV). This test measures the overall level of antibodies, including both IgM and IgG antibodies, produced by the body in response to HAV infection or vaccination. IgM antibodies typically appear early during acute infection, while IgG antibodies persist for a longer duration, providing immunity against future infections.

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