what is the normal blood type?
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Distribution of blood types There are 4 main blood groups: A, B, AB and O, of which group O is the most common. In the United States, the average distribution of blood types is as follows: O-positive: 38 percent. O-negative: 7 percent.
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Within the ABO system, people can be one of four groups: O, A, B, or AB; with respect to Rh a person is either positive or negative. This creates a total of eight main blood types. ... Those who have this "Rhesus" factor on their red blood cells are considered Rh positive. Those who lack the factor are called Rh negative.
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Humans. A typical adult has a blood volume of approximately 5 liters, with females and males having approximately the same blood volume. Blood volume is regulated by the kidneys.
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There are 4 main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are 8 blood groups.
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A unit of whole blood is 450 milliliters. The average specific gravity of human whole blood is approximately 1.06, so on average, a unit of whole blood will weigh 477 grams.
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The difference between blood group and blood genotype Within ABO blood group systems, there are four different blood groups; A, B, AB and O while for Rh D group system, there are two types - Rh D positive and Rh D negative. Blood genotype indicates of the type of protein (Haemoglobin) that is in the red blood cells.
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The normal range for WBC is 5 to 10 K/uL. Your CBC will also measure what's called the ANC (absolute neutrophil count) That's the specific number of white blood cells in your blood that fight infection. Red blood cells carry oxygen and remove waste from your body.
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What's the rarest blood type? AB negative is the rarest of the eight main blood types - just 1% of our donors have it. Despite being rare, demand for AB negative blood is low and we don't struggle to find donors with AB negative blood. However, some blood types are both rare and in demand.
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38% of the population has O positive blood, making it the most common blood type. O positive red blood cells are not universally compatible to all types, but they are compatible to any red blood cells that are positive (A+, B+, O+, AB+).
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The two most important blood group systems are ABO and Rh; they determine someone's blood type (A, B, AB, and O, with +, − or null denoting RhD status) for suitability in blood transfusion.
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A normal WBC is between 4,500 and 11,000 (some describe it as 4.5 to 11). Your WBC may go as low as 100 (commonly written as 0.1). The number of neutrophils you have is called an Absolute Neutrophil Count (ANC). A normal ANC is about 2500-7500 (commonly written as 2.5 to 7.5).
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Human blood type is determined by codominant alleles. There are three different alleles, known as IA, IB, and i. The IA and IB alleles are co-dominant, and the i allele is recessive. The possible human phenotypes for blood group are type A, type B, type AB, and type O.
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Myth: O Negative blood is the rarest blood type Contrary to popular belief, O- blood is not the rarest blood type. It is estimated 7 percent of the population has O- blood type while only 1% of the population has AB- blood.
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Normal Results The different types of white blood cells are given as a percentage: Neutrophils: 40% to 60% Lymphocytes: 20% to 40%
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White Blood Cell (WBC) Count. WBCs, or leukocytes, help prevent and fight infections. A normal count ranges from 4,000–11,000/mm3 in a healthy adult. A high count may mean that your body is fighting an infection.
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The normal range for the white blood cell count varies between laboratories but is usually between 4,300 and 10,800 cells per cubic millimeter of blood. This can also be referred to as the leukocyte count and can be expressed in international units as 4.3 - 10.8 x 109 cells per liter.
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Someone that has type A antigens and rH factor is considered to have type A+ blood. If you have both types of antigens and no rH factor, you have type AB- blood. If you have no A or B antigens then you are type O blood. All of this matters because of those antibodies your immune system creates.