The universal red cell donor has Type O negative blood. The universal plasma donor has Type AB blood. There are more than 600 other known antigens, the presence or absence of which creates "rare blood types."

There are four main blood types: A, B, AB and O. Blood bank specialists determine your blood type based on whether you have antigen A or B on your red blood cells. They also look for a protein called the Rh factor.

What blood type am I? What blood type will my baby have? Can a child have a different blood type than both parents? What are the rarest blood types? We make it count! Blood type calculator finds out what blood type will your baby have.

Nov 28, 2023 · Most Common Blood Type: O+, followed by A+ and B+. Universal Donor: O- (can be given to almost anyone, especially in emergencies). Universal Receiver: AB+ (can receive from all blood types). Note: “Yes” indicates compatibility for a transfusion between the donor and recipient blood types.

Mar 7, 2025 · There are four major blood type groups: A, B, AB, and O. Your blood type is determined by the presence or absence of specific antigens (proteins and sugars)—which act as identification...

The two most important blood group systems are ABO and Rh; they determine someone's blood type (A, B, AB, and O, with + or − denoting RhD status) for suitability in blood transfusion. A complete blood type would describe each of the 45 blood groups, and an individual's blood type is one of many possible combinations of blood-group antigens. [3] .

Nov 10, 2020 · Based on the type of antigen, your blood will be categorized as Type A, Type B, Type AB, or Type O. “When antigens come into contact with substances that are unfamiliar to your body, such as certain bacteria, they trigger a response from your immune system.

Sep 15, 2023 · How Many Blood Types Are There? The ABO system has four major blood types: A, B, AB, and O. Blood types are further categorized by the presence (positive or +) or absence (negative or -) of the Rh (D) antigen on the surface of their red blood cells, also known as the Rh factor. This produces the eight major blood types. A and B antigens are sugars.

Feb 19, 2025 · If you have type B blood, you can only receive type B or type O blood. You can receive any type of blood if you have type AB blood, but you can only receive type O blood if you have...

Dec 26, 2024 · Four main blood types exist: A, B, AB, or O, and everyone has a positive or negative Rh factor. Blood types are important because they affect blood transfusions, pregnancy outcomes, and blood donation. This article outlines the different blood types and their practical application in blood donation and medical care.