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Related Concept Videos

Blood Transfusion01:15

Blood Transfusion

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Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
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The ABO Blood Group01:12

The ABO Blood Group

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The ABO blood group system is a critical element of transfusion medicine, essential for determining blood compatibility in transfusions and organ transplants. It is based on specific antigens, or agglutinogens, present on the surface of red blood cells (RBCs) and corresponding antibodies, or agglutinins, in the blood plasma.
Antigens in the ABO Blood Group System
Antigens are substances that can trigger an immune response, leading to the production of antibodies. In the ABO blood group system,...
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Blood Transfusion and Agglutination02:45

Blood Transfusion and Agglutination

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Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
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Blood Typing01:10

Blood Typing

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Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
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Rh Blood Group01:19

Rh Blood Group

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The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.
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Blood Types02:20

Blood Types

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Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
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Related Experiment Video

Updated: Apr 11, 2026

Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells
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Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells

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Hemolysis from ABO Incompatibility.

Daimon P Simmons1, William J Savage1

  • 1Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.

Hematology/Oncology Clinics of North America
|June 5, 2015
PubMed
Summary
This summary is machine-generated.

ABO incompatibility causes red blood cell lysis, especially during transfusions, due to preformed antibodies. Understanding and preventing this immune response is crucial in various medical settings.

Keywords:
ABH antigensABO blood groupComplementHemolysisIsohemagglutininsMajor incompatibilityMinor incompatibility

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Area of Science:

  • Immunology
  • Transfusion Medicine
  • Hematology

Background:

  • The ABO blood group system is clinically significant due to preformed antibodies (isohemagglutinins).
  • These antibodies, immunoglobulin M (IgM) and immunoglobulin G (IgG), can cause severe reactions in individuals with non-compatible blood types.
  • ABO incompatibility is a primary concern in blood transfusions but also relevant in transplantation and other clinical scenarios.

Purpose of the Study:

  • To highlight the clinical significance of ABO incompatibility.
  • To outline the mechanisms and consequences of ABO incompatibility.
  • To emphasize the importance of prevention and management strategies.

Main Methods:

  • Review of existing literature on ABO blood group system and immunology.
  • Analysis of clinical implications of ABO incompatibility in transfusion, transplantation, and other settings.
  • Discussion of antibody-mediated red blood cell lysis.

Main Results:

  • ABO incompatibility triggers rapid complement-mediated lysis of red blood cells.
  • Preformed IgM and IgG antibodies against ABO antigens are present in most individuals.
  • Consequences include transfusion reactions, graft-versus-host disease, and hemolytic disease of the newborn.

Conclusions:

  • ABO incompatibility is a critical factor in transfusion medicine and transplantation.
  • Preventing ABO incompatibility is paramount to patient safety.
  • Anticipating and managing complications of unavoidable ABO incompatibility is essential.