Related Experiment Video
Updated: May 27, 2026
05:35
A Point-of-Care Method with Integrated Decision Support Tool to Estimate Anemia at Population Level
Published on: January 19, 2024
[Hemolytic anemias in adults].
A Müller1, R Zimmermann, S W Krause
1Medizinische Klinik 5, Universitätsklinikum Erlangen.
Deutsche Medizinische Wochenschrift (1946)
|November 4, 2011
Summary
Hemolytic anemias shorten red blood cell lifespan, increasing erythropoiesis. Diagnosis involves the direct antiglobulin test (DAT, Coombs test) and identifying fragmented red blood cells in specific syndromes.
Area of Science:
- Hematology
- Internal Medicine
Context:
- Hemolytic anemia is characterized by a shortened erythrocyte lifespan and increased erythropoiesis.
- Key laboratory findings include elevated reticulocytes, lactate dehydrogenase (LDH), and indirect bilirubin, with decreased haptoglobin.
Purpose:
- To review the primary forms of hemolytic anemia in adults.
- To outline diagnostic and therapeutic strategies for these conditions.
Summary:
- The direct antiglobulin test (DAT, or Coombs test) is crucial for differentiating autoimmune hemolytic anemia (AIHA) from other causes.
- Fragmentation syndromes, such as hemolytic uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP), present with fragmented red blood cells and thrombocytopenia.
- Paroxysmal nocturnal hemoglobinuria (PNH) is associated with a significant risk of thrombosis.
Impact:
- Provides a comprehensive overview of adult hemolytic anemias.
- Aids clinicians in diagnosing and managing various forms of hemolytic anemia.
- Highlights the importance of specific diagnostic tools and recognizing associated complications like thrombosis.
Related Concept Videos
01:27Disorders of Erythrocytes
Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
01:01Hypersensitivity Reactions: Cytolytic Reactions
Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
01:19Rh Blood Group
The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.
02:45Blood Transfusion and Agglutination
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...
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...
01:15Blood Transfusion
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...
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...
01:24Disorders of Hemostasis
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.