Cold Agglutination

This is a disorder in which RBCs – in their own serum or in other serum – clump together (agglutinate) in response to slight cooling (below 86° F it’s <30c). The clumping ...

Types of Anemia

The following are some of the most common anemias. They are arbitrarily grouped according to RBC color and size; other sources may group them in different ways. 1. Anemia Due to Bleeding: ...

Blood sample hemolysis

this is usually caused by a procedural error such as using too small of a needle, or pulling back to hard on the plunger of a syringe used for collecting the sample. The red cells ...

Antistreptolysin O titer

What is Anti-streptolysin O ? Anti-streptolysin O (ASO or ASLO) is the antibody made against streptolysin O, an immunogenic, oxygen-labile hemolytic toxin produced by most strains ...

Staphylococcus – Hemolysis

Some bacteria produce hemolysins, exotoxins that cause red blood cells (RBC’s) to burst open (hemolyse).When these bacteria are cultured on blood agar, this hemolysis is visible ...

Staphylococcus aureus

– gram positive cocci – nonmotile – Catalase: positive – Oxidase: negative – facultative anaerobic – grape-like clusters under microscope – ...

Hemolysis Diagram

Different types of bacterial hemolysis on blood agar

  Different types of bacterial hemolysis on blood agar : Staphylococcus – Hemolysis. A=Beta Hemolysis B=Alpha Hemolysis C=Gamma Hemolysis        
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