![]() ![]() Regenerative anaemias are those in which the bone marrow responds to the anaemia appropriately by trying to produce new RBCs to replace those that have been lost. Types of anaemiaĪnaemia can usually be broadly divided into regenerative and non-regenerative forms. Also, cats suffer from a number of different diseases and infections that can cause anaemia. This is partly because their RBCs have a shorter lifespan (around 70 days) than many other animals (around 110-120 days in dogs and humans) – this means they have a higher turnover of RBCs and anaemia can, therefore, develop quite rapidly if anything interferes with this. ![]() Unfortunately, cats are particularly prone to the development of anaemia. Untreated, anaemia can be a debilitating disease, and if severe can be life-threatening. In severe cases, it will also cause an increased respiratory effort as the animal tries to get more oxygen in the lungs to improve the level of oxygen in the circulation. When animals become anaemic, their ability to absorb oxygen from the air and deliver it to tissues in the body becomes very compromised and this can lead to many different problems, but is often manifested as weakness and lethargy. Haemoglobin in the RBCs also gives blood its characteristic red colour. As these RBCs circulate around the body, the haemoglobin can then release the oxygen in the tissues of the body where it is vital to maintain life. When we breathe in and out, oxygen is taken out of the air in the lungs and is absorbed into the blood, being bound to haemoglobin in the RBCs. Red blood cells are a special type of cell that contain haemoglobin – this is a special iron-containing molecule that efficiently binds oxygen. Anaemia is the term used to describe reduced numbers of red blood cells (RBCs or erythrocytes) in the circulation. ![]()
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