Cats’ lives are not stable. Although they eat, drink, and sleep all day when they are not happy, they live a luxurious life like pigs, but they enjoy treatment like their own sons. But in their slow-paced daily life, they also There are a variety of potential threats to their health.

For example, among the cars speeding on the road, although some people drive them, they don’t have eyes. Some people feel that driving a good car needs to be impressive, so they pull the accelerator to make the sound of a tractor and look around like If there is no object, people's reaction is relatively fast and they can respond to the call and avoid it, but those pets, such as cats, are different. They will be curious, hey, what is this thing? It seems to be able to fly... As a result, the moment the cat thinks, the cat They collided with a car. If a cat hits a car, just like a human, hemorrhage is certain, and rescue must require a blood transfusion. If a cat loses 1/3 of its blood, it will be life-threatening. There are also things to pay attention to when giving a blood transfusion to a cat. ​​​​​​

1. Blood supply

The first is the supply of blood source. A good blood donor cat should be docile, weigh more than 4kg, be 1-7 years old, look good, young, and have good blood. Every 4 weeks, 10-15mL of blood can be collected /kg body weight. Blood donor cats should be free of feline leukemia, feline immunodeficiency disease, feline infectious peritonitis, bartonellosis, toxoplasmosis and internal and external parasitic diseases, because some parasites are the vectors of disease.

2. Cross-matching test

A cross-matching test must be done before a cat’s blood transfusion. Cats have three blood types: A, B and AB. If type A blood is transfused into a cat with type A blood, the average life span of red blood cells is 36 days; if type B blood is transfused into a cat with type A blood, the average life span of red blood cells is only 2 days; if type A blood is transfused into a cat with type B blood, the average life span of red blood cells is only 2 days. For cats with this type of blood, the average lifespan of red blood cells is only 1 hour. Cats' blood types remain unchanged throughout their lives. They only need to check their blood types once. Once their blood types are determined, they can receive blood transfusions or blood supplies in time in the future or when they are in urgent need, saving the lives of dying dogs and cats. If the secondary blood matching tests are inconsistent, the recipient cat may have type A blood and the donor cat may have type B blood. If the cross-match test matches, the donor and recipient cats have the same blood type. Cat blood is best collected and transfused immediately when blood transfusion is needed, and should not be stored for a long time.

3. Pre-transfusion examination

Before blood transfusion, the blood or components of the blood bank should be strictly checked. Brown plasma may be contaminated by bacteria. Carefully observe the animal type, breed, blood type, and whether there are cross-matching blood test results on the label. To prevent wrong blood transfusion, causing hemolytic reaction. Infusion of blood or its components is usually not allowed to add other drugs or liquids, because adding hypotonic liquids can causeHemolysis, such as adding 5% glucose solution; adding calcium-containing solutions, such as compound sodium chloride solution, will cause coagulation. However, in order to dilute the red blood cells, reduce the viscosity and speed up the transfusion, 0.9% sodium chloride isotonic solution can be added. When whole blood is transfused and stored, warming is generally not required. Normally adult animals are able to use body temperature to regulate their temperature when whole blood or its components are transfused. Transfusion of cooler whole blood or its components to young animals may be dangerous because it can cause hypothermia. Before infusing stored blood, shake gently and preferably allow to warm to room temperature. Warming the blood can easily cause excessive bacterial growth or hemolysis due to overheating. When red blood cells are heated to 37°C, they will undergo rapid qualitative change and should be discarded if not used immediately. Fresh frozen plasma should be thawed before transfusion. It is best to put the plastic bag containing plasma in a carton before freezing to prevent the bag from breaking when taking it out by hand. Take out the carton from the freezer and warm it first. When the plastic bag becomes warm and soft, take it out with your hands, and then feed it to the animal immediately. Thawing is usually done in a water bath >37°C, and heating in a microwave oven is not recommended.

If we find that the transfused blood does not match the cat’s own blood during blood transfusion, we should stop the blood transfusion immediately and give the cat an infusion immediately. Infusion can maintain the cat’s blood pressure and prevent the occurrence of hypotension. Similarly, if we find that the blood If it is contaminated, blood transfusion must also be stopped.