Pre-Anaesthetic Bloods

Pre-Anaesthetic Bloods 

Prior to all anaesthetics we offer and recommend pre-anaesthetic bloods. Pre-anaesthetic bloods evaluate the functioning of those vital organs that are essential in processing and excreting anaesthetic drugs.

Current generation anaesthetic drugs are the safest ever produced, but that does not mean that anaesthetic risk is zero. The risk to patients depends on several factors including age, presence of disease, having a full stomach, allergies, stress, amount of body fat and even breed. Minimising these risk factors is the logical step before having an anaesthetic.

Patient history and a physical examination will provide us with a large amount of information but there is information that is impossible to know without blood tests. Pre anaesthetic blood testing determines kidney and liver function, which are important for elimination of anaesthetics and other drugs from the body and checks for anaemia or evidence of infection. As an animal ages, its risk of developing diseases such as kidney failure, liver failure and heart disease increases. These diseases give it a greater anaesthetic risk, meaning it is less likely to cope with the anaesthetic. It is therefore important that we are able to identify these conditions prior to placing your pet under an anaesthetic.

If you chose to run pre-anaesthetic bloods, a small blood sample will be taken from your pet and run on our in-house haematology and biochemistry analysis machine. This machine evaluates both the red and white blood cells as well as a number of enzymes and analytes which are associated with organs, such as the liver and kidney.

This test can be done on the day of the operation/anaesthetic, which means that there will be no delay in undertaking the procedure, unless the results indicate that the animal is not fit to cope with the anaesthetic which the procedure can be postponed and treatment or further testing can be performed.

If the results of the pre-anaesthetic blood tests are normal, then we can continue with confidence and know that anaesthetic risk has been minimised. Minimising the potential risks involved with anaesthesia provides everyone with peace of mind and safer anaesthetics for your pets.