Category: veterinary-procedures-rabbits

An MRI scanner consists of a box-like machine with a tunnel through the centre that is open at both ends. Your rabbit will be placed onto the motorised table in the centre of the tunnel. This moves inside the machine to create the scan with a small receiving device placed behind/around your rabbit.

An MRI scan relies on a strong magnetic field to move around and react with different atoms within the body to create the image.

The operator is located in a different room, and the veterinary team will also monitor your rabbit from here.

MRI scanners are very noisy which is another reason why your rabbit is very likely to be sedated or placed under general anaesthesia, and can take around half an hour to complete, during which there must be minimal movement to prevent blurring of the scan images.

CT, also known as CAT scanning, is a non-invasive imaging modality that uses x-rays to scan the rabbit to create cross-sectional pictures of the animal which can be used to evaluate anatomy, function and pathology of many structures.

In rabbits, CT is particularly useful for viewing bony changes, such as those associated with advanced dental disease.

A CT scanner is a large box-like machine with a short tunnel or hole running through the centre. Your rabbit will be placed on the examination table which then moves in and out of the tunnel.

The x-ray tube and electronic x-ray detectors are located opposite each other in a ring, called a gantry, and rotate around your rabbit to create the scan image.

The CT scan is controlled from a separate room, where the information is processed and from where the veterinary team can monitor your rabbit.

• Tumours, especially brain tumours
• Abscesses within the body/skull
• Fluid within the tympanic bullae or the ear (inner and middle ear disease)
• Tumours within bone or the chest/abdomen
• Central nervous disease, such as epilepsy
• Assessing the vertebral column
• Upper respiratory tract disease

CT scanning is normally the technique of choice for assessing the skull and calcified structures, whereas MRI is mostly used for evaluating soft tissue.

During the scanning process of both CT and MRI, your rabbit must stay totally still to get a good diagnostic image. Therefore, to ensure your rabbit is immobile during the procedure, your vet will need to either sedate or anaesthetise your rabbit. General anaesthesia is usually required, even in the most relaxed and well behaved rabbit.

There are a whole battery of tests which can be done on different types of samples, although not all are used to investigate every disease. Some samples are more easy to obtain than others and the effects that testing has on your rabbit will vary.

It is possible to tell a great deal about your rabbit’s health or disease from the concentration of different chemicals in the blood. The proportion of different types of blood cells and the presence of proteins called antibodies (which are produced as part of the body’s defence against disease), may tell your vet how well your pet is fighting the disease.

Samples are usually taken from a vein in the ear using a hypodermic needle and syringe. A patch of fur over the vein is shaved and the skin disinfected with surgical alcohol to clean the skin and allow your vet to see the vein more easily. A few millilitres (about a teaspoon) of blood are put into special containers to prevent it clotting.

Blood sampling is not painful although some rabbits don’t like being held whilst the sample is taken. Some bruising may occur if your rabbit has delicate skin or struggles when the sample is being taken. The puncture hole will heal quickly.

These are carried out to check for diseases such as diabetes or cystitis. Urine can be checked to see if it contains proteins, sugar or signs of infection.

Urine samples can be collected by catching a few drops of urine in a thoroughly cleaned container as the cat empties its bladder. However, this is sometimes difficult and it may be easier to take urine from the bottom of a clean litter tray. The sample should be kept in a sealed bottle inside a refrigerator and tested as soon as possible.

When it is not possible to wait for a naturally produced urine sample your vet may collect one using a catheter (a special tube) passed directly into the bladder through the urethra, or using a needle inserted into the bladder through the skin over the belly. It may be necessary for your vet to sedate your cat to collect a sample in this way, but these techniques are no more complicated or dangerous than taking a blood sample.

Small samples of faeces often help to identify diseases of the digestive system. The sample may be tested to see if any unusual bacteria are growing that indicate an infection in the intestines. Further tests may be carried out to see if your cat is unable to digest certain foods or if its faeces contain eggs from parasitic worms.

A cat’s eyes, ears and nose or skin can often become infected with disease-causing bacteria,viruses or fungi. Swabs are taken by gently rubbing the affected area with a small piece of cotton wool. The swab is then either transferred onto a glass slide for examination under a microscope or cultured and tested to see if bacteria can be grown. The results of a culture test may take a few weeks or longer, (in the case of some slow growing bugs).

Cats with skin disease will be tested to see if they are infected with parasitic mites. The skin is scraped gently with the edge of a scalpel blade until bleeding occurs. This may cause minor discomfort to some cats although others tolerate it fairly well. There are usually only small numbers of mites and a large number of scrapings may have to be taken from several areas before finding them. The skin sample is transferred onto a glass slide and examined under a microsope.

If a cat has a growth on its body it is normal to take a tissue biopsy. This involves removing a small part of the lump which is then examined under a microscope to see what sort of cells it contains. Cell samples may also be collected by putting a needle into the lump and sucking out some cells.

Fluid samples may be taken from the airways via a tube placed in the throat, or the digestive system via an endoscope passed into the stomach. In this way your vet can obtain more information without performing a full operation on your cat.

With many diseases it is not possible for your vet to come up with an instant diagnosis. Your animal may have to undergo a number of tests so that the vet can rule out possible causes of the illness. While some diseases can be confirmed using a single test, others will need a large number (profile) or a sequence of tests on one or more tissues or body fluids. There are occasions when repeat tests may be needed to be taken over a period of time, eg looking for changes in antibody levels in the blood over several weeks.

Your vet may need to perform diagnostic tests on your cat, or on samples from your cat, to help provide the best possible care for your pet. If you are unsure what a test involves or why your vet needs to do it, please ask for a more detailed explanation.