Diagnostic Procedures

Croydon Pet Hospital uses the latest in diagnostic equipment to help us determine a diagnosis for your unwell pet or to ensure we have a ‘baseline’ reference for healthy animals.


In-House Blood Pathology:

We have our own pathology laboratory with the ability to run accurate blood samples including Biochemistry, Thyroid function and Haematology.

These tests are recommended when your pet is unwell or undergoing a general anaesthetic and our team will inform you of the results of your test as soon as possible (usually same day).  We can perform a range of tests from basic health screens to more comprehensive tests and our veterinary team will recommend the best course of action for your pet dependent on their needs.

Blood tests form an extremely important role in obtaining information on your pets health.

Not all illnesses can be seen very easily and it may be subtle changes in your pet that may indicate there might be a problem.  When we take a blood sample it may show significant changes already and this can allow us to intervene before your pet becomes outwardly unwell.  For animals that are showing signs of illness knowing what their internal organs and blood cells are doing makes creating their treatment plan all the more important.

For healthy animals we can run tests to ensure we have a ‘baseline’ reference for any future issues that may arise.  This means we monitor changes in your pet to ascertain whether there are any slight changes or be able to compare recent tests if they become unwell.  Pets enter their senior years from the age of 7 so we recommend a blood test every 1-2yrs and annually from 12yrs onwards.

We also recommend or require blood tests for patients who are taking long-term or specific medications.  This ensures that we are using the best medication and doses for your pet without causing damaging side effects to the organs processing these medicines.



Urine tests can help give us information on your pet in a number of ways.  We obtain samples to check for infection, kidney issues, incontinence issues, diabetes, crystals and a number of other conditions.


Digital Radiology:

Our digital x-rays allow us to take clear images in a fast and safe manner for both our team and your pet.  The quick processing time reduces the length of time your pet needs to be restrained or placed under sedation/general anaesthetic and to provide us with vital information on your pets health.

We can also quickly send images to a range of specialists for assessment if required.



Ultrasound is the non-invasive method of assessing your pets internal organs.  It uses high frequency sound waves to produce images of the internal organs.

It is non-painful but as we need to apply pressure it can be a little uncomfortable for some patients so sedation may be required.  For patients that are anxious or uncooperative we would also recommend sedation for their comfort.

Most ultrasound procedures that we perform are to assess the abdominal area so please be aware that your pet will have a large area of their abdomen clipped.  Unfortunately hair gets in the way of the sound waves and produces a poor image, so clean, clear skin is required but as we say, at least hair is a renewable resource!


Ear & Cell Cytology:

During your consultation the vets may take samples from your pet to examine under the microscope.

These simple looking but important tests can help them determine the bacteria or fungus creating infections on your pet and the appropriate course of treatment.  They are also important in the follow up to ensure that the infection is under control and whether further treatment is required.

Aspirates (removing cells via a needle) of lumps can help us determine the type of cell it is made up of and the need for it’s removal.  In some cases we will need to send the cells away to the external laboratory for assessment, especially if we think we are dealing with malignant cells.


External Laboratory:

When we require further interpretation of your pets blood or are in need of a specialized test we send our samples out to an external laboratory.  This lab is run by specialized veterinary pathologists who will provide us with a report on their findings.  This lab is also used for any tissue samples that are taken after surgical removal.