Diagnostics

Laboratory Testing

Microscopy

Our lab is equipped with a high powered microscope, equipped with a 100x magnification, oil emersion lens. This is an essential piece of equipment which we all use several times a day to help with diagnosis of many different diseases including:-

Parasites – mites (including mange, ear and fur mites), lice, fleas and a variety of other parasitic insects can be detected and identified using microscopy of skin scrapings and fur brushings. The eggs of gastrointestinal parasites can be detected and identified in faecal preparations.

Ear infections – microscopy of ear wax helps us decide on the best treatment for ear disease as it helps differentiate between bacterial, fungal, parasitic or inflammatory ear conditions.

Timing for mating – Microscopy of a vaginal smear helps us decide what stage of the oestrus cycle a bitch is in which provides information on the best time to mate. For more accurate timing of mating we need to perform blood progesterone testing. Microscopy helps us make decisions on the best time to start monitoring blood progesterone.

Semen evaluation – When performing artificial insemination we use microscopy to assess the quality of the semen

Cytology of lumps and organs – microscopy of a few cells collected from a skin growth or abdominal organ, using a fine needle, often allows us to make a diagnosis on site without the need to send samples to a pathology lab.

Joint fluid – microscopy of synovial fluid collected directly from a joint allows us to determine if there is joint infection or immune mediated disease present.

Bronchoalveolar lavage – For diagnosis of lung diseases we often need to collect a few cells from the lung by instilling and then aspirating saline from the lung tissue. Using this technique we can differentiate between asthma, lung worm, bacterial, fungal, neoplastic (cancer), immune mediated and other diseases.

Cerebrospinal fluid – In cases of severe neurological disease such as meningitis we are able to collect a sample of fluid from the base of the skull for microscopic evaluation.

Blood Testing

For the convenience of our clients and to help with the rapid diagnosis of disease we have equipped our laboratory with an IDEXX Catalyst Dx serum biochemistry analyser and an IDEXX ProCyte Dx Haematology analyser. Both of these are state of the art analysers offering accurate and rapid results. The ability to perform in-house tests means no waiting time for samples to be posted to an outside laboratory. In an emergency situation this can mean the difference between life and death.
Sick Animal Profile– Apart from clinical examination of your pet one of the most helpful diagnostic tools we can use to help determine the cause of your pet’s illness is to run a range of blood tests. These tests help us pinpoint which organs are affected and give clues as to the underlying cause of disease.  Blood tests help us make decisions on what further tests, such as xray, ultrasound or biopsy might be necessary.
Some blood tests are very specific for certain infectious diseases such as canine parvovirus or feline immunodeficiency virus. The ability to make a rapid diagnosis of contagious disease helps us manage the situation to avoid outbreaks of disease.

Pre-anaesthetic health screen- We are able to perform a pre-anaesthetic health screen blood tests directly before your pet is anaesthetised or sedated. This improves overall anaesthetic safety as it alerts us to any health issues that may need special precautions during anaesthesia.

General Health screen– It is a good idea to have a routine health screen blood test performed on your pet once a year to alert your vet to any early health problems that are developing. The earlier a disease is detected the more successful the treatment is likely to be.  The older your pet is, the more important it is to perform a yearly blood test. Our ‘Grey Paws’ scheme for senior pets is designed with just that in mind.

NSAID Health Screen- Pets with arthritis are often treated for pain relief, long-term, using non-steroidal antinflammatory drugs (NSAID’s) such as Rimadyl , Metacam, Previcox. Trocoxil. Pets on long-term NSAID therapy require periodic blood testing for monitoring of liver and kidney function to ensure the body is coping well with long-term therapy.

Therapeutic monitoring- Many pets are on long-term medication and it is important to monitor the effectiveness of treatment by analysing markers specific for that disease. Therapeutic monitoring tests we can perform the same day on-site include:

  • Phenobarbitone levels for monitoring pets with epilepsy
  • T4 (thyroid hormone) for monitoring pets with thyroid issues
  • Fructosamine and glucose for monitoring diabetic pets
  • Cortisol for monitoring pets with Cushings or Addisons disease.
 
We offer a full range of other diagnostic tests performed off-site through NZ Veterinary Pathology (https://www.massey.ac.nz/) based at Massey University. For most tests we receive an answer within 24hrs.

A fast and accurate diagnosis is always the first step toward recovery and better health. With an in-house REM blood analyser, your pet’s blood tests can often be diagnosed without delay so that the best possible treatment plan can begin immediately. This life-saving service is especially useful on weekends, public holidays or at other times when our external laboratory service is unavailable.

Urinalysis
We can tell a lot about the health of your pet from a simple urine sample. In conjunction with a clinical examination of your pet a routine urinalysis can help determine if your pet has:
  • Kidney disease
  • Liver disease
  • Diabetes
  • Cushing’s disease
  • Urinary tract infection or inflammation
  • Bladder stones or crystals
With the combined use of our urinary refractometer (to measure urine concentration), microscope (for looking at cells, bacteria and crystals), biochemistry analyser and urine test strips we can perform most of the urine analysis rapidly within our clinic. If tests suggest infection we often need to send a urine sample away for culture to determine which is the best antibiotic to use for treatment.

Radiology

X-rays (radiographs) are one of the most commonly used diagnostic tools in both human and veterinary medicine. We have invested in a very powerful x-ray machine with advanced capacity and also a state of the art digital x-ray image processor.  Our radiology equipment is more advanced than that available in most clinics in New Zealand and we are able to provide excellent quality images of anything from the very largest dog right down to smallest bird, something that is not feasible with more standard radiology equipment.

Digital image processing offers huge advantages over the older technology of filmprocessing :-

• Excellent quality images every time.
• Much quicker image processing.
• Increased diagnostic accuracy due to the ability to enhance images and zoom in on regions of interest using software similar to photo editing.
• Safe storage of images with instant retrieval.
• Ability to email images to colleagues around the world and to copy images to Cd for pet owners to view at home.
The quality and speed of our system enhances our ability to make a rapid and accurate diagnosis.
Mark Wiseman has completed extra training in the field of veterinary radiology and brings a great deal of experience. He is often called upon for his valued opinion in difficult to diagnose radiology cases.

Ultrasound

Ultrasound machines have been safely used in human medicine for decades. This advanced technology also offers a safe, non-invasive method of diagnosing a variety of conditions in pets. Our modern ultrasound machine has colour flow doppler technology.  The same model is currently used in many hospitals.  It allows us to ‘see’ internal areas of concern such as the liver, kidneys, prostate, and most usefully, the heart. We also routinely use ultrasound for fast and accurate diagnosis of pregnancy in bitches and queens.

Stuart Burrough, gained a great deal of practical skill using ultrasound to diagnose a number of heart conditions while working as Practitioner in Residence at Florida State University in 2000/1.

Endoscopy

An endoscope uses fiber-optic equipment to allow us to see inside the body. This incredible technology means that we can clearly examine many internal organs and body structures without the need for invasive exploratory surgery.
At The Vet Centre we have both a large and small endoscope which allows us to see into small areas such as the nasal cavity and ear canal, and larger areas such as the trachea, oesophagus, stomach and cervix.
 
Endoscopy is often performed under sedation where possible, although a general anaesthetic is sometimes the best option, such as if a biopsy or other secondary procedure is likely upon diagnosis.

Electrocardiograph

An electrocardiograph (or ECG) is a painless and non-invasive test that shows the electrical activity of the heart. By attaching small electrodes to the legs, we can gain a picture of how well the heart is functioning. The results give an indication of whether the heart is enlarged, if there is a heart rhythm disturbance and other cardiac disorders.