Benefits of Lab Tests for Dogs and Cats: How Vets Use Them

Lab tests help your vet see inside your dog or cat, beyond what an examination alone can show. A registered veterinarian reads each result together with your pet's signs and history to decide the next step.

Why do vets advise lab tests?

Pets cannot tell us how they feel. Many dogs and cats, cats especially, hide pain and illness until the disease is far along. By the time you see vomiting, weight loss or collapse, the problem may have been growing for some time.

A small sample can answer many questions:

• Blood cells: a Complete Blood Count (CBC) counts the red cells, white cells and platelets in a blood sample. Platelets are the cells that help blood to clot. A CBC can help detect anaemia (low red blood cells) and infection, and it can give clues about tick fever.
• Organ health: tests such as the Liver Function Test (LFT) and the Kidney Function Test (KFT) show how the liver and kidneys are working. Other blood tests measure sugar and body salts.
• Urine: a Urine Routine can give clues about kidney problems, bladder infection and diabetes.
• Stool: a stool test can show worm eggs and some other parasites.

Some changes show up in a report before your pet looks unwell. That gives your vet more time to act.

A test is one piece of the puzzle, not the whole picture. A value outside the usual range does not always mean disease, and a normal value does not always mean good health. This is why your vet combines results with an examination and your pet's history.

How do results help your vet choose the next step?

Without test results, a vet has to rely on signs and examination alone. With results, your vet may be able to:

• Find out which part of the body is affected and how serious it is.
• Tell apart illnesses that look alike, such as the different causes of fever or vomiting.
• Check how well the liver and kidneys are working before choosing a medicine.
• Decide whether your pet needs hospital care or further tests.

Some tests look for a particular germ. Rapid kit tests and ELISA tests look for parts of a germ, or for the antibodies the body makes against it. For example, rapid kits can check dogs for parvovirus and cats for FIV and FeLV, two virus infections of cats. A PCR test looks for the genetic material of a germ when your vet needs a closer look. A Urine Culture & Sensitivity grows the germ from a urine sample and checks which antibiotics are likely to work against it, so your vet does not have to guess.

Why are tests advised before surgery?

Anaesthesia keeps a pet asleep during an operation so that it feels no pain. It also puts extra strain on the body, including the heart, liver and kidneys. Before a planned operation, such as spaying, neutering or removing a lump, many vets ask for pre-anaesthetic tests. These often include a CBC and a check of liver and kidney values. In some pets the vet may add clotting tests or an ECG, which is a tracing of the heartbeat.

The results may lead your vet to change the anaesthetic plan, arrange extra monitoring, or delay surgery until a problem has been treated. Tests cannot remove every risk, but they help the team prepare. The Pre-Anaesthetic Panel groups common pre-surgery blood tests in one booking.

How do tests help with long-term illness?

Kidney disease, liver disease, diabetes, heart disease and hormone problems are often managed for months or years. Repeat tests at planned times can show whether the illness is steady, better or worse, and whether a medicine is causing side effects. Your vet can use the trend to adjust the plan.

A normal result is useful too. It shows that the values checked were in the usual range at that time. It also gives a baseline, which is a record to compare with if your pet falls ill later. A normal report does not rule out every disease, so keep watching your pet's appetite, thirst, weight and energy.

Keep all reports in one place. Reports from the lab are shared on WhatsApp or email and are also kept under My Reports in your account on this website. Old and new values side by side often tell more than a single report.

Related reading: Routine Blood Tests for Healthy Dogs and Cats: How Often?

When to talk to your vet

Ask your vet why each test is advised and what the result may change. Follow any instructions about fasting or sample collection, because they can affect the result. See a vet without delay if your pet has repeated vomiting, pale or yellow gums, bleeding, a swollen painful belly, trouble breathing, seizures or collapse. Do not wait for a routine check.

Pashupatinath Vet Lab provides free sample collection anywhere in Bhopal. Outside the city, samples can be sent to the lab by courier, bus parcel or through your local vet, and the lab coordinates by phone or WhatsApp. Routine tests are normally reported the same day or within 24 hours. For PCR, ELISA and culture, the reporting time is confirmed when you book. You can also browse the test lists for Dog and Cat.