An Introduction to Veterinary Diagnostic Laboratory Testing

Everyone wants their dogs to have long and happy lives. This can be accomplished by taking them to the vet regularly. However, diagnostic tests are required for a veterinarian to gain a better understanding of their health. Pets’ outward looks, like humans, may not reflect their interior mood. Effective diagnostic testing, on the other hand, may assist the veterinarian in diagnosing and treating a problem before it worsens. The following diagnostic tests are usually ordered for your pet:

Clinical Chemistry

The examination of a specimen’s chemical makeup is known as clinical chemistry. Other bodily fluids may also be studied. Typically, the sample is your pet’s blood’s liquid portion (serum or plasma). Clinical chemistry tests are necessary for determining the health of different organs (kidneys, liver, etc.).

They can help diagnose disorders, including diabetes and pancreatitis. These tests may also evaluate your pet’s reaction to therapy.


Individual cells, their structure and origin, function(s), and death are all studied in cytology. Pathologists can inform veterinarians about the cells in your pet’s body. Fine-needle biopsy collects tissue or fluid samples. Then slides are created and stained for microscopic inspection to determine the types of cells present.

Fluid Analysis

Aside from blood, the fluid analysis checks other body fluids (urine, joint fluid, etc.). Body fluid experts work with other specialists to provide information about your pet’s health. Fluid analysis often entails searching for cells and proteins in the sample. Clinical chemistry testing for specific drugs may also be performed.


Hematology studies the biological components of the blood and how they change health and disease. The most common type of blood test is a full blood count. This test provides basic information about anemia, inflammation, and clotting by assessing the number and kind of cells circulating in the bloodstream. If you see any inflammation in your pet’s gums, look for pet dental services to determine whether lab testing is required.


Histology studies plant and animal tissues’ microscopic anatomy (structure). Histology pathologists evaluate small tissue samples to assess whether they are healthy or ill. Pathologists have studied illness causes and effects and can frequently pinpoint the reason for abnormal tissue shapes or cells.

If your veterinarian from sites like suspects cancer or another condition causing tissue changes, he or she will frequently send small tissue samples to a pathologist.


Microbiology studies single-celled organisms like bacteria, viruses, fungi, and other microbes. Microbiology professionals in a veterinary laboratory can perform various tests to detect signs of infection in your pet. A common strategy is to cultivate viruses, bacteria, and fungi before identifying them.


Serology is the analysis of blood serum and other body fluids. The majority of serologic tests assess the number of antibodies present and reactive to a certain pathogenic germ (called the titer). A high level of antibodies, or an increase in their level between two samples taken a few weeks apart, suggests that your pet was exposed to the bacterium, and its immune system generated antibodies against the infectious agent.


Toxicology is the study of how toxins affect animals. Let’s assume that your emergency animal hospital believes your pet has been poisoned, they will collect samples for toxicologic testing to assess the type of toxin present and the amount of potential damage.


Veterinarians use various veterinary technology to diagnose diseases, track disease progression or drug response, and test healthy animals for underlying ailments. Most veterinary hospitals feature a diagnostic laboratory packed with numerous diagnostic tools to quickly examine your pet’s health and determine the required therapy. When you observe unusual symptoms or behavior in your pet, schedule an appointment with a reputable clinic that offers these services.

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