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Blood test

A representation of Blood test

A blood test is an important method of checking your dog's health. It can reveal various diseases or disorders that would otherwise go unnoticed. In this article, you will find out what a blood test for dogs involves, what values are measured and how you can interpret the results.

What is a blood test in dogs?

A blood test in dogs is a laboratory analysis of a blood sample taken from a vein or capillary vessel. The blood sample is examined for various parameters that provide information about organ function, the immune system, metabolism, fluid balance and blood clotting. A blood test can also provide indications of infections, inflammation, anemia, cancer or other diseases.

What values are measured during a blood test in dogs?

There are different types of blood tests in dogs, which measure different values depending on the need. The most common are

  • The blood count: this measures the number and ratio of different cells in the blood, such as red blood cells (erythrocytes), white blood cells (leukocytes) and platelets (thrombocytes). The blood count provides information about the oxygen supply, the immune system and the blood's ability to clot.
  • The serum profile: It measures the concentration of various substances in the serum, the liquid component of the blood. The serum profile provides information about the function of the liver, kidneys, pancreas, thyroid gland and other organs. It also measures the levels of glucose, protein, electrolytes and other substances in the blood.
  • Urinalysis: This measures the composition of the urine that is filtered from the blood. Urinalysis provides information about kidney function, fluid balance and metabolism. It can also provide indications of infections or inflammation in the urinary tract.

How are the results of a blood test in dogs interpreted?

The results of a blood test in dogs are compared with reference values that indicate the normal range for healthy dogs. The reference values can vary depending on the laboratory, breed, age and sex of the dog. It is therefore important that you discuss the results with your vet, who can interpret them in the context of your dog's clinical signs and history.

Deviations from the reference values can have various causes. Some are harmless or transient, others are serious or chronic. Some are specific to a particular disease, others are non-specific or may indicate multiple diseases. Some require immediate treatment, others require further diagnostics or regular monitoring.

A blood test in dogs is therefore a valuable tool for assessing your dog's health. It can help you to detect and treat or prevent diseases at an early stage. You should treat your dog to regular blood tests, especially as they get older or have chronic illnesses.


The authors assume that a veterinarian should be consulted if an animal is ill and that medication should only be taken after consultation with a doctor or pharmacist. Only an individual examination can lead to a diagnosis and treatment decision.

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