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Dog and cat lab tests, one value at a time.

What each value on a blood or urine report measures, how to read it against your laboratory’s interval, and what can make it high or low.

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A ginger cat looking up from a softly lit doorway
Because they’re part of the family.

Lab tests in dogs.

ACTH stimulation test in dogs

How the test works, how to prepare your dog and how the two cortisol results are read, for Cushing’s and Addison’s.

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Albumin and globulin in dogs

Total protein, low albumin, high globulin and the A:G ratio: protein loss, inflammation and dehydration.

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Anemia in dogs

Reading the hematocrit, hemoglobin and reticulocytes: how severe, regenerative or not, and the signs that need a vet now.

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Bile acids test in dogs

The liver function test: fasting and 2-hour samples, the µmol/L cut-offs and portosystemic shunts.

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Blood sugar in dogs

Normal glucose levels, high and low results, hypoglycemia and the sample errors that fake a low value.

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BUN in dogs

What blood urea nitrogen measures, why meals and hydration move it, high and low BUN and the BUN/creatinine ratio.

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CBC blood test for dogs

The complete blood count line by line: red cells, white cells and platelets, with example intervals and the patterns vets look for.

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Cholesterol and triglycerides in dogs

The effect of a meal, hormonal causes, pancreatitis and Miniature Schnauzers.

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Creatinine in dogs

Normal levels, muscle mass and Greyhounds, the IRIS stages and why the trend matters.

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Eosinophils in dogs and cats

What a high eosinophil count means: allergies, parasites and heartworm, and the rarer causes.

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High ALP in dogs

What an elevated alkaline phosphatase (ALP, ALKP) result means, why young dogs and steroids raise it, and what your vet may check next.

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High ALT in dogs

ALT is the liver enzyme that leaks from injured liver cells. How to read the size of the increase and why the trend matters.

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High calcium in dogs and cats

Total and ionized calcium, why albumin matters, and the main causes of hypercalcemia in dogs and cats.

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High liver enzymes in dogs

ALT, ALP, GGT and bilirubin read together: which enzyme rises, by how much, and what the pattern suggests.

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Lipase and amylase in dogs and cats

Routine pancreas enzymes, Spec cPL and fPL cut-offs, and why the kidneys matter.

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Low platelets in dogs

Thrombocytopenia explained: platelet clumps that fake a low count, the bleeding signs to watch and the questions to ask.

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Potassium in dogs and cats

High and low potassium: false results from the sample, urinary blockage, Addison’s disease and older cats with kidney disease.

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Protein in urine in dogs and cats

The dipstick and the UPC ratio, the IRIS cut-offs and the causes of proteinuria beyond the kidneys.

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SDMA in dogs and cats

The kidney value that often rises before creatinine: the 0–14 µg/dL interval, a mildly high result and how it is confirmed.

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Urinalysis for dogs and cats

Specific gravity, the dipstick and the sediment: how to read your pet’s urine test and how it was collected.

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White blood cell count in dogs

High and low WBC, neutrophils and lymphocytes, the stress pattern and inflammation.

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Lab tests in cats.

Anemia in cats

What a low PCV or hematocrit means in a cat, aggregate reticulocytes, and the causes vets look for.

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Blood sugar in cats

Normal glucose levels, why stress raises them so much in cats, and how fructosamine tells stress from diabetes.

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Cat blood work explained

What the CBC and chemistry panel show in cats, how to prepare and the cat-specific pitfalls: stress, platelet clumps and haemolysis.

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Creatinine and BUN in cats

Normal cat creatinine levels, the IRIS stages, the BUN/creatinine ratio and why the trend matters more than one value.

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Eosinophils in dogs and cats

What a high eosinophil count means: allergies, parasites and heartworm, and the rarer causes.

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High calcium in dogs and cats

Total and ionized calcium, why albumin matters, and the main causes of hypercalcemia in dogs and cats.

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High liver enzymes in cats

ALT, ALP and bilirubin in cats: why small ALP rises matter, fatty liver and hyperthyroidism.

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Lipase and amylase in dogs and cats

Routine pancreas enzymes, Spec cPL and fPL cut-offs, and why the kidneys matter.

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Low platelets in cats

Why clumps in the tube so often fake a low count in cats, and what the smear shows.

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Potassium in dogs and cats

High and low potassium: false results from the sample, urinary blockage, Addison’s disease and older cats with kidney disease.

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Protein in urine in dogs and cats

The dipstick and the UPC ratio, the IRIS cut-offs and the causes of proteinuria beyond the kidneys.

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SDMA in dogs and cats

The kidney value that often rises before creatinine: the 0–14 µg/dL interval, a mildly high result and how it is confirmed.

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Urinalysis for dogs and cats

Specific gravity, the dipstick and the sediment: how to read your pet’s urine test and how it was collected.

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WHEN YOU’RE READY

See a sample dog & cat blood work report.

Explore the sample report