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Veterinary Clinic, LLC
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Understanding your pet's
blood work
“CBC, chem seven, stat!"
This may sound familiar If you watch such popular television dramas as ER, Chicago Hope, and Emergency Vets. But do you know what the
terms mean? Blood tests help doctors determine causes of Illness accurately,
safely, and quickly and let us monitor the progress of medical treatments. To
help you understand your pet's test results, this guide explains common tests.
A checkmark in any box indicates a significant abnormal finding on your pet's
blood work. If you have questions, ask any staff member. We want you to
understand our recommendations and be a partner in your pet's care.
Complete blood count (CBC)
This is the most common blood
test performed on pets and people. A CBC gives information on hydration status,
anemia, infection, the blood's clotting ability, and the ability of the immune
system to respond. This test is essential for pets with fevers, vomiting,
diarrhea, weakness, pale gums, or loss of appetite. If your pet needs surgery,
a CBC can detect bleeding disorders or other unseen abnormalities.
o HCT (hematocrit)
measures the percentage of red blood cells to detect anemia and dehydration.
o Hb and MCHC (hemoglobin and mean corpuscular hemoglobin
concentration) are the oxygen-carrying pigments of red blood cells.
o WBC (white blood
cell count) measures the body's immune cells. Increases or decreases indicate
certain diseases or infections.
o GRANS and L/M (granulocytes and lymphocytes/monocytes) are specific
types of white blood cells.
o EOS (eosinophils)
are a specific type of white blood cells that may Indicate allergic or
parasitic conditions.
o PLT (platelet count) measures cells that
form blood clots.
o RETICS (reticulocytes) are immature red blood cells. High levels
indicate regenerative anemia.
o FIBR (fibrinogen) Is an important clotting factor. High levels may
indicate a dog is 30 to 40 days pregnant
Blood
chemistries
These common blood serum
tests evaluate organ function, electrolyte status, hormone levels, and more.
They are important in evaluating older pets, pets with vomiting and diarrhea or
toxin exposure, pets receiving long-term medications, and health before
anesthesia.
o ALB (albumin) Is a
serum protein that helps evaluate hydration, hemorrhage, and intestinal, liver,
and kidney disease.
o ALKP (alkaline
phosphatase) elevations may indicate liver damage, Cushing's disease, and
active bone growth in young pets. This test is especially significant in cats.
o ALT (alanine
aminotransferase) is a sensitive indicator of active liver damage but doesn't
indicate the cause.
o AMYL (amylase)
elevations show pancreatitis or kidney disease.
o AST (aspartate
aminotransferase) increases may indicate liver, heart, or skeletal muscle
damage.
o BUN (blood urea
nitrogen) indicates kidney function. An increased blood level is called
azotemia and can be caused by kidney, liver, and heart disease, urethral
obstruction, shock, and dehydration.
o Ca (calcium)
deviations can indicate a variety of diseases. Tumors, hyperparathyroidism,
kidney disease, and low albumin are just a few of the conditions that alter
serum calcium.
o CHOL (cholesterol)
is used to supplement diagnosis of hypothyroidism, liver disease, Cushing's
disease, and diabetes mellitus.
o CI (chloride) is an
electrolyte often lost with vomiting and Addison's disease. Elevations often
indicate dehydration.
o Cortisol is a
hormone that is measured in tests for Cushing's disease (the low-dose
dexamethasone suppression test) and Addison's disease (ACTH stimulation test).
o CREA (creatinine)
reveals kidney function. This test helps distinguish between kidney and
non-kidney causes of elevated BUN.
o GGT (gamma glutamyl
transferase) is an enzyme that indicates liver disease or corticosteroid
excess.
o GLOB (globulin) is a
blood protein that often increases with chronic inflammation and certain
disease states.
o GLU (glucose) Is a
blood sugar. Elevated levels may indicate diabetes mellitus. Low levels can
cause collapse, seizures, or coma.
o K (potassium) is an
electrolyte lost with vomiting, diarrhea, or excessive urination. Increased
levels may indicate kidney failure, Addison's disease, dehydration, and
urethral obstruction. High levels can lead to cardiac arrest.
o LIP (lipase) is an
enzyme that may indicate pancreatitis.
o Na (sodium) is an
electrolyte lost with vomiting, diarrhea, and kidney and Addison's disease.
This test helps indicate hydration status.
o PHOS (phosphorus) elevations are often associated with
kidney disease, hyperthyroidism, and bleeding disorders.
o TBIL (total bilirubin) elevations may indicate liver or
hemolytic disease. This test helps identify bile duct problems and certain
types of anemia.
o TP (total protein) indicates hydration status and
provides additional information about the liver, kidneys, and infectious
diseases.
o T4 (thyroxine) is a thyroid hormone. Decreased levels
often signal hypothyroidism in dogs, while high levels Indicate hyperthyroidism
in cats.