How to Read Your Dog's Blood Panel Results — Complete Guide
Last reviewed: April 2026
Dog blood tests measure organ function, detect disease, and monitor health. Key values to watch: liver enzymes (ALT, ALP), kidney function (BUN, creatinine), and blood cell counts.
Understanding your dog's blood panel results can feel overwhelming, but knowing the basics helps you ask better questions and make informed decisions about your pet's health. Most panels include two parts: the CBC (blood cells) and the chemistry panel (organ function) — this guide covers both.
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Types of Dog Blood Tests
Most blood panels for dogs include two main components:
Complete Blood Count (CBC) — Counts and examines blood cells including red blood cells, white blood cells, and platelets. For detailed CBC interpretation, see our complete guide to dog CBC results.
Chemistry Panel — Measures organ function, blood sugar, proteins, and electrolytes. Common panels include basic metabolic panels and comprehensive metabolic panels.
Quick Reference: Normal Dog Blood Values
| Test | Normal Range | What It Checks |
|---|---|---|
| RBC | 5.5–8.5 million/μL | Anemia, blood loss |
| HCT | 37–55% | Hydration, anemia |
| WBC | 6,000–17,000/μL | Infection, immune system |
| Platelets | 200,000–500,000/μL | Clotting ability |
| ALT | 10–125 U/L | Liver cell damage |
| ALP | 20–150 U/L | Liver, Cushing's, bone |
| AST | 15–66 U/L | Liver, muscle damage |
| GGT | 2–10 U/L | Bile duct, liver disease |
| BUN | 7–27 mg/dL | Kidney function |
| Creatinine | 0.5–1.8 mg/dL | Kidney function |
| SDMA | 0–14 µg/dL | Early kidney disease |
| Glucose | 74–143 mg/dL | Diabetes, hypoglycemia |
| Albumin | 2.3–3.1 g/dL | Liver, nutrition, protein loss |
| Phosphorus | 2.5–6.0 mg/dL | Kidney disease, bone |
| Calcium | 9.1–11.7 mg/dL | Cancer, parathyroid |
| Sodium | 141–156 mEq/L | Hydration, Addison's |
| Potassium | 3.8–5.0 mEq/L | Kidney, Addison's |
*Normal ranges may vary slightly between laboratories. Always consult your veterinarian for interpretation specific to your dog.
Understanding CBC Results
Red Blood Cell Values
RBC (Red Blood Cell Count): Normal range 5.5-8.5 million/μL. Low values suggest anemia; high values may indicate dehydration or other conditions.
Hemoglobin (HGB): Normal range 12-18 g/dL. Carries oxygen throughout the body. Low levels indicate anemia.
Hematocrit (HCT): Normal range 37-55%. Shows percentage of blood made up of red blood cells. Low values mean anemia; high values suggest dehydration.
White Blood Cell Values
WBC (White Blood Cell Count): Normal range 6,000-17,000/μL. High values often indicate infection or inflammation; low values may suggest immune system issues.
Neutrophils, Lymphocytes, Eosinophils: Different types of white blood cells that help identify specific conditions like bacterial infections, allergies, or stress.
Platelet Count
Platelets (PLT): Normal range 200,000-500,000/μL. Essential for blood clotting. Low platelet counts can cause bleeding issues.
Understanding Chemistry Panel Results
Liver Function Tests
ALT (Alanine Aminotransferase): Normal range 10–125 U/L. High ALT levels indicate liver cell damage or stress. Values over 500 U/L warrant urgent workup.
ALP (Alkaline Phosphatase): Normal range 20–150 U/L. Elevated ALP can indicate liver disease, Cushing's disease, or steroid use. Unlike cats, mildly elevated ALP in dogs is common and not always serious.
AST (Aspartate Aminotransferase): Normal range 15–66 U/L. Elevated alongside ALT suggests liver damage; elevated without ALT may indicate muscle injury.
GGT (Gamma-Glutamyltransferase): Normal range 2–10 U/L. More specific than ALP for bile duct disease. Persistently elevated GGT with normal ALT often points to steroid hepatopathy or bile duct obstruction.
Kidney Function Tests
BUN (Blood Urea Nitrogen): Normal range 7–27 mg/dL. High levels may indicate kidney disease, dehydration, or high-protein diet.
Creatinine: Normal range 0.5–1.8 mg/dL. More specific for kidney function than BUN. Elevated levels suggest kidney problems.
SDMA (Symmetric Dimethylarginine): Normal range 0–14 µg/dL. A newer, more sensitive marker that detects kidney disease when only 25–40% of function is lost — up to 17 months before creatinine rises. If SDMA is elevated but creatinine is normal, take it seriously. See our SDMA in dogs guide for staging details.
Other Important Values
Glucose: Normal range 74–143 mg/dL. Persistently high suggests diabetes mellitus. Values below 60 mg/dL are a medical emergency.
Albumin: Normal range 2.3–3.1 g/dL. Low albumin alongside elevated liver enzymes suggests serious liver disease. Low albumin with normal liver values points to protein-losing enteropathy or nephropathy.
Phosphorus: Normal range 2.5–6.0 mg/dL. Elevated phosphorus is a key sign of kidney disease progression — it rises as kidneys lose ability to excrete it.
Calcium: Normal range 9.1–11.7 mg/dL. Persistently high calcium in dogs can indicate lymphoma, anal gland cancer, or hyperparathyroidism and warrants prompt investigation.
Electrolytes (Sodium, Potassium, Chloride): Low sodium with high potassium is a classic pattern for Addison's disease. Potassium above 6.5 mEq/L is a cardiac emergency.
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Upload My Dog's Lab ResultsWhat Abnormal Results Mean
Slightly Abnormal Values
Values slightly outside normal ranges aren't always concerning, especially if your dog seems healthy. Factors that can affect results include:
• Stress from the vet visit
• Recent meals or fasting
• Medications
• Age-related changes
• Laboratory variation
Significantly Abnormal Values
Values well outside normal ranges typically require follow-up testing or treatment. Your vet will consider:
• How far outside normal the value is
• Your dog's clinical signs and symptoms
• Trends in previous bloodwork
• Other lab values and their patterns
When to Repeat Blood Tests
Your veterinarian may recommend repeat testing for:
• Borderline abnormal results to see if they normalize
• Monitoring chronic conditions like kidney or liver disease
• Checking response to treatment
• Pre-anesthetic screening before surgery
• Annual wellness monitoring, especially in senior dogs
For cost planning, our dog bloodwork pricing guide breaks down typical expenses for different blood tests.
Age-Related Considerations
Senior Dogs (7+ Years)
Older dogs are significantly more prone to conditions that show up in bloodwork:
• Kidney disease — rising BUN, creatinine, and SDMA; phosphorus may elevate later
• Liver disease or Cushing's — elevated ALP is especially common in senior dogs, often from steroid hepatopathy
• Diabetes — persistently elevated glucose above 200 mg/dL
• Hypothyroidism — low T4 (if tested); often accompanied by elevated cholesterol
• Anemia — declining HCT and RBC, particularly in dogs with chronic disease
Senior dogs benefit from twice-yearly bloodwork to catch these conditions while treatment is still most effective. See our senior dog health screening guide for recommended test panels by age.
Pattern Recognition: What Combinations Mean
Single abnormal values are often less meaningful than patterns. Here are the most common combinations and what they suggest:
ALT high + ALP high + increased thirst/urination
Classic Cushing's disease pattern. ALP is often dramatically elevated (5–10x normal). Confirm with ACTH stimulation test.
BUN high + creatinine high + SDMA high
Kidney disease. If all three are elevated, kidney function is significantly reduced. If only BUN is high with normal creatinine and SDMA, consider dehydration or high-protein diet first.
ALT very high (>500 U/L) + normal ALP
Acute liver injury — toxin ingestion, xylitol, or mushroom toxicity are common causes. Requires urgent workup.
Low platelets + low RBC (HCT)
Immune-mediated disease — either ITP (platelets only) or Evans syndrome (platelets + RBC). Can deteriorate quickly; same-day vet evaluation recommended.
Low sodium + high potassium
Classic Addison's disease (hypoadrenocorticism) pattern. Na:K ratio below 27 is highly suspicious. Confirm with ACTH stimulation test.
High calcium (persistently >12 mg/dL)
In dogs, hypercalcemia strongly suggests lymphoma, anal gland adenocarcinoma, or primary hyperparathyroidism. Requires urgent investigation regardless of other values.
High WBC (>25,000) + high neutrophils + fever
Significant bacterial infection or severe inflammation. WBC above 40,000 is called leukocytosis and warrants same-day evaluation.
Red Flags: Call Your Vet Today
Most abnormal values can wait for a scheduled appointment. These cannot:
- Platelets below 50,000/μL — high bleeding risk; avoid any trauma or surgery
- HCT below 20% — severe anemia; your dog may need a blood transfusion
- ALT above 1,000 U/L — acute liver failure; identify and remove the cause immediately
- Creatinine above 5.0 mg/dL — advanced kidney failure; IV fluids and urgent management needed
- Glucose below 60 mg/dL — hypoglycemia; can cause seizures and is life-threatening
- Potassium above 6.5 mEq/L — risk of fatal cardiac arrhythmia
- Calcium above 14 mg/dL — hypercalcemic crisis; can cause kidney failure and cardiac effects
Questions to Ask Your Vet
When reviewing your dog's blood test results, consider asking:
• Which values are most important for my dog's age and health status?
• How do these results compare to my dog's previous bloodwork?
• Are any abnormal values related to medications my dog takes?
• What symptoms should I watch for at home?
• When should we recheck these values?
• Are there any dietary or lifestyle changes that might help?
Related Reading
Dog CBC (Complete Blood Count) Explained
Detailed guide to understanding CBC components
Anemia in Dogs
What low red blood cell counts mean
High White Blood Cell Count in Dogs
Understanding elevated WBC
Low White Blood Cell Count in Dogs
Understanding low WBC counts
Dog Bloodwork Costs
Pricing information for different blood tests
Senior Dog Health Screening
Age-specific testing recommendations and schedules
Decode Your Dog's Blood Test Results
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✓ Plain-English explanations of every value
✓ Personalized insights based on breed, age, and health history
✓ Trend analysis comparing results over time
✓ Specific questions to ask your veterinarian
✓ Recommendations for diet, supplements, and monitoring
Analyze My Dog's BloodworkFrequently Asked Questions
What does a normal CBC look like for dogs?
Normal CBC values include RBC 5.5-8.5 million/μL, hemoglobin 12-18 g/dL, hematocrit 37-55%, WBC 6,000-17,000/μL, and platelets 200,000-500,000/μL. Remember that ranges can vary slightly between laboratories.
What are the most important values to watch on dog bloodwork?
Key values include ALT and ALP for liver function, BUN and creatinine for kidney function, glucose for diabetes screening, and red blood cell count for anemia detection. These provide insight into major organ systems.
Should I be worried about slightly abnormal values?
Slightly abnormal values often aren't concerning, especially if your dog feels well. Context matters — age, medications, stress, and trends over time are all important factors your vet will consider.
How often should dogs get blood tests?
Healthy adult dogs typically need annual bloodwork. Senior dogs (7+ years) benefit from twice-yearly testing. Dogs on medications may need more frequent monitoring as recommended by your veterinarian.