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I Uploaded My Dog's Blood Test Results — What Do These Numbers Mean?

A 6-year-old mixed breed with routine bloodwork showing ALT 280, ALP 220, rest normal. Walk through CBC/Chemistry, hepatic differentials, and next steps.

9 min read2025-10-21
dog blood test resultshigh ALT dogspet bloodwork explainedliver values dog
PetMed AI Veterinary TeamVerified

Reviewed by Licensed DVM Professionals

Evidence-BasedPeer-Reviewed SourcesLast updated: 2025-10-21
Case Presentation

Your 6-year-old mixed breed, Buddy, had routine bloodwork at his annual exam. The vet called: "His liver values are a bit elevated. Nothing alarming, but we should follow up." You have the printed results. ALT: 280 (reference 10-125). ALP: 220 (reference 23-212). Everything else looks normal. What does this mean?

ALT 280
(ref 10-125)
ALP 220
(ref 23-212)
6 yr
Age
Mixed
Breed

🩺 Walk Through the CBC and Chemistry Panel

Routine bloodwork typically includes a CBC (complete blood count)—red cells, white cells, platelets—and a chemistry panel—organ function and electrolytes. For Buddy, the CBC is normal. On the chemistry, the liver enzymes stand out. ALT (alanine aminotransferase) is found primarily in hepatocytes; elevation suggests hepatocellular injury. ALP (alkaline phosphatase) is found in liver, bone, intestine, and placenta; elevation can indicate cholestasis, hepatic injury, or even bone growth (in young dogs).

The Bloodwork OCR lets you upload a photo of the lab report. The AI parses the values and provides an educational explanation—helpful for understanding before your follow-up visit.

🔬 What ALT and ALP Mean

ALT is relatively liver-specific. Elevation suggests liver cell damage—from inflammation, toxins, infection, or metabolic disease. ALP can be elevated from liver (cholestasis, drug induction), bone (growth, disease), or other sources. Corticosteroids induce ALP in dogs (steroid ALP). Mild to moderate elevations may be incidental (e.g., after a recent meal, stress) or may indicate early disease. The pattern and magnitude guide next steps.

📋 Hepatic Differentials

The Internal Medicine Specialist discusses differentials for elevated liver enzymes: Hepatitis (infectious, immune-mediated, idiopathic), hepatic lipidosis, portosystemic shunt, neoplasia, drug-induced (e.g., phenobarbital, NSAIDs), or extrahepatic (Cushing's, hypothyroidism, pancreatitis). History, physical exam, and additional testing narrow the list.

🩺 Next Steps: Bile Acids, Ultrasound

To assess liver function (not just enzyme leakage), fasting and post-prandial bile acids are often recommended. Bile acids test the liver's ability to process and recirculate bile—abnormal values suggest dysfunction. Abdominal ultrasound evaluates liver size, echogenicity, and architecture; it can identify masses, nodules, or vascular anomalies. In some cases, a liver biopsy is needed for definitive diagnosis.

📋 How to Talk to Your Vet

The General Vet AI suggests questions to ask: "What could be causing these elevations?" "Do we need more tests, and which ones?" "Is this urgent or can we monitor?" "Are there any medications or supplements that could affect these values?" Bring the lab report, note any symptoms (lethargy, vomiting, appetite changes), and list all medications and supplements. PetMed AI tools support education—they do not replace veterinary diagnosis or treatment decisions.

Use Bloodwork OCR to upload lab reports for AI-parsed explanation, and the Internal Medicine Specialist for hepatic differential discussion.


Key Takeaways
  • ALT indicates hepatocellular injury; ALP can reflect liver, bone, or drug effects.
  • Mild elevations may be incidental or early disease—follow-up is important.
  • Bile acids and ultrasound are common next steps for persistent elevation.
  • Bloodwork OCR helps you understand the numbers—discuss interpretation with your vet.
  • Bring your questions to the follow-up visit. Your vet will tailor the plan to your dog.

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