Dog Chemistry Panel Explained
Last reviewed: April 2026
Your vet ordered a chemistry panel — or maybe a "chem panel" or "metabolic panel." What does it actually test, and what do the results mean? This guide walks through every value, what it screens for, and how to read common abnormal patterns.
Chemistry Panel at a Glance
Have your dog's chemistry panel results?
Upload for a plain-English explanation of every value
What is a Chemistry Panel?
A chemistry panel (also called a metabolic panel, chem panel, or biochemistry panel) measures substances dissolved in your dog's blood — primarily markers that reflect how well the major organs are functioning. It's not the same as a CBC.
Chemistry panel vs. CBC: A CBC counts blood cells — red cells, white cells, platelets. A chemistry panel measures what's dissolved in the blood — organ markers, proteins, sugars, minerals. Both panels together are often called a "full blood panel" or "comprehensive bloodwork."
Your vet typically orders a chemistry panel during wellness exams, before surgery or anesthesia, when your dog is showing signs of illness (lethargy, vomiting, weight loss, excessive thirst), or to monitor a known condition or long-term medication.
Basic vs. Comprehensive Panel
Not all chemistry panels are the same. What's included depends on which panel your vet ordered:
ALT, ALP, BUN, Creatinine, Glucose, Total Protein. Quick screen of liver and kidney function. Often run in-house for same-day results.
Everything in basic, plus AST, GGT, Bilirubin, Albumin, Globulins, Electrolytes, Calcium, Phosphorus, Cholesterol. More complete picture for wellness exams or sick patients.
Comprehensive panel plus SDMA (early kidney marker) and sometimes T4 for thyroid screening. Standard before surgery in dogs 7+.
| Panel Type | What's Included | When It's Used |
|---|---|---|
| Basic | ALT, ALP, BUN, Creatinine, Glucose, Total Protein | Quick in-house screen, medication monitoring |
| Comprehensive | Basic + AST, GGT, Bilirubin, Albumin, Globulins, Electrolytes, Calcium, Phosphorus, Cholesterol | Annual wellness, sick patients |
| Senior / Pre-Anesthetic | Comprehensive + SDMA, sometimes T4 | Dogs 7+, before surgery or anesthesia |
Liver Values
Liver values make up the largest portion of a chemistry panel. The liver performs hundreds of functions — filtering toxins, producing proteins, metabolizing fats — so abnormalities here show up across multiple markers.
The most liver-specific enzyme. Elevated ALT almost always means liver cell damage or death. The higher the value, the more active the damage.
Elevated in liver disease, bile duct problems, Cushing's disease, bone growth, and steroid use. Less liver-specific than ALT — mildly high ALP often needs context.
Found in both liver and muscle. If AST is high, your vet will check CK to determine whether the source is the liver or a muscle injury.
Bile duct marker. Elevated with cholestasis (blocked bile flow), liver disease, or steroid use. High GGT + high ALP strongly suggests bile duct or liver disease.
Byproduct of red blood cell breakdown. Elevated bilirubin causes jaundice (yellow eyes/skin/gums). Can indicate liver disease or rapid RBC destruction.
The main protein made by the liver. Low albumin points to liver failure, kidney protein loss, or GI protein loss — not just liver disease.
| Test | Normal Range | Screens For |
|---|---|---|
| ALT | 10-125 U/L | Active liver cell damage (most liver-specific) |
| ALP | 23-212 U/L | Liver, bile ducts, Cushing's, bone, steroids |
| AST | 10-50 U/L | Liver OR muscle damage |
| GGT | 0-11 U/L | Bile duct disease, cholestasis |
| Total Bilirubin | 0.0-0.9 mg/dL | Liver function, RBC breakdown (jaundice) |
| Albumin | 2.3-4.0 g/dL | Liver protein production, GI/kidney protein loss |
Common liver pattern: ALT elevated + ALP very high + low albumin = significant liver disease. ALT alone elevated is more often early or mild. ALP alone elevated in older dogs can indicate Cushing's disease before other symptoms appear.
Kidney Values
Kidney markers show how well the kidneys are filtering waste from the blood. The challenge with kidney disease is that conventional markers (BUN and creatinine) don't rise until roughly 75% of kidney function is already lost — which is why SDMA was added to most panels.
Waste product filtered by kidneys. Also rises with dehydration, high-protein diet, or GI bleeding — so always interpreted with creatinine.
Most reliable traditional kidney marker. Not as affected by diet or hydration as BUN. Both BUN and creatinine elevated together = kidney disease.
Early kidney disease marker — detects loss of kidney function when only 25-40% is gone, before BUN and creatinine rise. Now standard on most comprehensive panels.
Rises as kidney disease progresses. Important for CKD staging and dietary management.
| Test | Normal Range | Screens For |
|---|---|---|
| BUN | 7-27 mg/dL | Kidney filtration (affected by diet/hydration) |
| Creatinine | 0.5-1.8 mg/dL | Kidney function (most reliable kidney marker) |
| SDMA | 0-14 μg/dL | Early kidney disease (25-40% function lost) |
| Phosphorus | 2.5-6.8 mg/dL | Kidney function, bone metabolism |
Upload your dog's chemistry panel for instant analysis
VetLens reads every value and explains what's flagged, what's normal, and what questions to bring to your vet.
Analyze My Dog's ResultsMetabolic & Other Values
Blood sugar. Persistently high glucose with symptoms (increased thirst, urination, weight loss) points to diabetes. Stress can temporarily elevate glucose.
Sum of albumin and globulins. Reflects nutrition, liver function, immune status, and protein loss through kidneys or GI tract.
Immune system proteins. High globulins suggest chronic infection, inflammation, or cancer. Low globulins can indicate immune deficiency.
High with hypothyroidism, Cushing's, diabetes, or nephrotic syndrome. Low with severe liver disease or malnutrition.
Elevated calcium is concerning in dogs — common causes include cancer (lymphoma, anal sac adenocarcinoma), primary hyperparathyroidism, and vitamin D toxicity.
| Test | Normal Range | Screens For |
|---|---|---|
| Glucose | 74-143 mg/dL | Diabetes, hypoglycemia |
| Total Protein | 5.2-8.2 g/dL | Nutrition, liver, protein loss |
| Globulins | 2.5-4.5 g/dL | Immune/inflammatory response |
| Cholesterol | 110-320 mg/dL | Endocrine disease, fat metabolism |
| Calcium | 9.0-11.3 mg/dL | Cancer, hyperparathyroidism, toxicity |
Electrolytes
Electrolytes regulate fluid balance, nerve signaling, and heart function. Abnormalities here can be life-threatening and are often associated with vomiting, diarrhea, kidney disease, or hormonal disorders.
Hydration and fluid balance. Low sodium can indicate Addison's disease, vomiting/diarrhea, or certain medications.
Critical for heart rhythm. Very low or very high potassium can cause heart arrhythmias. Low potassium (hypokalemia) is common with vomiting, diarrhea, or Addison's.
Follows sodium closely. Useful for detecting acid-base abnormalities alongside sodium and potassium.
| Test | Normal Range | Screens For |
|---|---|---|
| Sodium | 144-160 mEq/L | Hydration, Addison's disease |
| Potassium | 4.1-5.8 mEq/L | Heart rhythm, Addison's, GI losses |
| Chloride | 109-122 mEq/L | Acid-base balance, fluid status |
Na:K ratio: The sodium-to-potassium ratio is a key screen for Addison's disease. A ratio below 27:1 (normal is ~32:1) raises suspicion — especially with low sodium and high potassium together.
Common Abnormal Patterns
Vets rarely interpret a single value in isolation. These are the most common multi-value patterns seen on chemistry panels:
Points to liver disease. Very high ALP with mild ALT elevation is common in Cushing's disease or steroid use. Both significantly elevated suggests active hepatocellular damage.
Both elevated together signals kidney disease. BUN alone elevated is often pre-renal (dehydration, GI bleeding, high protein diet). Creatinine elevated with normal BUN is unusual and warrants repeat testing.
Strongly suggests diabetes mellitus. A single high glucose reading without symptoms may just reflect stress. Fructosamine confirms persistent hyperglycemia over 2-3 weeks.
Classic pattern for Addison's disease. The Na:K ratio below 27 combined with vague symptoms (weakness, GI upset, lethargy) should prompt an ACTH stimulation test.
Common in hypothyroidism and Cushing's disease. Hypothyroid dogs often have markedly elevated cholesterol as their most prominent lab finding.
Suggests chronic inflammation or liver disease. Albumin is made by the liver; globulins are immune proteins that rise with infection or inflammation. Together, this pattern often indicates a chronic disease process.
Not Sure What These Numbers Mean?
Get a vet's take on your dog's results
Talk to a licensed vet online — today • 30% off with code PETS30
We may earn a commission if you purchase through these links, at no extra cost to you.
Related Reading
Dog CBC Explained
The other half of a full blood panel
Dog Bloodwork Normal Ranges
Complete reference chart for all values
How to Read Dog Blood Test Results
Full bloodwork interpretation guide
Dog High ALT Explained
When liver enzymes are elevated
Cushing's Disease in Dogs
Classic cause of high ALP and cholesterol
Addison's Disease in Dogs
Low Na, high K — the chemistry panel clue
Get Your Dog's Chemistry Panel Explained
Upload the report and VetLens will:
- ✓ Identify which values are outside normal range
- ✓ Explain what each abnormality means in plain English
- ✓ Flag multi-value patterns (not just individual values)
- ✓ Suggest questions to bring to your veterinarian
Frequently Asked Questions
What is a dog chemistry panel?
A chemistry panel (also called a metabolic panel or chem panel) measures organ function markers in your dog's blood — liver enzymes, kidney values, glucose, proteins, electrolytes, and minerals. It's different from a CBC, which counts blood cells. Both are often run together as a "full blood panel."
What's the difference between a chemistry panel and a CBC?
A CBC counts red blood cells, white blood cells, and platelets. A chemistry panel measures dissolved markers — liver enzymes, kidney waste products, blood sugar, proteins, minerals. They screen for different conditions and are usually ordered together.
Does my dog need to fast before a chemistry panel?
Yes — 8-12 hours of fasting is ideal. Non-fasting blood can cause lipemia (fat in the blood), which interferes with glucose, bilirubin, and some enzyme readings. A fasted sample gives cleaner results.
What does it mean if multiple values are abnormal?
Multiple abnormalities usually point to a pattern. High ALT + high ALP suggests liver disease. High BUN + high creatinine indicates kidney disease. Low sodium + high potassium raises concern for Addison's disease. Vets interpret these together rather than in isolation.
How often should dogs have a chemistry panel?
Healthy adult dogs: annually. Senior dogs (7+): every 6-12 months. Dogs on long-term medications: every 3-6 months. Before any anesthesia: baseline recommended.
What does it mean if one value is slightly out of range?
A single mildly abnormal value without symptoms is often rechecked rather than treated. Vets look at the overall pattern, trend over time, and clinical signs. Mild ALP elevation in an older dog on steroids, for example, is very different from a 10× elevation in a dog losing weight.