How to Read a Canine Blood Count (CBC): Normal Values Explained
June 13, 2026 · 9 min read
If your vet ordered a blood count (CBC) for your dog, the report arrives full of acronyms (WBC, RBC, HCT, PLT…) and numbers that mean nothing on their own. This guide helps you understand what each one measures and what counts as a normal value, so you walk into the appointment with the right questions.
Important: this guide is educational. Ranges vary between labs and with age and breed. Only your vet can interpret the result in the context of your pet.
What is a blood count?
The complete blood count (CBC) analyzes the three families of blood cells: red cells, white cells and platelets. It’s one of the most common tests because, from a single sample, it hints at anemia, infection, inflammation, dehydration and clotting problems.
The red series (red blood cells)
Red blood cells carry oxygen. Here the focus is whether there’s anemia (too few) or dehydration/polycythemia (too many).
- RBC: number of red blood cells.
- HGB (hemoglobin): the protein that carries oxygen.
- HCT (hematocrit): percentage of blood made up of red cells.
- MCV, MCH, MCHC: the size and hemoglobin content of each cell — they help classify the type of anemia.
The white series (white blood cells)
These are the defense cells. A high total usually points to infection or inflammation; a low one, to certain viruses or bone-marrow problems. The breakdown by type (neutrophils, lymphocytes, monocytes) sharpens the diagnosis a lot.
Platelets
Platelets (PLT) are responsible for clotting. A very low value can mean bleeding; a high one, inflammation or certain diseases.
Normal values table (adult dog)
Reference ranges for a healthy adult dog (for orientation):
| Parameter | Range | Unit |
|---|---|---|
| White cells (WBC) | 6.0 – 17.0 | 10³/µL |
| Neutrophils | 3.0 – 11.5 | 10³/µL |
| Lymphocytes | 1.0 – 4.8 | 10³/µL |
| Monocytes | 0.15 – 1.35 | 10³/µL |
| Red cells (RBC) | 5.5 – 8.5 | 10⁶/µL |
| Hemoglobin (HGB) | 12.0 – 18.0 | g/dL |
| Hematocrit (HCT) | 37 – 55 | % |
| MCV | 60 – 77 | fL |
| MCH | 19.5 – 24.5 | pg |
| MCHC | 32 – 36 | g/dL |
| RDW | 12 – 16 | % |
| Platelets (PLT) | 200 – 500 | 10³/µL |
| MPV | 7 – 13 | fL |
What if a value is out of range?
Don’t panic: a single slightly off value rarely means something serious on its own. What matters is the pattern (several values together), the trend versus previous tests, and your pet’s symptoms. That’s why it’s so useful to keep blood counts over time and be able to compare them.
In Furtale you can photograph the report and AI logs each value into your pet’s history, ready to compare with the next one. Create your free account.