Because what you can’t see could still be affecting your pet’s health
Your pet may look perfectly fine on the outside—eating, playing, tail wagging or purring as usual—but inside, things can sometimes be a little less rosy. That’s where routine blood testing becomes a game-changer. It’s one of the most effective ways we catch early signs of disease—before symptoms even appear.
Whether your pet is a bouncy Labrador, a chilled-out cat, or a senior spaniel, blood tests can give us a clearer picture of what’s going on under the surface.
What Can a Blood Test Actually Tell Us?
A standard blood panel can reveal:
- Organ function – liver, kidneys, pancreas
- Red and white blood cell levels – to spot anaemia, infection, inflammation, or even certain cancers
- Electrolytes and hydration status
- Thyroid hormone levels (especially in older cats or sluggish dogs)
- Diabetes indicators
- Clotting ability – important before surgery
It’s like a health MOT for your pet—checking the things we can’t see with a stethoscope or thermometer.
Top Reasons We Recommend Routine Blood Tests
1. Before Surgery or Anaesthesia
Whether your pet is having a spay, lump removal or dental procedure, a pre-op blood test helps us spot hidden risks—like poor kidney function or clotting issues—before we proceed.
It gives us peace of mind and helps tailor the safest anaesthetic plan possible.
2. As Part of a Senior Pet Health Check
Once your dog or cat hits around age 7 (or sooner for giant breeds), their risk for diseases like kidney failure, liver disease, or thyroid issues increases. Many of these start silently, with no obvious symptoms until damage is done.
Routine blood testing allows us to catch problems early, when they’re easier (and cheaper) to manage.
3. If Your Pet Is Unwell—Even Vaguely
Lethargy, weight loss, increased drinking, vomiting, or “just not quite right”? Bloods are often our first port of call to narrow down the problem.
They can help rule out organ disease, infection, or endocrine issues (like Addison’s or hyperthyroidism) and guide the next steps.
4. For Monitoring Long-Term Medications
If your pet is on long-term meds, like anti-seizure tablets, steroids, or arthritis treatments, regular blood testing helps us make sure their liver, kidneys, and other systems are tolerating them well.
It’s all about balancing effective treatment with safe dosing.
5. Before Starting Parasite or Travel Medications
If you’re travelling with your pet (or using certain parasite preventatives), blood tests can be used to check for heartworm or other vector-borne diseases—especially if you’re heading abroad.
Case Example: Oscar the “Healthy” Springer
Oscar, a 9-year-old springer spaniel, came in for a dental and pre-op blood test. His owner thought he was totally fine—just slowing down a little with age.
The blood test showed early-stage kidney disease—a surprise to everyone.
Because we caught it early, we adjusted his diet and dental treatment, started regular monitoring, and now he’s doing brilliantly. Without the test, we wouldn’t have known until much later, when symptoms started and the damage was harder to manage.
How Often Should My Pet Have a Blood Test?
It depends on their age, breed, and medical history—but as a general guide:
- Young adults (under 7): Only as needed (before surgery, illness, etc.)
- Seniors (7+): Once a year as part of their health check
- Pets on long-term medication: Every 3–6 months, depending on the treatment
We’ll always talk you through whether a blood test is recommended—and never do anything without your consent.
Is It Worth the Cost?
Undoubtedly blood tests add to the vet bill. But they’re far less expensive than treating advanced disease, and they can help you avoid emergency vet visits (and their costs) down the line.
Final Thought: Know More, Worry Less
Our pets can’t tell us when something’s wrong. Blood tests give them a voice—and give us, as vets and owners, the information we need to keep them healthier for longer.
If your pet is due a check-up, having surgery, or entering their golden years, ask us about blood testing.
Want to book a wellness blood test for your pet? Call us on 01628 624935 or ask one of our nurses next time you’re in.
New family member? Take a look at our Puppy & Kitten Info Sheets.
You can even download them and pass them on to friends and family.
