Your Pet Seems Healthy, So Do They Really Need Bloodwork?
Tempe Lake Veterinary Clinic & Pet Resort
Your dog is eating, playing, and ready for a walk. Your cat is still demanding breakfast at exactly the same time every morning. Everything seems normal, so why would your veterinarian recommend bloodwork?
Because sometimes the best time to learn about your pet’s health is before they start acting sick.
At Tempe Lake Veterinary Clinic & Pet Resort, bloodwork can be used for everything from routine wellness care to illness, surgery, and long-term medication monitoring. How often we recommend it depends on the pet in front of us.
Here is what bloodwork can tell us and how those recommendations may change as your dog or cat gets older.
What Are We Looking For?
Bloodwork gives us information that we cannot get from a physical exam alone.
A complete blood count looks at red blood cells, white blood cells, and platelets. A chemistry panel helps us evaluate things like kidney and liver values, blood sugar, proteins, and electrolytes.
Sometimes we pair bloodwork with urine testing or add another test based on your pet’s age or symptoms. There is no reason to treat every pet exactly the same.
Think of it less as one big “blood test” and more as a toolbox. We choose the tools that help answer the question we have about your pet.
Puppies and Kittens: Usually Healthy, but Not Invisible on the Inside
Young pets spend a lot of time at the vet during their first year. Most of those visits focus on exams, vaccines, parasite prevention, nutrition, and development.
That does not mean your puppy or kitten needs bloodwork at every appointment.
One time we may recommend it is before anesthesia. If your pet is scheduled for a spay, neuter, or another procedure, pre-anesthetic bloodwork gives us a better look at their health before medications are given.
We may also recommend testing if a puppy or kitten has repeated vomiting or diarrhea, poor appetite, unusual tiredness, weakness, or another symptom that needs a closer look.
Adult Pets: This Is When Baselines Become Useful
Healthy adult pets can go a long time without giving us any reason to suspect a problem.
That is good news, but routine bloodwork can still be useful.
When your pet has bloodwork while they are healthy, we start building a history. Instead of looking at one result in isolation, we can compare it with what was normal for your pet a year or two ago.
That is especially useful as they get older.
How often should a healthy adult have bloodwork? It depends. Some pets may have it as part of annual preventive care. Others may follow a different schedule based on their age, lifestyle, medical history, or previous results.
If your dog boards, travels, spends a lot of time outdoors, or has other lifestyle factors that affect their health risks, we may recommend additional screening too.
Senior Pets: More Check-Ins Can Catch Subtle Changes
Pets are surprisingly good at hiding illness, and cats deserve an honorary degree in it.
A senior cat may lose weight gradually while still eating. An older dog may drink more water or need to go outside more often. Sometimes those changes are easy to miss or get blamed on age.
Bloodwork can help us look for medical reasons behind those changes.
As pets enter their senior years, we may recommend bloodwork more often. For some pets that could mean once a year. For others, twice-yearly testing or another schedule may make more sense.
Age is not the only factor. A senior pet with consistently normal results and no medications may have a different plan from one managing kidney disease, diabetes, thyroid disease, or another chronic condition.
When “Something Seems Off” Is Enough Reason to Call
You do not have to wait until your pet looks seriously ill.
Changes in appetite, weight, thirst, urination, energy, digestion, or behavior can all be worth mentioning.
If your pet is vomiting repeatedly, has ongoing diarrhea, seems weak, stops eating, drinks much more than usual, loses weight without explanation, or simply does not seem like themselves, bloodwork may be one of the first steps we recommend.
The results do not always give us the entire answer, but they can point us in the right direction.
Pets on Long-Term Medication May Need Their Own Schedule
If your pet takes medication every day, their bloodwork schedule may look different from that of a healthy pet.
Some medications can affect the liver, kidneys, blood cells, or other parts of the body. Other treatments need monitoring so we know the dose is doing what we want it to do.
We may recommend testing after starting a medication, after changing the dose, and then periodically once everything is stable.
Those rechecks help us make treatment decisions based on what is actually happening inside your pet’s body.
What About Before Surgery or a Dental Procedure?
Bloodwork before anesthesia is another common recommendation.
Even when a pet looks healthy, laboratory testing can reveal information that may affect how we approach anesthesia. If we find something unexpected, we can decide whether additional testing or a change in the plan is needed.
It does not make anesthesia risk-free, but it gives the medical team more information before the procedure begins.
The Bottom Line: Your Pet Does Not Need a Cookie-Cutter Schedule
There is no magic age or calendar rule that works for every dog and cat.
At Tempe Lake Veterinary Clinic & Pet Resort, we consider your pet’s age, lifestyle, health history, medications, symptoms, and previous results when deciding how often bloodwork makes sense.
Not sure when your pet last had it? Ask us at their next appointment. We can look at their history together and decide what makes sense for the stage of life they are in now.