Understanding Pre-Surgical Testing for Pets: What Every Pet Parent Should Know

Important Things to Know About Pre-Surgical Testing on Pets

At AM PM Spay Neuter and Vaccine Clinic, we understand that preparing your pet for surgery can be a nerve-wracking experience. Whether it's a routine spay or neuter or another minor surgical procedure, your pet’s safety is our highest priority. That’s why pre-surgical testing is such an important part of the process.

But what exactly is pre-surgical testing? Why is it necessary—even for young or seemingly healthy pets? And what can you expect before the procedure? Let’s break it down.

Why Is Pre-Surgical Testing Necessary?

Anesthesia and surgery always come with some level of risk, no matter how minor the procedure. Pre-surgical testing helps us identify any underlying health problems that may not be visible during a physical exam. This step allows veterinarians to assess your pet’s overall health, minimize complications during surgery, and ensure the safest experience possible.

Even pets that look healthy on the outside could be dealing with hidden conditions like liver or kidney dysfunction, anemia, or heart abnormalities. Identifying these risks beforehand helps your veterinary team adjust anesthetic plans or postpone surgery if needed.

What Pre-Surgical Tests Are Typically Performed?

Here are the most common tests recommended before pet surgery:

1. Physical Examination

This is the first and most basic step. A thorough physical exam checks your pet’s heart rate, breathing, weight, and general health condition. It can detect outward signs of illness that could increase surgical risk.

2. Blood Work (Pre-Anesthetic Blood Panel)

This test provides key information about how well your pet’s organs are functioning:

  • Complete Blood Count (CBC): Detects anemia, infection, and inflammation.
  • Blood Chemistry Panel: Checks liver and kidney function, blood sugar levels, and electrolytes.
    These values help your vet determine if it’s safe to proceed with anesthesia.

3. Heartworm Testing (Dogs)

If your dog isn’t already on heartworm prevention or has an unknown status, testing is essential. Heartworms can severely impact the heart and lungs, complicating any surgical procedure.

4. FeLV/FIV Testing (Cats)

For cats, screening for feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV) helps assess immune system function and overall health before surgery.

5. Urinalysis

In some cases, a urinalysis may be recommended to evaluate kidney function or detect urinary infections.

6. Additional Imaging (if needed)

If your pet has specific risk factors or symptoms, your veterinarian might recommend x-rays or an ultrasound to check for hidden abnormalities.

Do All Pets Need Pre-Surgical Testing?

While not always mandatory, pre-surgical testing is strongly recommended for:

  • Pets over 5 years old
  • Pets with chronic health conditions
  • Pets that have never had surgery before
  • Pets with abnormal physical exam findings

Even young, healthy animals benefit from a basic blood panel to catch potential issues early and establish a medical baseline.

How Can Pet Parents Prepare?

  • Fasting: You’ll likely be asked to withhold food from your pet for 8–12 hours before surgery (always follow clinic instructions).
  • Medication Info: Inform your vet about any medications or supplements your pet is taking.
  • Vaccination Status: Make sure your pet is up to date on core vaccines as required.
  • Ask Questions: Don’t hesitate to ask your vet about the testing process or test results. Understanding what’s being done helps ease anxiety and builds trust.

At AM PM Spay Neuter and Vaccine Clinic, our mission is to provide high-quality, low-cost veterinary care with a focus on safety and education. Pre-surgical testing is not just a medical step—it’s peace of mind. By identifying possible complications in advance, we ensure your pet’s procedure is as safe and smooth as possible.

Planning a spay, neuter, or other minor procedure for your pet? Schedule a pre-surgical consult with AM PM Spay Neuter and Vaccine Clinic today and give your pet the safest surgical experience possible. Visit us today at 12852 Pioneer Blvd,Norwalk,CA, 90650 or call (562) 282-9639 to learn more or book your appointment.