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Dr. Roy Madigan, D.V.M., is not just a veterinarian. He is one of the leading experts in canine Chagas disease in the United States.
 
• Founder of Vida Pharmacal, focused on breakthrough parasitic disease treatments
 • Filed the first veterinary drug patent for anti-T. cruzi activity in dogs
 • Principal scientist for the U.S. military working dog Chagas treatment study
 • Veterinary lead for the Texas Chagas Task Force alongside the CDC and UT Health
 • Pioneer in developing diagnostic and treatment protocols for infected dogs
 
Your pet is being treated by the same expert helping shape how Chagas disease is understood nationwide.

Get In Touch

Chagas disease progresses in stages. The earlier it is identified:
 
 • The more treatment options are available
 • The better heart damage can be managed
 • The higher the chance of improving quality of life
 
Waiting can mean irreversible cardiac damage.

Early Detection. Advanced Treatment. Led by One of the Nation’s Top Experts.

Do not wait for symptoms to appear.

Chagas disease is often silent early on, but warning signs may include:
 
 • Lethargy or decreased activity
 • Fainting or collapse
 • Irregular heartbeat
 • Difficulty breathing
 • Unexplained weight loss
 
If your dog spends time outdoors, lives in Central Texas, or has been exposed to insects, they may be at risk even without symptoms.

If your dog may have been exposed to kissing bugs, do not wait. Chagas disease can silently damage the heart before symptoms appear. Early diagnosis can make the difference.

At Central Texas Vet, we go beyond standard testing.
Dr. Madigan is actively developing advanced serologic testing methods to improve detection accuracy.
 
Your dog’s evaluation may include:
 
 • Comprehensive physical exam
 • Cardiac screening
 • Specialized blood testing for T. cruzi
 • Advanced diagnostics when needed
 
Early detection allows for better management and improved outcomes.

Chagas disease is caused by the parasite Trypanosoma cruzi, transmitted by “kissing bugs” commonly found in Texas.
Once infected, dogs may appear normal while the parasite attacks the heart and other organs.
 
Without intervention, Chagas can lead to:
 
 • Heart disease
 • Arrhythmias
 • Sudden death

Questions? We Have Answers

If your dog may be at risk, schedule an evaluation today and get answers from one of the leading experts in the field.

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At The Animal Hospital of Smithson Valley, we go beyond standard testing.Dr. Madigan is actively developing advanced serologic testing methods to improve detection accuracy.Your dog’s evaluation may include:<ul><li>Comprehensive physical exam</li><li>Cardiac screening</li><li>Specialized blood testing for T. cruzi</li><li>Advanced diagnostics when needed</li></ul>Early detection allows for better management and improved outcomes.

Dr. Roy Madigan, D.V.M., is not just a veterinarian. He is one of the leading experts in canine Chagas disease in the United States.<ul><li>Founder of Vida Pharmacal, focused on breakthrough parasitic disease treatments</li><li>Filed the first veterinary drug patent for anti-T. cruzi activity in dogs</li><li>Principal scientist for the U.S. military working dog Chagas treatment study</li><li>Veterinary lead for the Texas Chagas Task Force alongside the CDC and UT Health</li><li>Pioneer in developing diagnostic and treatment protocols for infected dogs</li></ul>Your pet is being treated by the same expert helping shape how Chagas disease is understood nationwide.

Chagas disease is caused by the parasite Trypanosoma cruzi, transmitted by “kissing bugs” commonly found in Texas.Once infected, dogs may appear normal while the parasite attacks the heart and other organs.Without intervention, Chagas can lead to:<ul><li>Sudden death</li><li>Heart disease</li><li>Arrhythmias</li></ul>

Chagas disease progresses in stages. The earlier it is identified:<ul><li>The more treatment options are available</li><li>The better heart damage can be managed</li><li>The higher the chance of improving quality of life</li></ul>Waiting can mean irreversible cardiac damage.

Chagas disease is often silent early on, but warning signs may include:<ul><li>Lethargy or decreased activity</li><li>Fainting or collapse</li><li>Irregular heartbeat</li><li>Difficulty breathing</li><li>Unexplained weight loss</li></ul>If your dog spends time outdoors, lives in Central Texas, or has been exposed to insects, they may be at risk even without symptoms.

chagas-disease-ahsv

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At Central Texas Vet, we go beyond standard testing.Dr. Madigan is actively developing advanced serologic testing methods to improve detection accuracy.Your dog’s evaluation may include:<ul><li>Comprehensive physical exam</li><li>Cardiac screening</li><li>Specialized blood testing for T. cruzi</li><li>Advanced diagnostics when needed</li></ul>Early detection allows for better management and improved outcomes.

Chagas disease is caused by the parasite Trypanosoma cruzi, transmitted by “kissing bugs” commonly found in Texas.Once infected, dogs may appear normal while the parasite attacks the heart and other organs.Without intervention, Chagas can lead to:<ul><li>Heart disease</li><li>Arrhythmias</li><li>Sudden death</li></ul>

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From the playful puppy years to the golden senior moments, dogs, like us, go through various life stages, each with its unique health needs and challenges. As a veterinarian, I tell my clients that we have to look at lab work as a window into the intricate workings of their dog's health, offering insights that can guide preventative care, early detection of diseases, and tailored treatment strategies.Whether it is a routine check-up or investigating a puzzling symptom, lab work provides the clarity and direction needed for making informed decisions about your dog's health care. In this blog, we will explore how routine blood panels, chemistry tests, and other diagnostic tools play an important role in your dog’s overall well-being.<h2 dir="auto" style="line-height: 1.2">The Process of Drawing Blood from Dogs</h2>First things first, how the heck do we draw blood from your dog?! Although it is every veterinarian’s dream, we know our canines will simply not sit there, make a fist, and breathe slowly.But fear not. The entire process is quick, usually taking just a few minutes. Veterinarians and our staff are skilled at performing blood draws with minimal stress and discomfort to your pet. In the hands of an experienced veterinary team, most dogs handle blood draws well, with little to no fuss!The most common sites for drawing blood in dogs are the jugular vein in the neck, the cephalic vein in the front leg, and the saphenous vein in the hind leg. The choice of site depends on the amount of blood needed and the dog's size and temperament. The jugular vein allows for larger volumes of blood to be drawn quickly, which is beneficial for comprehensive testing, while the cephalic and saphenous veins are often used for smaller samples.When they are all done, if the sample was taken from a leg, there may be a small bandage (sometimes even in fun colors and designs) on the area to apply pressure a little longer and prevent bleeding and bruising. Typically, these can be taken off once you are at home and your pet is settled. Make sure not to leave this wrap on too long, or it may cause swelling!<h2 dir="auto" style="line-height: 1.2">Labwork by Life Stage: Tailored Testing for Optimal Care</h2><h3 dir="auto" style="line-height: 1.1">Puppies and Adolescents</h3>Navigating the journey of puppyhood into the adolescent stage is an exciting season for both you and your pup. This phase lays the groundwork for a healthy and joyful life ahead. Young dogs require a baseline to understand their normal health parameters. Initial screenings check for congenital diseases, infections, and proper organ development.As puppies transition into their adolescent phase, around 6 to 12 months, their bodies undergo significant changes. This period is an optimal time for a follow-up set of lab tests, including a complete blood count (CBC) and a biochemistry panel. These tests monitor organ function, ensuring that your growing dog is metabolizing nutrients correctly and that there are no underlying health issues as they approach adulthood.<h3 dir="auto" style="line-height: 1.1">Adult Dogs</h3>As our puppies blossom into full-fledged adults, their care evolves, reflecting their changing needs. Typically ranging from 1 to 7 years, we ideally like to see adult dogs once a year for an annual veterinary exam. These check-ups should include a comprehensive physical examination and discussions about diet, exercise, and any behavioral changes. It’s during these visits that lab work becomes a valuable tool in our preventative care toolboxes.Lab work for adult dogs isn’t just about screening for diseases; it is a preventive measure that supports their quality of life. By identifying subtle changes in their health markers over time, we can make adjustments to their care before minor issues become major concerns.Annual exams for adult dogs often include a Complete Blood Count (CBC) and chemistry panel, We will talk more about these in the next section to monitor their overall health and organ function. These tests can reveal hidden diseases not evident from a physical examination alone.<h3 dir="auto" style="line-height: 1.1">Senior Dogs</h3>Transitioning into their senior years, dogs require even more attention and care from their owners and veterinarians alike. Typically considered seniors around the age of 7 (earlier for larger breeds, which age faster), these seasoned companions face an increased risk for various health issues. It is during this stage of life that laboratory work becomes indispensable, helping to support our pups through their golden years.Senior dogs significantly benefit from two veterinary visits a year. This bi-annual check-up schedule provides closer monitoring of their health and quicker adjustments to their care plan as needed. Lab work becomes a focal point of these visits, providing critical insights into their changing health needs.<h3 dir="auto" style="line-height: 1.1">Breed-Specific Considerations: Beyond One-Size-Fits-All</h3>Certain breeds are predisposed to specific health conditions, necessitating tailored lab work. For example, large breeds may require early screening for hip dysplasia, while breeds like Dobermans might need regular heart monitoring. Understanding genetic predispositions allows for proactive health management.No two dogs are identical or even age in the same way. Your veterinarian will tailor your dog's lab work based on their breed, age, medical history, and any symptoms or concerns that you may have noticed, so be sure to keep an open dialogue with your veterinary team. They want your pet healthy as much as you do!<h2 dir="auto" style="line-height: 1.2">Decoding Blood Panels and Chemistries:</h2><h3 dir="auto" style="line-height: 1.1">Conducting these tests annually can help detect diseases early when they are most treatable.</h3><ul><li>Complete Blood Count (CBC): This test gives us a snapshot of your dog's immune system, indicating infections, anemia, dehydration, and even certain cancers.</li><li>Chemistry Panel: A chemistry panel provides insights into the health of major organs like the liver, kidneys, and pancreas. It can detect early stages of diseases, allowing for timely intervention.</li></ul>This comprehensive panel becomes even more important as dogs age, offering early detection for conditions that are common in older pets.<h3 dir="auto" style="line-height: 1.1">Specific Tests for Comprehensive Care:</h3><ul><li>Heartworm and Tick-Borne Disease Tests: An essential annual test for all dogs, monitoring for heartworms and tick-borne diseases is imperative.</li><li>Thyroid Function Tests: Thyroid diseases are common in adult dogs, affecting their metabolism, energy levels, and even behavior. A simple blood test can assess thyroid hormone levels, making sure they are within a healthy range.</li><li>Urinalysis and Kidney Function Tests: Senior dogs are at an increased risk for kidney disease and urinary tract issues. Regular urinalysis, coupled with blood work, offers a window into the health of the urinary system, allowing for early intervention.</li><li>Glucose Testing for Diabetic Dogs: Regular glucose monitoring is essential for managing diabetic dogs, helping adjust insulin doses and dietary needs.</li><li>Diseases Such as Cushing's disease, Addison's disease, and Liver Issues: Advanced testing can diagnose these conditions, guiding treatment plans to manage symptoms and improve life quality.</li></ul><h2 dir="auto" style="line-height: 1.2">Love Through Labwork</h2>An integral part of your dog’s care is the relationship you build with your veterinarian. Open, honest communication about any changes in your dog’s behavior or health can guide the need for laboratory work. Your vet can recommend additional screenings based on your dog’s lifestyle, breed predispositions, and any symptoms they exhibit.Remember that the goal of these tests is not just to treat but to prevent and catch issues early. We want your canine companion to enjoy a long, happy, and healthy life by your side. If you have any questions about your dog's health or the recommended lab work for their life stage, do not hesitate to reach out to your veterinarian.If you have questions and you'd like to reach out to us, you can call us directly. Don't forget to follow us on social media.

Whether it is a routine check-up or investigating a puzzling symptom, lab work provides the clarity and direction needed for making informed decisions about your dog's health care. In this blog, we will explore how routine blood panels, chemistry tests, and other diagnostic tools play an important role in your dog's overall well-being.

Maximizing Canine Health: The Importance of Laboratory Work Through Your Dog's Life

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Unlike traditional kennels, our team includes trained veterinary professionals who monitor your pet throughout their stay. You can relax knowing they're in capable hands. Your veterinarian will assess whether your pet needs any additional care prior to and during their stay.

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Ensure your pet travels safely with veterinary health certificates and travel documentation support. Our veterinarians provide exams, guidance, and required paperwork to help prepare your pet for travel based on your destination and specific requirements.

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Saying goodbye is the hardest part of loving a pet. When that time comes, you deserve clarity, comfort, and the space to make decisions with peace of mind.

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When your pet needs medication, trust and convenience matter. At (), we prescribe and dispense medications directly from the team whos seen your pet, knows their health history, and understands their specific needs.
No guessing, no delays, and no unnecessary confusion.


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Skin issues are one of the most common reasons pets end up at the vet, and they're also some of the most frustrating. Allergies, infections, or even food sensitivities can all cause your pet discomfort.

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When pets act out, there's almost always a reason. Anxiety, fear, medical conditions, or past trauma can show up as barking, biting, hiding, or destruction. Our job is to uncover the cause and help your pet feel safe again.

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Nutrition is the foundation of good health, and a powerful tool in managing weight, energy, chronic conditions, and even behavior.

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A sudden limp. A skipped meal. A look that says something's off. When your pet isn't feeling right, same-day answers make all the difference. 

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Spaying or neutering your pet is one of the most important decisions you can make for their long-term health. It helps prevent certain cancers and infections, curbs unwanted behaviors, and reduces the number of orphaned pets in shelters.

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Discover hidden dental issues before they cause pain with pet dental radiology at (). Our veterinary dental X-rays reveal infections, bone loss, and tooth damage beneath the gum line, ensuring safer, more effective treatment. Non-invasive and included in every comprehensive dental cleaning, dental radiographs for pets help protect your pet's health, comfort, and smile for years to come.


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Permanent ID for Peace of Mind. A collar can come off. A tag can get lost. But a microchip is a permanent, tamper-proof way to make sure your pet always has a way home. At (), we offer safe and simple microchip implantation, so your pet stays connected to you, no matter what.

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Your pet can't tell you when something's wrong. That's why regular wellness exams are so important. These visits give us the chance to catch health issues early, before they become painful or costly.  

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Bad breath isn't just annoying - it's often a sign of deeper health issues. Dental disease in pets can lead to oral pain, local or systemic infection, tooth loss, and even heart, liver, or kidney complications. 

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Fleas, ticks, and intestinal worms are not just a nuisance, they are dangerous. These tiny pests can cause serious health issues like Lyme disease, heartworm disease, and tapeworms. 

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Vaccines are one of the most important tools we have to protect pets from serious, often deadly diseases. Whether you have a rambunctious or a relaxed pet, vaccinations help your pet build strong immunity and avoid preventable illness.

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Comprehensive surgical services, from routine procedures to complex operations, all are performed with expert care.

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When your pet isn't acting like themselves, diagnostic testing helps us find the reason. From bloodwork, urine testing, and fecal exams to x-rays, these tests give us a window into what's happening inside, so we can take action before things get worse.

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When pets get sick or injured, you want answers fast. Advanced imaging gives us a deeper look, without invasive procedures.


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Maximizing Canine Health: The Importance of Laboratory Work Through Your Dog's Life

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Maximizing Canine Health: The Importance of Laboratory Work Through Your Dog's Life

Recent Blogs

Online Veterinary Pharmacy: Home Delivery & Savings

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Pet Obesity Awareness Month: Healthy Weight Tips

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How often should I bring my pet to the vet for a check-up?

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