Advanced Heart Testing That Helps Detect Heart Disease Before It Becomes an Emergency

Heart disease doesn’t always announce itself with obvious symptoms. In many cases, reduced blood flow to the heart develops gradually over time, often without warning signs until a heart attack or other serious cardiovascular event occurs. That’s why advanced diagnostic testing plays such an important role in protecting your heart.

At Cardiology First, Dr. Van Adamson offers Cardiac Nuclear Stress Testing, one of today’s most advanced non-invasive diagnostic tools for evaluating blood flow to the heart muscle. This specialized imaging test allows your cardiologist to determine how well your heart performs during both rest and stress, helping identify blocked arteries, reduced circulation, previous heart damage, and other cardiovascular conditions before they become life-threatening.

Patients throughout New Braunfels, Schertz, Cibolo, Seguin, San Marcos, Garden Ridge, Selma, Universal City, and surrounding communities trust Cardiology First for compassionate, personalized cardiovascular care backed by state-of-the-art diagnostic technology.

If you’re experiencing chest pain, shortness of breath, unexplained fatigue, or have multiple cardiovascular risk factors, a Nuclear Stress Test may provide critical information about your heart health.

What Is a Cardiac Nuclear Stress Test?

A Cardiac Nuclear Stress Test is an advanced imaging procedure that evaluates blood flow to your heart muscle during periods of rest and physical stress.

Unlike a standard treadmill stress test, a nuclear stress test combines exercise (or medication that simulates exercise) with a small amount of safe radioactive tracer and specialized imaging technology.

The tracer travels through your bloodstream and highlights areas of the heart receiving healthy blood flow. Images taken before and after stress allow Dr. Adamson to compare circulation and determine whether portions of your heart are not receiving enough oxygen-rich blood.

This information is extremely valuable in diagnosing coronary artery disease and assessing overall heart function.

Why Would I Need a Nuclear Stress Test?

Your physician may recommend this examination if you have symptoms or risk factors suggesting coronary artery disease.

Common reasons include:

• Chest pain
• Chest pressure
• Shortness of breath
• Heart palpitations
• Fatigue during activity
• Abnormal Electrocardiogram (EKG)
• High blood pressure
• Diabetes
• High cholesterol
• Family history of heart disease
• Prior heart attack
• Evaluation before surgery
• Monitoring after cardiac treatment

Even patients without symptoms may benefit from stress testing if they have multiple cardiovascular risk factors.

What Can a Nuclear Stress Test Diagnose?

A Cardiac Nuclear Stress Test provides valuable information about how well your heart functions during increased activity.

It helps diagnose:

Coronary Artery Disease (CAD)

The most common reason for nuclear stress testing is identifying narrowed or blocked coronary arteries.

Reduced blood flow often appears on imaging before symptoms become severe.

Previous Heart Attack

Scar tissue from an earlier heart attack appears differently than healthy heart muscle.

The study helps determine:

• Location of previous damage
• Extent of heart muscle injury
• Remaining heart function

Reduced Blood Flow (Ischemia)

Some arteries provide adequate blood flow at rest but cannot meet the heart’s demands during exercise.

Nuclear imaging identifies these areas before permanent damage occurs.

Heart Function

Stress testing evaluates:

• Pumping strength
• Blood circulation
• Exercise tolerance
• Overall cardiovascular performance

Treatment Effectiveness

Patients with known heart disease often undergo repeat stress testing to determine whether medications or previous procedures continue to provide adequate blood flow.

How Does a Nuclear Stress Test Work?

The examination occurs in several stages.

Step 1: Resting Images

A small amount of radioactive tracer is injected into your bloodstream.

After allowing the tracer to circulate, specialized imaging equipment captures detailed pictures of your heart while you’re resting.

Step 2: Stress Phase

Depending on your health and physical ability, stress is created by either:

• Walking on a treadmill
• Riding a stationary bicycle
• Receiving medication that temporarily increases blood flow similar to exercise

Your heart rhythm, blood pressure, and symptoms are closely monitored throughout the procedure.

Step 3: Stress Images

After reaching the desired level of stress, another small amount of tracer is administered.

Additional images are taken, allowing Dr. Adamson to compare blood flow during stress versus rest.

Exercise vs. Medication Stress Testing

Many patients are able to exercise on a treadmill during the examination.

However, if arthritis, mobility limitations, lung disease, or other medical conditions prevent exercise, medications can safely mimic the effects of physical activity on the heart.

Both methods provide valuable diagnostic information.

Dr. Adamson will determine which option is most appropriate based on your medical history and overall health.

What Conditions Can Be Detected?

Cardiac Nuclear Stress Testing is commonly used to evaluate:

• Coronary artery disease
• Blocked arteries
• Heart attack damage
• Chest pain
• Shortness of breath
• Reduced blood flow
• Heart failure
• Cardiomyopathy
• Exercise intolerance

It may also help determine whether additional testing or treatment is necessary.

Preparing for Your Nuclear Stress Test

Proper preparation helps ensure accurate results.

You may be instructed to:

• Avoid eating for several hours before the examination.
• Limit caffeine for 24 hours.
• Wear comfortable clothing and walking shoes.
• Bring a list of medications.
• Follow medication instructions provided by your physician.

Our office will provide personalized preparation instructions before your appointment.

Is Nuclear Stress Testing Safe?

Yes.

Cardiac Nuclear Stress Testing has been safely performed for decades.

The radioactive tracer used contains a very small amount of radiation and is carefully regulated for diagnostic use.

Throughout the examination, your:

• Heart rate
• Blood pressure
• Heart rhythm
• Oxygen levels
• Symptoms

are continuously monitored by trained healthcare professionals.

Patient safety remains our highest priority.

Understanding Your Results

After your study, Dr. Van Adamson carefully analyzes every image.

Your results help determine:

• Whether blood flow is normal
• If coronary arteries are narrowed
• Whether previous heart damage is present
• Overall heart function
• Pumping efficiency
• Need for additional testing
• Appropriate treatment recommendations

Rather than simply reviewing images, Dr. Adamson explains your results in understandable terms and answers every question you may have.

Personalized Treatment After Your Stress Test

If your Nuclear Stress Test identifies cardiovascular disease, treatment is customized specifically for your needs.

Your treatment plan may include:

Medication Management

Prescription medications may help:

• Lower blood pressure
• Reduce cholesterol
• Improve circulation
• Prevent blood clots
• Relieve chest discomfort

Lifestyle Modifications

Healthy habits remain one of the most effective ways to reduce cardiovascular risk.

Recommendations often include:

• Regular exercise
• Weight loss
• Smoking cessation
• Diabetes management
• Blood pressure control
• Heart-healthy nutrition
• Stress reduction

Additional Diagnostic Testing

Depending on your results, Dr. Adamson may recommend:

• Cardiac Echocardiography
• Cardiovascular CT
• Holter Monitoring
• Event Monitoring
• Cardiac Catheterization
• Implantable Loop Recorder evaluation

Every recommendation is individualized to provide the highest level of cardiovascular care.

Why Early Detection Matters

Heart disease often develops silently.

Advanced stress testing allows physicians to identify reduced blood flow before a heart attack occurs.

Early diagnosis may help:

• Prevent heart attacks
• Reduce stroke risk
• Avoid hospitalization
• Improve quality of life
• Preserve heart function
• Begin treatment sooner

Taking a proactive approach today can protect your heart for years to come.

Why Patients Choose Cardiology First

Patients throughout New Braunfels choose Cardiology First because of our commitment to exceptional cardiovascular care.

Dr. Van Adamson provides:

• Comprehensive cardiac evaluations
• Advanced Nuclear Stress Testing
• Personalized treatment plans
• Compassionate patient care
• Preventive cardiology
• Long-term follow-up
• State-of-the-art diagnostic technology
• Evidence-based cardiovascular medicine

Our philosophy is simple: every patient deserves personalized attention, clear communication, and a treatment plan designed around their unique health goals.

Frequently Asked Questions

Is a Nuclear Stress Test painful?

No. Most patients experience little discomfort beyond the IV placement. The test itself is non-invasive and well tolerated.

How long does the test take?

Most Cardiac Nuclear Stress Tests require approximately 2 to 4 hours, depending on the imaging protocol.

Can I drive afterward?

Most patients can resume normal activities immediately unless sedating medications are used or your physician provides different instructions.

Is the radioactive tracer safe?

Yes. The amount of radiation used is very small and has been proven safe for diagnostic cardiovascular imaging.

Will I know my results immediately?

Dr. Adamson carefully reviews all images before discussing your diagnosis, treatment recommendations, and next steps during your follow-up visit.

Schedule Your Cardiac Nuclear Stress Test in New Braunfels

If you’re experiencing chest pain, shortness of breath, unexplained fatigue, or have risk factors for coronary artery disease, a Cardiac Nuclear Stress Test may provide the information needed to protect your heart and prevent future complications.

At Cardiology First, Dr. Van Adamson combines advanced cardiovascular imaging with compassionate, patient-centered care to deliver accurate diagnoses and personalized treatment plans designed to help you live a healthier, more active life.

Contact Cardiology First Today

Dr. Van Adamson, MD
Cardiology First

📞 Phone: (210) 767-2549

🌐 Website: www.CardiologyFirstClinic.com

We proudly serve patients throughout New Braunfels, Schertz, Cibolo, Seguin, San Marcos, Garden Ridge, Selma, Universal City, and surrounding South Texas communities with advanced cardiovascular diagnostics and comprehensive heart care. Schedule your appointment today and take the next step toward understanding—and protecting—your heart health.