Crystal Run’s Nuclear Cardiology labs are were among the first in North America to be recognized by the Intersocietal Commission for the Accreditation of Nuclear Medicine Laboratories (ICANL) for our commitment to high quality care and quality diagnostic testing.
Nuclear cardiology studies use noninvasive techniques to assess myocardial blood flow, evaluate the pumping function of the heart, as well as visualize the size and location of a heart attack.
If you’re physician has ordered you a Nuclear Stress Test, you may be wondering how to prepare for it and what to expect. Below, we have listed some of our most frequently asked questions. If you require further information, please contact our office at 845.703.6999.
Frequently Asked Questions about Nuclear Stress Tests
1. How should I prepare for the procedure?
You should avoid caffeine/ decaf (coffee, tea, etc) and smoking for 12 hours before the examination. You should not eat or drink anything 4 hours prior to the procedure. Wear comfortable, rubber-sole walking shoes and loose-fitting clothes for your procedure.
2. What does the equipment look like?
The imaging equipment, called a gamma camera, consists of specialized detectors enclosed within a metal housing ring. This IS NOT an MRI scan. The gamma camera will move slowly and automatically in an arc over the front of your chest after it is positioned initially by the technologist. Please inform the nurse or technologist if you are claustrophobic (cannot withstand enclosed spaces) or cannot lie flat on your back for a period of time.
3. How is the procedure performed?
For the stress part of the examination, you will exercise by either walking on the treadmill or having a medication test.
*While you exercise, the electrical activity of your heart will be monitored by an EKG, and your blood pressure will be measured frequently. Before you stop exercising, you will be given the radioactive tracer through an IV line in the arm. The compound is given when the blood flow to the heart is at its peak rate caused by you exercising. This provides the best opportunity to identify regions of the heart that are not receiving adequate blood flow.
*One minute later, you will stop exercising. Approximately 15-30 minutes later, you will lie on the gamma camera table.
*If you are unable to use a treadmill, you will not exercise but be given medication that will cause your heart vessels to dilate. You will then be given the radioactive tracer. Approximately 90 minutes after that, you will lie on the gamma camera table for images.
4. What will I experience during and after the procedure?
You may experience a cool sensation from the intravenous injection of the radiopharmaceutical because the saline fluid is at a lower temperature than your body. Some discomfort may also be experienced while on the camera, since one/both arms will be above your head.
*You will be asked to exercise until you are either too tired to continue, short of breath, or if you experience chest pain, leg pain, or other discomfort that causes you to want to stop.
*If you are given medication test, you may experience a brief period of anxiousness, dizziness, nausea, or shortness of breath. If the side effects of the medication persist or become uncomfortable, another medication can be given to stop the effects.
* You may resume regular activities after the procedure (eating, driving, etc). The radioactivity in your body will decrease over a short period of time by passing out of your body through your urine and stool or natural decay.
5. Are there any side-effects to the radioactive tracer?
Some patients experience a slight taste in their mouth or a smell. The solution is a saline based material; therefore, you will not feel any different. Please note: You are radioactive for 12 hours.
6. Does this material change the color of your urine?
No, if you experience color-change with your urine, please see a physician. This will not be related to the test.
7. Should I take my medications?
For the resting portion of the test, you may take all prescribed medications. For the stress portion of the test, please see instructions or speak with your physician.
8. What does the test show?
This test will show if you have any blocked arteries or ever had a heart attack. Please be aware that both parts of the test are needed for an adequate reading of the test, unless otherwise specified by the reading/ your cardiologist.
To Schedule an Appointment, click here.