Is dye used in a treadmill stress test?
Is dye used in a treadmill stress test?
The test measures blood flow while you are at rest and are exerting yourself, showing any areas with damage or low blood flow. First, a radioactive dye is injected, then two sets of images are taken of your heart; one set during rest and the other during exertion.
How long does a stress test take with dye?
The test takes about 3 to 4 hours. Although the patient is exposed to a small amount of radiation, the test is considered safe.
Can I drive after a chemical stress test?
You will not be allowed to eat or drink until the medicine used to numb your throat wears off. This usually takes 30 to 60 minutes. You may not drive yourself home after your test.
How long does the average person last on the treadmill during a stress test?
The person will exercise for 10–15 minutes but can ask to stop at any time if they feel unwell. If the person experiences any of the following, the doctor might stop the test : dizziness. high blood pressure.
How long does radioactive dye stay in your system?
The radioactive liquid will be in your body for 24 to 36 hours after your test. You will need to do the following: Drink plenty of liquids as directed. This will help flush the radioactive liquid out of your body.
What is a good score on a treadmill stress test?
Low risk (score > 5) indicates a 5-year survival of 97%. Intermediate risk (score between 4 and -11) indicates 5-year survival of 90%. High risk (score < -11) indicates 5-year survival of 65%.
What are side effects of contrast dye?
Iodine-based Contrast Materials
- nausea and vomiting.
- headache.
- itching.
- flushing.
- mild skin rash or hives.
Is radioactive dye harmful?
Radioactive dye is injected into the body to capture images of internal structures and to look for abnormalities. The radioactive nature of the dye is the main reason why some patients feel uneasy about undergoing the procedure. However, the test is primarily safe, and there are rarely any associated complications.
