I had one about 25 years ago with no after of side affects. It took about 4 to 6 hours. Good Luck !

I had a one about a year ago. It was easy and nothing scary. I haven't had any adverse effects from any of it. It gives the doctors a lot of good information. I was absolutely fine afterwards. It might have taken around two hours. You have to wait a half hour between tests. Don't worry.

Keep positive thoughts. Take a look at what you are thinking. Try to reduce the racing/junk thoughts from that voice inside your head. Sit back and only be the observer of thought and not your thoughts. Your brain always beliefs what you are telling it. Tell the brain everything will go fine and it will. I have had the test 3 times since 2019. You do great and everything will work out. You have got this. Do not worry. I know easier said than done. I can tell from your post you have got positive thought. I hope this helps. Listen to your favorite music. Check to see if you can during the test. Stay distracted with good things. Take someone you trust with you. The tech's doing the test are always good people and care. Call if you need any questions answered. That may help. I think your results are given fairly fast. You will be fine. I care.

I had mine last year. All I can say is when you are starting to feel faint ask them to stop. They put in a reversing agent. They couldn’t believe how far they could get my stress test to go and personally I would have said I had enough earlier than I did

The test, unless there's another I don't know about, is called the 'MIBI', and you will require a CT scan, then a treadmill with IV where they push the radio-opaque dye in at about the time they figure you're nearing your maximum exertion. From there, one more full minute, and then they stop the treadmill slowly so you don't fall. Yes, it's stressful, but try gasping for two minutes through a mask! That's what happened to my on my SECOND MIBI. It was 17 months ago during COVID. Most unpleasant, I assure you. But, I survived.

You wait about 45 minutes to an hour and then a second CT scan. I seem to recall having to eat and drink after the treadmill.

Yup, it's a whopper for radiation. About 500 chest X-ray equivalent. And I have had two in five years. Personally, I would rather they had just done the MRI and angiogram that they prescribed next in my path to an electrophysiologist's office. The MIBI ended with me in mild and short-lived supraventricular tachycardia, at which the attending physician suggested I try to limit my maximum heart rate during exercise to 120 BPM.

It's best not to fear these things. It's always a crapshoot, but consider the lethality of radiation therapy that my poor wife is likely to endure with her new diagnosis of breast cancer. Or anyone who needs that kind of targeted and harsh disruption of tissue inside their body. This is just imaging radiation, not 'ionizing' radiation, at least no nearly so damaging. If the MIBI was life-altering, we'd have found something much better at this point in medicine. So far, not much that I know of.