Sure, it’s the cliche of cliches. Somebody goes into shock in every medical drama and half of all sitcoms. How realistic are they?
Not very. I went into shock today during a nuclear stress test. It wasn’t fatal and it wasn’t comic.
Nuclear stress tests are easy stuff. You can do most all of it lying down, plus you have to eat a high-fat sandwich during the process. That’s practically a spa. (Name ten other procedures during which they ask if you want to go to McDonald’s. Name two.)
Until I got to the part where they injected me with Lexiscan.
Regadenoson, sold under the brand name Lexiscan among others, is an A2A adenosine receptor agonist that is a coronary vasodilator that is commonly used in pharmacologic stress testing. It produces hyperemia quickly and maintains it for a duration that is useful for radionuclide myocardial perfusion imaging.
The nurse told me that most people feel no symptoms and some feel mild shortness of breath. I was in group three. As soon as the Lexiscan entered the iv, shortness of breath entered the room in a hurry. Then I felt cold and clammy. My fingers tingled. I broke out in heavy sweat. Every single cubic inch of my body started complaining, asking in loud tones, hey, how about death, is that option on the table? Hmm, tempting, I replied. Ask me again if I still feel like this in 30 seconds.
Fortunately, the antidote to Lexiscan shock is a simple injection of caffeine. I’m not much of a coffee drinker. I was disbelieving of the equally all-pervasive tv cliche of people needing their morning jolt of caffeine and being zombies until they partook. I was wrong. Intravenous caffeine is, how can I put this, nice. No, no golden glow like heroin, no sudden rush like cocaine, no touched by a live wire like speed. (Not that I would know personally.) But all my symptoms drifted off to another ward almost immediately. I haven’t felt this pleasantly awake and eager and able to take part in life since well before my heart became as congested as the 405. Instead of crawling home I went shopping.
What a weird day. The nuclear part of a stress test means an injection of Technetium-99m, m for medical grade. Radioactive with a half-life of 6 hours. If I bite you, you will have the proportional strength of someone too weak to take a normal stress test. Your loss.
Has anybody else been through this? How was it handled? Hope it was as fast and good as my experience today.