So, it didn't work. Immediately his saturation levels dropped off, and within 3 hours of taking him off the medication, he was more than 30 points lower than he had started out at. Plus, he had taken on a nice purple hue to his skin color. Not good.
They put the medicine back on. Within minutes he was back up to his normal saturation level. So, he needs the prostoglandin right now. The doctors will pow wow about him again, and they will decide on what to do next. Most likely, he'll need to go back to the Cath Lab and have a stent placed in that opening, so it will stay open, instead of needing the medicine to do that.
For now, he is pink again. That is good.