This is really a great scenario, Tigger! It's quite complicated, and to be honest I'm not entirely sure what to do.
First of all, one strip shows bigeminy, but the other does not. Was he continually in bigeminy? This is important as it would determine how I would treat him. I would also make sure that I'm getting accurate BP's.
If he is continually in bigeminy and his PVC's are not creating a pulse, then this bradycardia needs to be addressed. Is the bradycardia due to ischemia from a developing MI? I don't see any ST elevation, but I won't rule that out. Or, is the bradycardia due to the extreme high blood pressure that his not-so-healthy heart has to pump against? Is the hypertension a response to the bradycardia, or is it a stress response? It's a couple of chicken-or-egg questions!
In a nutshell, I want to both bring up his heart rate and bring down his BP. This is what makes the patient complicated.
So, two things have to be corrected--the bradycardia and the hypertension. Certainly giving him some benzos would be a good place to start. My first thought is to start pacing him. If the hypertension is due to the bradycardia, and the chest pain and probably ischemia due to the hypertension, then by pacing him we could get him to a normal rate and thereby bring down his blood pressure. If it was a very short transport to a cath lab, then I would not do this, but considering the distance given in this scenario, I would not want to transport someone with underlying heart disease this far while he having massive chest pain and a massively high BP. Pacing this already very anxious guy is obviously not going to be easy, and again, I would be liberal with benzos and pain control.
Atropine is a consideration, and it would be easier on him that pacing, but once we give it we can't just turn it off again due to its long half life.
Aspirin and a spray of nitro would be okay. But, I don't think treating the BP with nitro would be appropriate, nor would giving anything else that only addressed his BP without also bringing up his heart rate.
This is definitely a time where I would consult with a doc at the receiving hospital. I look forward to seeing how you guys would treat this patient. Again, great scenario!