I would call his office and tell the nurse what your blood pressure is.
More than likely he will call you in a prescription of blood pressure medicine to start taking.
If he is not in he should have another doctor on call that can do the same thing for you.
Because they have your chart and your ekg it would be best to let him handle it.
However if you can get a hold of anyone you do need to get your blood pressure down so you do need to be seen as soon as possible.
He should be able to call something in for you though.