During a recent visit to the doctor my blood pressure was suddenly very high, so high that I had to go to the emergency and be monitored for several hours. I was put on metaprolol, but my blood pressure still spikes throughout the day. What would make my blood pressure go up like that? At what point is it so high that I shoudl go to the ER again?
The Joint National Committee defines four blood pressure categories.
Very High Range - Stage 2 HypertensionSystolic (top) blood pressure 160 mm Hg or highDiastolic (bottom) blood pressure 100 mm Hg or higher If in this range you have hypertension (high blood pressure).High Range - Stage 1 HypertensionSystolic (top) blood pressure 140 - 159 mm HgDiastolic (bottom) blood pressure 90 - 99 mm HgIf in this range you have hypertension (high blood pressure).Caution Range - PrehypertensionSystolic (top) blood pressure 120 - 139 mm HgDiastolic (bottom) blood pressure 80 - 89 mm Hg Take action!Normal Range - NormalSystolic (top) blood pressure below 120 mm HgDiastolic (bottom) blood pressure below 80 mm Hg Perfect!
Eating a diet that includes potassium rich foods will help promote a lower blood pressure. I also recommend you learn about the DASH diet. It's a very effective way to lower and manage high blood pressure.
From the information you shared I think "white coat hypertension" may be playing a role. That doesn't mean you don't need the medication, but it's something to be aware of.
Here are some other links you might find helpful.
7 Natural Ways to Lower Blood Pressure
Have High Blood Pressure? Don’t Eat These Foods
7 Lifestyle Strategies to Decrease Your Risk of a Blood Clot