I've read on some blogs that potassium helps lower blood pressure for people that have a high sodium intake. I've also read that these two nutrients interact with each other, so if you have more potassium, you have less sodium in the blood and vice versa. A few places tout that it 'balances out' your electrolytes.
If this is true, can a person with very high potassium levels (hyperkalemia) experience the symptoms of having low sodium levels (hyponatremia?) Or is it more complex than that?