About 95% of raised potassium results are due to technical problems with the taking of the test, if the blood is taken too fast or too slow or you clench your hand for too long this gives wildy inaccurate results ( used to work at Dr;'s). This is fairly obvious as the result will be wildy off the scale and they just redo the test.
If your result is elevated but within reason then again they redo the test to see if its still the same and then if it is they will do other blood tests to rule out conditions that can cause it.
So there is a good chance that your next test will be normal. I know someone who was eating about 5 bananas a day on a diet and she had high potassium. Look at your diet and see if you are eating a large amount of fruit/veg that are full of potassium.
I generally have low potassium levels but since I started eating beetroot every day mine has for the first time got to smack in the middle of normal range so proves diet has huge effect.
Google high potassium foods and check - much less stressful than what Dr Google says could be wrong
