Is 6.7 a high potassium level?

A potassium level of 6.7 milliequivalents per liter (mEq/L) is considered high and is referred to as hyperkalemia. Normal potassium levels typically range from 3.5 to 5.0 mEq/L. Elevated potassium can lead to serious health issues, including heart problems, so it's important to seek medical attention if this level is detected.