When do you consider potassium deficiency?
Normal potassium levels range between 3.5 to 5.0 milliequivalent’s Per Liter (mEq/L). If the test results are lower than 3.5 mEq/L, it is enough to diagnose a potassium deficiency. Before a potassium blood test, fasting is recommended, and potassium supplements or potassium-rich food should be avoided 6 hours before the test. Medication that affects potassium levels such as diuretics such be stopped in advance to accurately measure for potassium levels.