Potassium

... Why get tested?
To determine whether your potassium concentration is within normal limits and to help evaluate an electrolyte imbalance; to monitor chronic or acute hyperkalemia (high potassium) or hypokalemia (low potassium)

When to get tested?
As part of a routine medical exam, when you have symptoms such as weakness and/or cardiac arrhythmia, or when an electrolyte imbalance is suspected; at regular intervals when you are taking a medication and/or have a disease or condition, such as high blood pressure or kidney disease, that can affect your potassium level

Sample required?
A blood sample drawn from a vein in the arm
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19 argon ← potassium → calcium Na ↑ K ↓ Rb periodic table ...