The Essential Element: Exploring the Properties and Functions of Potassium (K)
This test measures the amount of potassium in the fluid portion (serum) of the blood. Potassium (K+) helps nerves and muscles communicate. It also helps move nutrients into cells and waste products out of cells.
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How our test process works!
Purpose:
The potassium test measures the level of potassium in the blood. Potassium is an essential electrolyte that helps regulate fluid balance, nerve signals, and muscle contractions, including heart function.
Electrolyte Panel, Kidney Function, Heart Function
Normal Range
- Serum Potassium: 3.5–5.0 mmol/L (may vary slightly by lab).
- Critical Values: <2.5 mmol/L (severe hypokalemia) or >6.5 mmol/L (severe hyperkalemia).
Interpretation
- Hypokalemia (Low potassium): Potassium levels below 3.5 mmol/L. This may cause muscle weakness, fatigue, arrhythmias, and cramping.
- Hyperkalemia (High potassium): Potassium levels above 5.0 mmol/L. It may result in dangerous heart arrhythmias, muscle weakness, or paralysis.
Sample Type
- Specimen: Blood sample (serum or plasma).
- Collection: Typically from a vein in the arm using a standard blood draw.
Frequently Asked Question
Potassium (K)
The Essential Element: Exploring the Properties and Functions of Potassium (K)
This test measures the amount of potassium in the fluid portion (serum) of the blood. Potassium (K+) helps nerves and muscles communicate. It also helps move nutrients into cells and waste products out of cells.
Covid Safety
Assured
Free Report
Counselling