Description
Why It’s Done:
• To assess potassium balance in the body, which is crucial for heart and muscle function
• To evaluate kidney function, as the kidneys help regulate potassium levels
• To diagnose electrolyte imbalances that can occur due to conditions like dehydration, kidney disease, or adrenal disorders
• To monitor patients on medications that may affect potassium levels (e.g., diuretics or ACE inhibitors)
• To help diagnose heart arrhythmias or other symptoms related to abnormal potassium levels, such as muscle weakness or fatigue
Preparation:
• No special preparation is typically required for this test.
• A blood sample will be drawn, usually from a vein in your arm.
• Avoid vigorous exercise before the test, as it can temporarily elevate potassium levels.
• Inform your healthcare provider about any medications, supplements, or conditions that may affect your potassium levels.


