CPT® Code 84132

The CPT® Code 84132 refers to the laboratory test for measuring potassium levels in serum, plasma, or whole blood. This test is crucial for assessing the concentration of potassium, a vital electrolyte that plays a significant role in various physiological functions. Potassium is essential for regulating body fluids, facilitating muscle contractions, and maintaining the acid-base balance within the body. It is predominantly stored within cells, making its measurement in blood samples particularly important, as it reflects the electrolyte's status in the body. Abnormal potassium levels can lead to serious health issues; hyperkalemia indicates excessively high potassium levels, while hypokalemia signifies dangerously low levels. Both conditions can have severe, potentially life-threatening effects on the cardiovascular and respiratory systems. The potassium level test is commonly utilized to screen for and monitor renal diseases, assess patients undergoing treatment with certain medications like diuretics, and evaluate individuals with acute or chronic conditions, including dehydration and endocrine disorders. Additionally, due to its impact on heart rhythm and respiratory function, potassium levels are routinely checked before major surgical procedures to ensure patient safety. The measurement of potassium is typically performed using ion-selective electrode (ISE) methodology, which provides accurate and reliable results.