Potassium is the major intracellular cation and is critical to neural and muscle cell activity. Some causes of decreased potassium levels include reduced intake of dietary potassium or excessive loss of potassium from the body due to diarrhea, prolonged vomiting or increased renal excretion. Increased potassium levels may be caused by dehydration or shock, severe burns, diabetic ketoacidosis, and retention of potassium by the kidney.
Ion-selective electrode (ISE); enzymatic
Hemolysis and gross lipemia, urine with additives
Room Temperature: 14 days Refrigerated: 14 days
Serum, gel separator, SST, 24 hour Urine (no additives)
0 - 999
3.4 mmol/L - 4.5 mmol/L