Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum
Ion-Selective Electrode (ISE)
24hrs; Also offered STAT at an additional charge
Centrifuge required?: Yes
To determine whether your sodium concentration is within normal limits and to help evaluate electrolyte balance and kidney function; to monitor chronic or acute hypernatremia or hyponatremia.