DETERMINATION of the serum sodium has assumed a position along with blood sugar and blood urea nitrogen as a routine diagnostic procedure for severely ill patients. If the serum concentration of ...

Compared to simple laboratory tests, instrumental methods of analysis may give improved: A solution containing sodium ions gives a reading of four units on the flame photometer. Use the ...

Plasma sodium and potassium values were determined with a Baird atomic flame photometer using a lithium internal standard, and plasma chloride by the method of Schales and Schales as modified by ...