Potassium salts may be infused to reverse hypokalemia.
Molecular weight potassium: 39.098 g
|
Salt |
Molecular Weight |
Percent Potassium |
mmol K+ per gram |
mEq K+ per gram |
|
potassium acetate |
98.14 |
40% |
10.19 |
10.19 |
|
potassium chloride |
74.55 |
52% |
13.4 |
13.4 |
|
monobasic potassium phosphate |
136.1 |
28.7% |
7.35 |
7.35 |
|
dibasic potassium phosphate, anhydrous |
174.2 |
44.9% |
11.48 |
11.48 |
|
dibasic potassium phosphate trihydrate |
228.2 |
34.3% |
8.76 |
8.76 |
where:
• Monobasic potassium phosphate = KH2PO4
• Dibasic potassium phosphate = K2HPO4
• The combination of monobasic and dibasic phosphate salts forms a buffering system.
Common parenteral formulations for IV infusion contain 1-3 mEq per mL
