Let’s start with the Adrogué–Madias (A-M) formula (1997): Na+ deficit = TBW fraction x weight x ΔNa+
Sodium Deficit Calculator
Sodium deficit = ksex × Wt × Δ[Na+] =
150 mmol
Glucose-adjusted Sodium Calculator
Corrected [Na+]corr mmol/L
How many mmol/L in that sodium solution?
0.29% Na+ = 50 mmol/L Na+
How to make 3% Saline
This is an ADDITIVE calculator. That means that you start with a volume of 0.9% saline, and you add 23.4% saline to it, giving you the final 3% solution. That's it. There is no removing fluid at any point. simply add one to the other.
Start with 100 mL of 0.9% saline
ADD 10 mL of 23.4% saline
Result: 110 mL of 2.9% saline