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Electrolyte calculators and drug tables

Electrolytes and related calculators / tables

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Potassium supplements


Calculators / Tools

Anion Gap
Body Fluid Volumes
Calcium (hypocalcemia) treatment Calculator
Calcium and Vitamin D Calculator
Corrected Calcium calculator
Free Water Deficit
Fractional Excretion of Potassium
Fractional Excretion of Sodium

Hypertonic and Normal Saline Calc (original)
Hypertonic Saline 3% and 0.9NS Infusion Calc (Custom calculator)

Magnesium Dosing
Osmolality (serum ) Calculator
Osmolarity compounding Calculator-powerful tool
Phosphate Dosing
Serum Na+ Level Prediction - based on 0.9NS
Sodium BICARBONATE deficit calculator
Sodium level correction for hyperglycemia

Urinary Indices - Renal failure index / FE-Na


Drug Tables

Calcium Supplements
Magnesium supplements
Phosphate supplements
Potassium supplements
Vasopressin-V2- receptor-antagonists
Vitamin D Analogs

Drug Dilutions

CaCl / Calcium gluc
Magnesium sulfate
Potassium & Na+ PO4
Potassium chloride
Sodium Bicarb
Sodium Chloride 3%

New custom sodium calculator released... This new tool was created based on important feedback from Dr. Shaw. Minor changes to the original calc were completed as well.

Robert F. Shaw, PharmD, MPH, BCPS, BCNSP
ICU Clinical Pharmacy Specialist

".....The hypertonic saline calculator still did not meet what I was looking for, but I understand one calculator cannot fit every need and the inherent risks and liability with administration of 3% saline.

If I had the "perfect" calculator... I would want fields for:
starting Na
desired ending Na
choice of saline concentration 0.9% or 3%

This would provide how many ml of either 3% or 0.9% saline required to change the sodium to the desired value. This could further be defined if a meq/hr choice was provided of 0.5 meq/hr or 1 to give a infusion rate....

Articles & News

Electrolyte calculators and drug tables


National Institutes of Health, U.S. National Library of Medicine, DailyMed Database.
Provides access to the latest drug monographs submitted to the Food and Drug Administration (FDA). Please review the latest applicable package insert for additional information and possible updates.  A local search option of this data can be found here.