Prioritized correction plan for simultaneous Na/K/Mg disorders. Priority: Mg → K → Na. Hypomagnesemia causes refractory K wasting; hyperkalemia is an emergency. Severe hyperkalemia, ODS risk, and interaction warnings included. Derived from Adrogué 2000, Gennari 1998, Agus 1999, Huang 2007, and Whang 1994. Not medical advice.
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Tool usage guide
Learn when to use this tool, what it supports, and how real users apply it.
Key facts
Category
Health
Input types
number, select
Output type
json
Sample coverage
4
API ready
Yes
Overview
Combined Electrolyte Correction Plan (Na/K/Mg) evaluates sodium, potassium, and magnesium results together and returns a prioritized correction plan in the order Mg → K → Na. Enter the patient’s electrolyte values, weight, sex, age group, and sodium correction limit to review estimated deficits, correction limits, interaction warnings, and emergency priorities. This tool is not medical advice.
When to use
When sodium, potassium, and magnesium abnormalities occur at the same time.
When hypokalemia may be difficult to correct because of concurrent hypomagnesemia.
When reviewing sodium correction limits and interaction warnings alongside electrolyte replacement priorities.
How it works
1Enter measured sodium in mmol/L, potassium in mmol/L, magnesium in mg/dL, and patient weight in kilograms.
2Select sex, age group, and the sodium correction rate limit of 8 or 12 mmol/L per 24 hours.
3The tool assesses the three electrolyte results and orders abnormalities by correction priority, with magnesium before potassium and sodium when applicable.
4The JSON result may include abnormality count, sodium and potassium deficit estimates, recommended sodium rate, magnesium replacement guidance, and safety warnings.
Use cases
Reviewing simultaneous Na/K/Mg abnormalities in nephrology or intensive-care workflows.
Identifying hypomagnesemia that may make potassium replacement refractory.
Creating a structured JSON summary of electrolyte priorities, estimates, correction limits, and warnings.
Examples
1. Three concurrent electrolyte abnormalities
Adult inpatient care team
Background
A 70 kg adult has sodium 128 mmol/L, potassium 2.8 mmol/L, and magnesium 1.2 mg/dL.
Problem
The team needs to prioritize treatment when all three electrolytes are low and assess the interaction between magnesium and potassium.
How to use
Enter sodium 128, potassium 2.8, magnesium 1.2, weight 70, select Male and Adult, and choose the 8 mmol/L per 24 hour sodium correction limit.
Decimal places: 1
Outcome
The result identifies three abnormalities, prioritizes Magnesium → Potassium → Sodium, estimates sodium and potassium deficits, and recommends a reduced sodium correction rate of 6 mmol/L per 24 hours because of ODS risk from hypomagnesemia.
2. Mild hypokalemia with hypomagnesemia
Outpatient clinician
Background
A 70 kg adult has normal sodium at 140 mmol/L, potassium 3.1 mmol/L, and magnesium 1.5 mg/dL.
Problem
The clinician wants to review the correction order for mild potassium and magnesium abnormalities without unnecessary sodium treatment.
How to use
FAQ
What values does the tool require?
It requires sodium, potassium, magnesium, body weight, sex, age group, and a sodium correction rate limit.
Why is magnesium prioritized before potassium?
Hypomagnesemia can contribute to renal potassium wasting and refractory hypokalemia, so magnesium is prioritized before potassium when both are abnormal.
Does the tool calculate sodium and potassium deficits?
Yes. The JSON output can include estimated sodium and potassium deficits when the corresponding abnormalities are present.
What sodium correction limits are available?
You can select 8 mmol/L per 24 hours for chronic cases or 12 mmol/L per 24 hours for acute symptomatic cases.
Is this tool medical advice?
No. It provides an informational correction plan and warnings; clinical decisions require qualified medical assessment.
Enter sodium 140, potassium 3.1, magnesium 1.5, weight 70, select Male and Adult, and use the default 8 mmol/L per 24 hour sodium correction limit.
Decimal places: 1
Outcome
The result identifies two abnormalities, prioritizes Magnesium → Potassium, provides magnesium and potassium replacement guidance, and indicates that no sodium correction is needed.