Combined Electrolyte Correction Plan (Na/K/Mg)

Combined Electrolyte Correction Plan (Na/K/Mg) | Online Free Tool | Elysia Tools

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.

Decimal places: 1

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Examples that match this tool

Continue with connected tools and hubs

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Three concurrent electrolyte abnormalities

2. Mild hypokalemia with hypomagnesemia

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