Electrolyte & Free Water

Electrolyte Panel

Comprehensive Salinity Index

Metabolic Inventory

Na⁺ (mEq/L)

K⁺ (mEq/L)

Cl⁻ (mEq/L)

HCO3⁻ (mEq/L)

Ca²⁺ (mg/dL)

Mg²⁺ (mg/dL)

PO₄ (mg/dL)

Albumin (g/dL)

Glucose (mg/dL)

BUN (mg/dL)

Salinity Master

Enter metabolic values to execute comprehensive electrolyte modeling and critical flagging.

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Management of hypernatremia (Serum Na > 145 mEq/L) to calculate required water replacement.

Evaluation of hyponatremia (Serum Na < 135 mEq/L) to determine sodium deficit or volume status.

Initial workup for polyuric states (Diabetes Insipidus vs. Osmotic Diuresis).

Symptomatic electrolyte disturbances in patients with significant volume loss (GI, renal, or insensible).

Clinical Objective

The primary goal is to determine the Total Body Water (TBW) deficit to guide the rate and volume of fluid resuscitation, ensuring safe correction of tonicity.

Related Scores in Practice

In clinical practice, this assessment is frequently evaluated alongside other validated measures. Depending on the patient's presentation and specific diagnostic requirements, you may also need to utilize the Sodium Correction Rate, Anion Gap Calculator or the Winter's Formula to formulate a comprehensive care plan.

Last Comprehensive Review: 2026

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