Serum Osmolality & Hyperglycemia Sodium Correction (Katz)

Compute calculated serum tonicity and true sodium concentration during elevated glucose.

Calculated Serum Osmolality
291.54 mOsm/kg
Katz Corrected Sodium (1.6 factor) 136.48 mEq/L
Hillier Corrected Sodium (2.4 factor) 138.72 mEq/L
Effective Osmolality (Tonicity) 285.11 mOsm/kg
Inputs
mEq/L
Measured serum sodium in mEq/L.
mg/dL
Serum glucose concentration in mg/dL.
mg/dL
Blood Urea Nitrogen (BUN) in mg/dL.
Results & Graph
Calculated Serum Osmolality
291.54 mOsm/kg
Katz Corrected Sodium (1.6 factor)
136.48 mEq/L
Hillier Corrected Sodium (2.4 factor)
138.72 mEq/L
Effective Osmolality (Tonicity)
285.11 mOsm/kg

Calculated Serum Osmolality

Graph 1 • Sodium Meq L Sensitivity Recalculates the domain equation across 50% to 150% of the primary input while holding other parameters constant.
0 mOsm/kg 228.7 mOsm/kg 457.4 mOsm/kg 50%: 159.54 mOsm/kg 159.5 50% 75%: 225.54 mOsm/kg 225.5 75% 100%: 291.54 mOsm/kg 291.5 100% 125%: 357.54 mOsm/kg 357.5 125% 150%: 423.54 mOsm/kg 423.5 150%
Graph 2 • Primary & Supporting Metric Comparison Compares the primary output alongside supporting domain benchmarks.
Calculated Serum Osmolality 291.54 mOsm/kg Katz Corrected Sodium (1.6 factor) 136.48 mEq/L Hillier Corrected Sodium (2.4 factor) 138.72 mEq/L Effective Osmolality (Tonicity) 285.11 mOsm/kg
Graph 3 • Exact Output Table & Units Displays each calculated output in its exact domain unit.
Calculated Serum Osmolality291.54 mOsm/kgKatz Corrected Sodium (1.6 factor)136.48 mEq/LHillier Corrected Sodium (2.4 factor)138.72 mEq/LEffective Osmolality (Tonicity)285.11 mOsm/kg
Summary: Calculated serum osmolality is 291.5 mOsm/kg. Katz corrected sodium is 136.5 mEq/L (Hillier: 138.7 mEq/L).
Summary: Calculated serum osmolality is 291.5 mOsm/kg. Katz corrected sodium is 136.5 mEq/L (Hillier: 138.7 mEq/L).

Formula & Mathematical Methodology: Osmolality & Na+ Reference Equation

Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8)
CorrectedNa = Na + 0.016 × (Glucose − 100)
Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8); CorrectedNa = Na + 0.016 × (Glucose − 100)
  • sodiumMeqL: Sodium Meq L (mEq/L)
  • glucoseMgDl: Glucose Mg Dl (mg/dL)
  • bunMgDl: Bun Mg Dl (mg/dL)

Rounding: Intermediate calculations retain full IEEE-754 floating-point precision; displayed clinical and fitness metrics round to 1 or 2 decimal places.

Worked Example: Benchmark Scenario: Osmolality & Na+

Compute calculated serum tonicity and true sodium concentration during elevated glucose.

  1. Enter your current anthropometric, laboratory, or training measurements in the units indicated.
  2. Substitute the values into the reference formula: Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8); CorrectedNa = Na + 0.016 × (Glucose − 100).
  3. Compare the primary output and supporting thresholds across all three custom SVG charts.
Result: Evaluates Osmolality & Na+ using Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8); CorrectedNa = Na + 0.016 × (Glucose − 100).

Frequently Asked Questions

How is the Serum Osmolality & Hyperglycemia Sodium Correction (Katz) calculated?

It evaluates Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8); CorrectedNa = Na + 0.016 × (Glucose − 100) using your entered parameters and displays supporting clinical or training thresholds alongside three interactive SVG visualizations.

Can I compare multiple scenarios side by side?

Yes. Click the Compare button in the results panel to pin up to 3 input scenarios and inspect how changing any parameter shifts the outcome.

Are my health or fitness inputs stored on any server?

No. Every calculation executes 100% inside your browser tab so sensitive health and wellness numbers never leave your device.

Health & Fitness • Clinical & Lab Equations Guide

How to Use the Serum Osmolality & Hyperglycemia Sodium Correction (Katz): Practical Guide & Visual Analysis

Calculate serum osmolality (mOsm/kg) and Katz/Hillier corrected serum sodium for hyperglycemia. Adjust the inputs above to view instant numerical outputs, three custom domain-specific SVG graphs, and reference methodology. Whether you are researching serum osmolality & hyperglycemia sodium correction (katz), osmolality & na+, serum osmolality sodium correction, clinical & lab equations calculator, this interactive tool helps you calculate serum osmolality (mOsm/kg) and Katz/Hillier corrected serum sodium for hyperglycemia.

Interpreting the 3 Custom Visual Graphs & Key Outputs

As you adjust Sodium Meq L, Glucose Mg Dl, Bun Mg Dl, the calculator immediately computes Primary physiological or clinical metric, Supporting reference benchmarks, 3-Panel custom domain SVG visualization and updates all three domain-specific SVG charts in real time. Instead of relying on a single static figure, you can inspect the primary domain diagram, component breakdown, and multi-point trajectory curve to see how changing your inputs shifts the final result. Use the Compare (up to 3 scenarios) button to evaluate side-by-side variations before making a decision.

Real-World Benchmark & Planning Tips (Global Clinical & Exercise Physiology Reference)

In our benchmark scenario (Benchmark Scenario: Osmolality & Na+), Evaluates Osmolality & Na+ using Osmolality = 2 × Na + (Glucose / 18) + (BUN / 2.8); CorrectedNa = Na + 0.016 × (Glucose − 100). Keep in mind that uses peer-reviewed population equations and standard physiological constants. For related calculations in Health & Fitness, explore BMI Calculator (Body Mass Index), Calorie Needs & TDEE Calculator, Body Fat (US Navy), Lean Body Mass & Body Surface Area Calculator.