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Serum Sodium using Calculated Serum Osmolality Formula

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Serum Sodium is the concentration of sodium present in the serum of blood. Check FAQs

[Na] serum = \frac{(O serum) - (\frac{G serum}{18}) - (\frac{BUN}{2.8})}{2}

[Na]_serum - Serum Sodium?O_serum - Calculated Serum Osmolality?G_serum - Serum Glucose?BUN - Blood Urea Nitrogen?

Serum Sodium using Calculated Serum Osmolality Example

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Here is how the Serum Sodium using Calculated Serum Osmolality equation looks like with Values.

Here is how the Serum Sodium using Calculated Serum Osmolality equation looks like with Units.

Here is how the Serum Sodium using Calculated Serum Osmolality equation looks like.

0.0009 = \frac{(40) - (\frac{20.5}{18}) - (\frac{7.5}{2.8})}{2}

0.0009mmol/L = \frac{(40mmol/kg) - (\frac{20.5mg/dL}{18}) - (\frac{7.5mg/dL}{2.8})}{2}

0.0009 = \frac{(40) - (\frac{20.5}{18}) - (\frac{7.5}{2.8})}{2}

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Serum Sodium using Calculated Serum Osmolality Solution

Follow our step by step solution on how to calculate Serum Sodium using Calculated Serum Osmolality?

FIRST Step Consider the formula

[Na] serum = \frac{(O serum) - (\frac{G serum}{18}) - (\frac{BUN}{2.8})}{2}

Next Step Substitute values of Variables

∴

[Na] serum = \frac{(40mmol/kg) - (\frac{20.5mg/dL}{18}) - (\frac{7.5mg/dL}{2.8})}{2}

Next Step Convert Units

∴

[Na] serum = \frac{(0.04mol/kg) - (\frac{0.205kg/m³}{18}) - (\frac{0.075kg/m³}{2.8})}{2}

Next Step Prepare to Evaluate

∴

[Na] serum = \frac{(0.04) - (\frac{0.205}{18}) - (\frac{0.075}{2.8})}{2}

Next Step Evaluate

∴

[Na] serum = 0.000912698412698414mol/m³

Next Step Convert to Output's Unit

∴

[Na] serum = 0.000912698412698414mmol/L

LAST Step Rounding Answer

∴

[Na] serum = 0.0009mmol/L

Serum Sodium using Calculated Serum Osmolality Formula Elements

Variables

Serum Sodium

Serum Sodium is the concentration of sodium present in the serum of blood.

Symbol: [Na]_serum

Measurement: Molar ConcentrationUnit: mmol/L

Note: Value should be greater than 0.

Formulas to find Serum Sodium

Calculated Serum Osmolality

Calculated Serum Osmolality refers to the calculated concentration of dissolved particles of chemicals and minerals such as sodium and other electrolytes in given serum.

Symbol: O_serum

Measurement: MolalityUnit: mmol/kg

Note: Value should be greater than 0.

Formulas to find Calculated Serum Osmolality

Serum Glucose

Serum Glucose is the amount of glucose present in the serum of blood.

Symbol: G_serum

Measurement: Mass ConcentrationUnit: mg/dL

Note: Value should be greater than 0.

Formulas to find Serum Glucose

Blood Urea Nitrogen

Blood Urea Nitrogen is a serum byproduct of protein metabolism. It is one of the oldest prognostic biomarkers in heart failure.

Symbol: BUN

Measurement: Mass ConcentrationUnit: mg/dL

Note: Value should be greater than 0.

Formulas to find Blood Urea Nitrogen

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O plasma = (2 \cdot Sodium plasma)

Go Plasma Concentration using Plasma Osmolality

Sodium plasma = \frac{O plasma}{2}

How to Evaluate Serum Sodium using Calculated Serum Osmolality?

Serum Sodium using Calculated Serum Osmolality evaluator uses Serum Sodium = ((Calculated Serum Osmolality)-(Serum Glucose/18)-(Blood Urea Nitrogen/2.8))/2 to evaluate the Serum Sodium, The Serum Sodium using Calculated Serum Osmolality formula is defined as the concentration of sodium present in the serum of blood which is calculated using Serum Osmolality. Serum Sodium is denoted by [Na]_serum symbol.

How to evaluate Serum Sodium using Calculated Serum Osmolality using this online evaluator? To use this online evaluator for Serum Sodium using Calculated Serum Osmolality, enter Calculated Serum Osmolality (O_serum), Serum Glucose (G_serum) & Blood Urea Nitrogen (BUN) and hit the calculate button.

FAQs on Serum Sodium using Calculated Serum Osmolality

What is the formula to find Serum Sodium using Calculated Serum Osmolality?

The formula of Serum Sodium using Calculated Serum Osmolality is expressed as Serum Sodium = ((Calculated Serum Osmolality)-(Serum Glucose/18)-(Blood Urea Nitrogen/2.8))/2. Here is an example- 0.000913 = ((0.04)-(0.205/18)-(0.075/2.8))/2.

How to calculate Serum Sodium using Calculated Serum Osmolality?

With Calculated Serum Osmolality (O_serum), Serum Glucose (G_serum) & Blood Urea Nitrogen (BUN) we can find Serum Sodium using Calculated Serum Osmolality using the formula - Serum Sodium = ((Calculated Serum Osmolality)-(Serum Glucose/18)-(Blood Urea Nitrogen/2.8))/2.

Can the Serum Sodium using Calculated Serum Osmolality be negative?

No, the Serum Sodium using Calculated Serum Osmolality, measured in Molar Concentration cannot be negative.

Which unit is used to measure Serum Sodium using Calculated Serum Osmolality?

Serum Sodium using Calculated Serum Osmolality is usually measured using the Millimole per Liter[mmol/L] for Molar Concentration. Mole per Cubic Meter[mmol/L], Mole per Liter[mmol/L], Mole per Cubic Millimeter[mmol/L] are the few other units in which Serum Sodium using Calculated Serum Osmolality can be measured.

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Serum Sodium using Calculated Serum Osmolality Formula

Serum Sodium using Calculated Serum Osmolality Example

Serum Sodium using Calculated Serum Osmolality Solution

Serum Sodium using Calculated Serum Osmolality Formula Elements

Other formulas in Osmolality category

How to Evaluate Serum Sodium using Calculated Serum Osmolality?

FAQs on Serum Sodium using Calculated Serum Osmolality

Variable Name