Calculated Serum Osmolality Calculator

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✖Serum Sodium is the concentration of sodium present in the serum of blood.ⓘ Serum Sodium [[Na]_serum]			+10% -10%
✖Serum Glucose is the amount of glucose present in the serum of blood.ⓘ Serum Glucose [G_serum]			+10% -10%
✖Blood Urea Nitrogen is a serum byproduct of protein metabolism. It is one of the oldest prognostic biomarkers in heart failure.ⓘ Blood Urea Nitrogen [BUN]			+10% -10%

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

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Formula

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Calculated Serum Osmolality

Formula

`"O"_{"serum"} = (2*"[Na]"_{"serum"})+("G"_{"serum"}/18)+("BUN"/2.8)`

Example

`"2438.175mmol/kg"=(2*"1.2mmol/L")+("20.5mg/dL"/18)+("7.5mg/dL"/2.8)`

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Calculated Serum Osmolality Solution

STEP 0: Pre-Calculation Summary

Formula Used

Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8)
O_serum = (2*[Na]_serum)+(G_serum/18)+(BUN/2.8)
This formula uses 4 Variables

Variables Used

Calculated Serum Osmolality - (Measured in Mole per Kilogram) - Calculated Serum Osmolality refers to the calculated concentration of dissolved particles of chemicals and minerals such as sodium and other electrolytes in given serum.
Serum Sodium - (Measured in Mole per Cubic Meter) - Serum Sodium is the concentration of sodium present in the serum of blood.
Serum Glucose - (Measured in Kilogram per Cubic Meter) - Serum Glucose is the amount of glucose present in the serum of blood.
Blood Urea Nitrogen - (Measured in Kilogram per Cubic Meter) - Blood Urea Nitrogen is a serum byproduct of protein metabolism. It is one of the oldest prognostic biomarkers in heart failure.

STEP 1: Convert Input(s) to Base Unit

Serum Sodium: 1.2 Millimole per Liter --> 1.2 Mole per Cubic Meter (Check conversion here)
Serum Glucose: 20.5 Milligram per Deciliter --> 0.205 Kilogram per Cubic Meter (Check conversion here)
Blood Urea Nitrogen: 7.5 Milligram per Deciliter --> 0.075 Kilogram per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

O_serum = (2*[Na]_serum)+(G_serum/18)+(BUN/2.8) --> (2*1.2)+(0.205/18)+(0.075/2.8)

Evaluating ... ...

O_serum = 2.4381746031746

STEP 3: Convert Result to Output's Unit

2.4381746031746 Mole per Kilogram -->2438.1746031746 Millimole per Kilogram (Check conversion here)

FINAL ANSWER

2438.1746031746 ≈ 2438.175 Millimole per Kilogram <-- Calculated Serum Osmolality

(Calculation completed in 00.004 seconds)

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Created by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

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< 17 Osmolality Calculators

Peak Resolution in Chromatography

Go Peak Resolution = (Retention Volume of Molecule 2-Retention Volume of Molecule 1)/((Width of Chromatographic Peak of Molecule 1+Widths of Chromatographic Peak of Molecule 2)/2)

Blood Urea Nitrogen using Calculated Serum Osmolality

Go Blood Urea Nitrogen = 2.8*((Calculated Serum Osmolality)-(2*Serum Sodium)-(Serum Glucose/18))

Serum Glucose using Calculated Serum Osmolality

Go Serum Glucose = 18*((Calculated Serum Osmolality)-(2*Serum Sodium)-(Blood Urea Nitrogen/2.8))

Serum Sodium using Calculated Serum Osmolality

Go Serum Sodium = ((Calculated Serum Osmolality)-(Serum Glucose/18)-(Blood Urea Nitrogen/2.8))/2

Calculated Serum Osmolality

Go Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8)

Width of Chromatographic Peak using Column Efficiency

Go Width of Chromatographic Peak = Retention Volume/(sqrt(Column Efficiency/16))

Retention Volume using Column Efficiency

Go Retention Volume = Width of Chromatographic Peak*(sqrt(Column Efficiency/16))

Increase of Splicing Potential by Wild-type Sequence

Go Splicing Potential = log10(Weight Factor for Increase of Splicing Potential)

Column Efficiency in Chromatography

Go Column Efficiency = 16*((Retention Volume/Width of Chromatographic Peak)^2)

Calculated Serum Osmolality using Osmolar Gap

Go Calculated Serum Osmolality = Measured Osmolality-Osmolar Gap

Measured Osmolality using Osmolar Gap

Go Measured Osmolality = Osmolar Gap+Calculated Serum Osmolality

Osmolar Gap

Go Osmolar Gap = Measured Osmolality-Calculated Serum Osmolality

Total Volume of Mobile Phase within Column given Retention Factor

Go Void Volume = Retention Volume/(Retention Factor+1)

Retention Volume using Retention Factor

Go Retention Volume = Void Volume*(Retention Factor+1)

Decrease of Splicing Potential by Mutant Sequence

Go Splicing Potential = -log10(Weight Factor)

Plasma Osmolality

Go Plasma Osmolality = (2*Sodium Concentration in Plasma)

Plasma Concentration using Plasma Osmolality

Go Sodium Concentration in Plasma = Plasma Osmolality/2

Calculated Serum Osmolality Formula

Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8)
O_serum = (2*[Na]_serum)+(G_serum/18)+(BUN/2.8)

What is Osmoregulation?

Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated. Osmotic pressure is a measure of the tendency of water to move into one solution from another by osmosis.

How to Calculate Calculated Serum Osmolality?

Calculated Serum Osmolality calculator uses Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8) to calculate the Calculated Serum Osmolality, The Calculated Serum Osmolality formula is defined as the number of moles of dissolved particles (charged or uncharged solutes) per kilogram of serum. Calculated Serum Osmolality is denoted by O_serum symbol.

How to calculate Calculated Serum Osmolality using this online calculator? To use this online calculator for Calculated Serum Osmolality, enter Serum Sodium ([Na]_serum), Serum Glucose (G_serum) & Blood Urea Nitrogen (BUN) and hit the calculate button. Here is how the Calculated Serum Osmolality calculation can be explained with given input values -> 2.4E+6 = (2*1.2)+(0.205/18)+(0.075/2.8).

FAQ

What is Calculated Serum Osmolality?

The Calculated Serum Osmolality formula is defined as the number of moles of dissolved particles (charged or uncharged solutes) per kilogram of serum and is represented as O_serum = (2*[Na]_serum)+(G_serum/18)+(BUN/2.8) or Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8). Serum Sodium is the concentration of sodium present in the serum of blood, Serum Glucose is the amount of glucose present in the serum of blood & Blood Urea Nitrogen is a serum byproduct of protein metabolism. It is one of the oldest prognostic biomarkers in heart failure.

How to calculate Calculated Serum Osmolality?

The Calculated Serum Osmolality formula is defined as the number of moles of dissolved particles (charged or uncharged solutes) per kilogram of serum is calculated using Calculated Serum Osmolality = (2*Serum Sodium)+(Serum Glucose/18)+(Blood Urea Nitrogen/2.8). To calculate Calculated Serum Osmolality, you need Serum Sodium ([Na]_serum), Serum Glucose (G_serum) & Blood Urea Nitrogen (BUN). With our tool, you need to enter the respective value for Serum Sodium, Serum Glucose & Blood Urea Nitrogen and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Calculated Serum Osmolality?

In this formula, Calculated Serum Osmolality uses Serum Sodium, Serum Glucose & Blood Urea Nitrogen. We can use 1 other way(s) to calculate the same, which is/are as follows -

Calculated Serum Osmolality = Measured Osmolality-Osmolar Gap

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