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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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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: 0.0009 Millimole per Liter --> 0.0009 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*0.0009)+(0.205/18)+(0.075/2.8)

Evaluating ... ...

O_serum = 0.0399746031746032

STEP 3: Convert Result to Output's Unit

0.0399746031746032 Mole per Kilogram -->39.9746031746032 Millimole per Kilogram (Check conversion here)

FINAL ANSWER

39.9746031746032 ≈ 39.9746 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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Calculated Serum Osmolality Formula

LaTeX Go

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 -> 39974.6 = (2*0.0009)+(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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