HEALTH & MEDICINE CALCULATOR
Plasma Osmolality Calculator
A precise tool.
What is the Plasma Osmolality Calculator & How does it work?
Plasma osmolality is a measure of the concentration of solutes dissolved in blood plasma, typically expressed in milliosmoles per kilogram (mOsm/kg). It is an important indicator of hydration status and electrolyte balance.
The normal range for plasma osmolality in adults is approximately 280 to 300 mOsm/kg. Deviations from this range can indicate dehydration, hypernatremia (high sodium levels), or hyponatremia (low sodium levels).
text{Plasma Osmolality} = 2 times [text{Na}^+] + [text{BUN}] / 0.7
Na+ = Sodium concentration in mmol/L
BUN = Blood urea nitrogen in mg/dL
BUN = Blood urea nitrogen in mg/dL
Parameters
Result
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Frequently Asked Questions
What is plasma osmolality?
Plasma osmolality measures the concentration of solutes in blood plasma, indicating hydration status and electrolyte balance.
How do I calculate plasma osmolality?
Use the formula: Plasma Osmolality = 2 × [Na+] + [BUN], where [Na+] is sodium concentration and [BUN] is blood urea nitrogen.
What is the normal range for plasma osmolality in adults?
The normal range for plasma osmolality in adults is approximately 280 to 300 mOsm/kg.
Can deviations from normal plasma osmolality indicate health issues?
Yes, deviations can indicate dehydration, hypernatremia (high sodium levels), or hyponatremia (low sodium levels).
What does BUN stand for in the plasma osmolality formula?
BUN stands for Blood Urea Nitrogen, a waste product filtered by the kidneys.
Why is plasma osmolality important?
Plasma osmolality is crucial for assessing hydration status and electrolyte balance in the body.
Results are for informational purposes only and do not constitute professional advice.