Tests
Osmolality Tests
Osmolality tests measure the amount of certain substances in your blood, urine, or stool (poop). The tests can show how your kidneys are working and whether you have an unhealthy fluid balance .
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Tests
Osmolality tests measure the amount of certain substances in your blood, urine, or stool (poop). The tests can show how your kidneys are working and whether you have an unhealthy fluid balance .
Indicators
The concentration of osmoles of solute per kilogram of solvent present in a sample.
Glossary Term
The concentration of osmoles of solute per kilogram of solvent present in a sample.
Tests
The determination of the osmoles of solute per kilogram of solvent present in a sample.
Indicators
A nitrogenous compound containing a carbonyl group attached to two amine groups with osmotic diuretic activity. In vivo, urea is formed in the liver via the urea cycle from ammonia and is the final end product of protein metabolism. Administration of urea elevates blood plasma osmolality, resulting in enhanced flow of water from tissues, including the brain, cerebrospinal fluid and eye, into interstitial fluid and plasma, thereby decreasing pressure in those tissues and increasing urine outflow.