Osmolality, Urine
Understanding Osmolality, Urine
What is Osmolality, Urine?
Osmolality refers to the concentration of dissolved particles within a given unit of water. This test measures the concentration of particles dissolved in urine, such as salts, sugars, and other substances. The Osmolality, Urine test assess problems with body water balance and fluid regulation; diagnose conditions such as hyper or hyponatremia; and to monitor the effectiveness of treatment for these conditions.This test is recommended for assessing renal concentrating ability; evaluating patients with suspected kidney disorders; monitoring patients with known kidney diseases or diabetes insipidus; evaluating fluid and electrolyte imbalances as in chronic diarrhea, prolonged vomiting, dehydration; evaluating patients with high or low blood sodium and patients with symptoms such as increased thirst, frequent urination, fatigue, or confusion.
What is Osmolality, Urine used for?
The Urine Osmolality test is performed when one or more of the following symptoms appear:
• Abnormal sodium level in blood
• Lethargy
• Excessive thirst and urination
• Dehydration
• Nausea
• Chronic diarrhea
The test may also be performed when the patient has consumed methanol, spurious alcohol, etc.
Interpreting Osmolality, Urine results
Interpretations
Test results are expressed in mOsm/kg (miliosmoles/kg water), and the normal range for urine osmolality test is 500-850 mOsm/kg.
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