Reference range
Conventional
1.0051.03
| Specimen | Random urine |
|---|---|
| Conventional range | 1.005–1.03 |
| SI range | 1.005–1.03 |
| Conversion factor | ×1 (conventional → SI) |
| Panel | Urinalysis |
Convert any Urine Specific Gravity result between units on the unit converter.
Urinalysis
Urine Specific Gravity
Normal range 1.005–1.03. Specimen: Random urine.
Also known as: USG, SG.
1.005–1.03Reference range
What is the normal range for Urine Specific Gravity?
The standard teaching reference range for Urine Specific Gravity is 1.005–1.03. This value is measured in random urine.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.
Above the range
Common causes of a high Urine Specific Gravity
- Dehydration
- SIADH
- Glucosuria or proteinuria
- Radiographic contrast
Below the range
Common causes of a low Urine Specific Gravity
- Overhydration
- Diabetes insipidus
- Renal tubular disease
At the bedside
Nursing considerations
- Reflects urine concentration and hydration; a fixed 1.010 suggests impaired concentrating ability.
Study aid
Your notes on Urine Specific Gravity
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