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Urine Specific Gravity

Normal
1. Specific Gravity: 1.005-1.030
Increased
1. Dehydration
2. Fever
3. Vomiting
4. Diarrhea
5. Diabetes Mellitus and other causes of Glycosuria
6. Congestive Heart Failure
7. Syndrome Inappropriate ADH Secretion (SIADH)
8. Adrenal Insufficiency
9. X-Ray contrast
Decreased
1. Diabetes Insipidus
2. Excessive hydration
3. Glomerulonephritis
4. Pyelonephritis
5. Diuretics
6. Adrenal Insufficiency
7. Aldosteronism
8. Renal insufficiency
Falsely decreased specific gravity
1. Alkaline urine
Falsely increased specific gravity
1. Intravenous dextran or radiopague dye
2. Proteinuria

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 5/10/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.

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Urine Specific Gravity

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