Lab

Urine Specific Gravity

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Urine Specific Gravity, Urine Dipstick Specific Gravity

  • See Also
  1. Urinalysis
  • Interpretation
  1. Normal Specific Gravity: 1.005-1.030
  • Causes
  • Increased Specific Gravity (concentrated urine)
  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
  • Causes
  • Decreased Specific Gravity (dilute urine)
  1. Diabetes Insipidus
  2. Excessive hydration
  3. Glomerulonephritis
  4. Pyelonephritis
  5. Diuretics
  6. Adrenal Insufficiency
  7. Aldosteronism
  8. Renal Insufficiency
  9. Water Intoxication
  • Causes
  • Falsely Decreased specific gravity
  1. Alkaline urine
  • Causes
  • Falsely Increased specific gravity
  1. Intravenous Dextran
  2. Intravenous radiopaque dye
  3. Proteinuria
  4. Phenazopyridine (Pyridium)
  • References
  1. Hitzeman (2022) Am Fam Physician 106(1): 27-35 [PubMed]