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Urinalysis Reference Ranges

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Back To: Clinician on FHIR - May 2017 Madrid, Spain

  • Specific Gravity (1.002 – 1.035)
  • pH (4.5-8.0)
  • Protein: < 150mg/24 hours or < 10mg/100mL
  • Microalbumin:
Range of < 30 to 300 mg/24 hours
less than 20 milligrams per liter (mg/L) for 10-hour (overnight) collection
Range of < 20 to 200 mcg/min
  • Nitrites: 0 (Note: positive indicates bacteria in urine. Positive test strongly suggests infection but negative test does not exclude it (PPV 95% and NPV 25 – 70 %))
  • Ketones: 0 (Note: positive results in diabetes mellitus or other glucose metabolism disorder. Also found among people with fevers, anorexia, gastro-intestinal disturbances, fasting, starvation, anesthesia)
  • Microscopy:
- WBC: > 8 x 10^6
- RBC: aren't found in urine normally. Inflammation, disease, or injury to the kidneys, ureters, bladder, or urethra can cause blood in urine. Strenuous exercise, such as running a marathon, can also cause blood in the urine