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Specific Gravity, Urine

Test Code
SGUR - NOCO


CPT Codes
81003

Preferred Specimen
10 mL urine in clean, plastic urine container


Minimum Volume
1.0 mL


Other Acceptable Specimens
Urine preservative tube


Instructions
  • Collect a random urine specimen (Instructions: English / Spanish). Maintain sterility.
  • Specimen must arrive within 60 minutes of collection
  • If longer than 60 minutes before analysis, store at 2°-8°C.


Specimen Stability
Specimen Type Temperature Time
Urine Ambient 1 hour
Urine Refrigerated 24 hours
Urine No Preservative Tube (Yellow) Refrigerated 24 hours
Urine Preservative Tube (Yellow Tiger) Ambient 72 hours


Methodology
Refractometer

Setup Schedule
Monday through Sunday; Continuously


Report Available
Same day


Reference Range
  Macroscopic Dipstick iChem Dipstick
Specific Gravity 1.005-1.035 1.000-1.040


Clinical Significance
The measurement of specific gravity gives an indication of the total solute concentration. The inability to concentrate or dilute urine is an indication of renal disease or hormonal deficiency. In serous fluids, the specific gravity helps to differentiate between exudates and transudates.


Performing Laboratory
Banner Fort Collins Medical Center Laboratory
McKee Medical Center Laboratory
North Colorado Medical Center laboratory
Summit View Laboratory



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.