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Epic Test Code LAB439 Protein, Total: Urine, Random

Performing Location(s)

BMC

Specimen Type

Random Urine

Preferred Container

Random Urine Tube

Minimum Volume to Submit for Testing

5 mL Urine

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Keep urine refrigerated

Transportation Needs

Deliver specimen to the laboratory within 1 hour of collection.

If transportation is expected to exceed 1 hour, provisions must be made to keep the urine chilled

Causes for Rejection

Mislabeled or unlabeled specimen

Bloody specimens (hemolysis)

Hemolysis

 Collected with preservative

>12 hrs room Temperature
>24 hrs Refrigerated

Limitations

This methodology is prone to aminoglycoside interference. The presence of Neomycin, Gentamicin, Tobramycin, Kanamycin, Geneticin, Streptomycin, Amikacin and/or Dihydrostreptomycin will falsely increase the Protein result in urines tested by this Fujita method.

 

Specimens with visible red cells or hemolysis should be avoided since hemolysis increases Urine/CSF Total Protein results (at 25 mg/dL hemoglobin.

 

The sensitivity of the Urine/CSF Total Protein method is 2 mg/dL [20 mg/L] and represents the lowest concentration of urine or cerebrospinal fluid protein that can be distinguished from zero. This sensitivity is defined as the concentration of two standard deviations above the 0 mg/dL [0 mg/L] level (n=20).

Reference Values

Population Units Reference Range
All populations mg/dL <15

 

Includes

Urine Total Protein, Urine Protein Output

Days of Analysis

All

Available STAT

Yes

Additional Information

Note: If a urine protein to urine creatinine ratio is desired, a Creatinine: Urine, Random (LIS order code:RUCR) and Urine Protein:Urine Creatinine Ratio (LIS order code:UPC) must also be ordered.

 

Additional Information:

Effective September, 2005, electrophoresis will no longer be performed on urines with a total protein <15 mg/dL. There is no clinical significance when the protein is low. Requests for urine electrophoresis received on specimens with Total Protein <15 mg/dL will be cancelled with the reason (“Total Protein <15 mg/dL”).

Methodology

Beckman AU/Dx Series

CPT Code

84156

Last Updated

30-Aug-21