Test Directory

Total Protein Urine

Loinc

Expected Turnaround

24 hours

Information

Protein measurements in urine are used in the diagnosis and treatment of disease conditions such as renal or heart diseases, or thyroid disorders, which are characterized by proteinuria or albuminuria.

Collection Information

Samples for urinary/CSF protein should be collected before fluorescein is given or at least 24 hours later.

Methodology

Turbidimetric

Limitations

Levodopa, methyldopa and Na2‑cefoxitin cause artificially high total protein results and calcium dobesilate causes artificially low protein results at the therapeutic drug level.

Rejection Criteria

Hemolysis

Specimen Stability

Room temperature: 1 day Refrigerated: 1 week Frozen: 1 month

Alias

Total Protein urine; Protein, Total Urine

Container Type

25 hour urine collection jug. Use 24‑hour urine specimens. Use no preservatives. Refrigerate specimen during collection.

Minimum Volume

3 ML

Age Range

0 - 999

Sex

Generic

Units of Measure

Reference Range

30 - 150

Panic Range