Test Name

Total protein urine

Test Code

266

Unit

mg/24hr

Station

Chemistry

Synonym Name/Abbreviation

Protein, Total, Quantitative, 24-Hour
Urine

CPT Code

84156

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Roche cobas 6000

Test Method

Immunoturbidimetric assay

AML Preferred Tube

24 Hour Urine Collection

Storage Instructions

Stability:
1 day at 15-25 ^oC.
7 days at 2 – 8 ^oC.
1 month at -15 to – 25 ^oC.

Min. Volume

1 mL of well mixed urine from measured 24 hour
collection.

Turn-Around-Time

One day

Intended Use

Evaluation of renal diseases, including proteinuria, diabetes
mellitus, systemic lupus erythematosus (SLE), constrictive pericarditis
and amyloidosis, malignant hypertension, glomerulonephritis, Goodpasture
syndrome, Henoch-Schonlein purpura, thrombotic thrombocytopenic purpura,
collagen diseases, cryoglobulinemia, toxemia of pregnancy, drug
nephrotoxicity,  allergic reactions ; manage myeloma and
macroglobulinemia of Waldenstr?m (Bence Jones proteinuria). Also useful
for the  evaluation of hypoproteinemia and  tubular
proteinurias.

Limitations

Hemolysis
and certain drugs as Levodopa, Methyldopa and Cefoxitin interfere with the
test. In very rare cases of gammopathy (Waldestrom’s), may cause
irreliable results

Patient Preparation

Instruct the patient to void at 8 AM and discard the
specimen. Then collect all urine including the final specimen voided at
the end of the 24-hour collection period (i.e. 8 AM the next
morning).

Reasons for Rejection

Grossly bloody specimen; incomplete collection; specimen
containing Pyridium; improper labeling

Adult Reference Ranges

50-150
mg/24h