Protein, Timed Urine


Sunquest Code:UTPT  
Epic Code:LAB440Epic Name:Protein Timed Urine
Synonyms:Urine Protein/Creatinine Ratio; Urine, Timed; 24 Hour Urine; UTPT
Methodology:Bichromatic endpoint
St Johns/St Joseph/Woodwinds: Benzalkonium chloride
Test Includes:Creatinine Urine mg/dL; Total Protein Random Urine g/L; Total Protein Timed Urine g/spec; Total Protien Urine g/gr Creatinine, Duration in hours, Volume in mL, Creatinine Urine Timed g/spec
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure



Collection Instructions

Specimen:Urine, timed collection (20 to 28 hours). If using test to diagnose orthostatic proteinuria, collect two 12 hour collections: one DAY and one NIGHT and order UTPT/LAB440 twice
Optimal Volume:Submit entire collection; analysis requires 1 mL
Container:3 L plastic jug
Collection Instructions:Place specimen on ice or in refrigerator during collection.
Causes for Rejection:Specimen collected with acetic acid, thymol, or sodium fluoride preservative.


Processing and Shipping

Specimen Processing:If two or more containers are received, verify that they are for the same collection time before combining. Mix collection well before aliquot is taken. Aliquot 5 mL, 1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:24 hours at room temperature; 3 days refrigerated.
Test Performed at or Referral Lab Chemistry  (Range, UMMC-East Bank, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca, St. Joseph's, St. John's, Woodwinds)


Interpretive

Reference Range:Grand Itasca:
Urine protein 1-14 mg/dL
Urine protein total/24 hr 0-150 mg/spec
 
Other sites:
Age Female g/spec Male g/spec
0-2 y N/A  
3-8 y 0.11-0.68 0.0.11-0.68
9-12 y 0.17-1.41 0.17-1.41
13-17 y 0.29-1.87 0.29-1.87
18 y & older 0.80-1.80 1.00-2.00
 
Use:Quantitative evaluation of proteinuria; evaluate renal diseases, hypoproteinemia, monitor renal transplant.


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