Sign in →

Test Code U Prt/Cr Urine Protein/Creatinine Ratio

Additional Codes


Prot U

Creatinine U


Sample Requirements

Specimen: Random Urine

Container(s): Sterile Screw-Capped Container, Clean container also acceptable.

Preferred Vol:  2 mL

Minimum Vol: 1 mL


Note: Calculated value - see Prot U and Cre U for collection instructions.

Processing Instructions

Reject due to:  

Spin: N

Aliquot: N

Temp: 2-8 C

Storage location: Calculated value - see Prot U and Cre U for collection instructions.


Off-site collection:  Calculated value - see Prot U and Cre U for collection instructions.



Specimen Type Temperature Time
Urine Room Temp


Urine Refrigerated

 7 D

Urine Frozen

180 D




STAT Performed TAT
N M - F, day shift  1 - 3 d


Performing Laboratory

Seattle Children's Laboratory    


Department:  Chemistry

Location: Chem East

Phone Number: 206-987-2617

Reference Range

Age mg/dL
0 - 23 months </= 0.50
>/= 2 years </= 0.20



Method: Spectrophotometry by Vitros 4600

Analytical Volume: 1 mL urine

CPT Codes

84156, 82570