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Laboratory Information

Test Name

Protein urine

Synonyms

Protein:Creatinine Ratio, PCR

External Price (excl. GST)

2.63

Constituent Tests

Creatinine urine

Test Information

Department

Biochemistry

Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

4hr

Method

Cobas Pro

Unit of measurement

g/l

Reference interval

Calculation for protein creatinine ratio: (U-Protein in g/L x 1000)/U-Creatinine in mmol/L

Unlike 24hr urine, spot urine total protein concentration has not been assigned any reference limit due to considerable diurnal variation and variation with degree of urine concentration/dilution. While some suggest a reference limit of <=300mg/L, this limit is for dipstick test under point of care setting rather than for laboratory-based urine total protein test. For spot urine, protein/creatinine ratio is a more useful parameter to assess the degree of proteinuria

Uncertainty of measurement

10%

Electronic Information

Registration Code

PROUP

HL7 mapping code

$PROU

LOINC Code

2888-6

Laboratory Test Reference Guide