Quantitation of proteinuria by morning spot urine sampling

The study was conducted to determine whether a spot morning urinary protein/cretinine ratio provides accurate quantitation of 24 hours urinary protein excretion in non-diabetic outpatient population. Patients were classified into 5 categories on the basis of urinary protein/cretinine ratio and 24 hours urinary protein excretion was measured in each category and their correlation was studied. Results showed highly reliable correlation between the two and it could be exploited in clinical setting by choosing morning spot urinary protein/cretinine ratio instead of timed urinary protein excretion to quantitate the proteinuria