What is Protein/Creatinine Ratio?
The Protein/Creatinine Ratio test is performed to screen for excessive proteins excreted in urine to help in monitoring kidney functioning. It also helps to determine any damage caused to the kidneys.
Why is Protein/Creatinine Ratio done?
The Protein/Creatinine Ratio is done:
To monitor kidney functioning as a part of a routine checkup or as part of a follow-up to a previous positive urine protein test
To check for damage when the patient is suffering from a condition that affects the kidneys
To see if a kidney function is responding to the suggested treatment
If you have symptoms of a urinary tract infection (UTI)
What does Protein/Creatinine Ratio Measure?
The Protein/Creatinine Ratio measures the excessive protein excreted in the urine. The urine protein tests measure the protein which is released into the urine. Normally, the urine protein elimination is less than 150 mg/day and less than 30 mg of albumin/day. Temporarily raised levels may be seen in conditions such as stress, infections, pregnancy, cold exposure, diet, or heavy exercise.
Appearance of persistent protein discharge in the urine suggests possible kidney damage or requirement of additional testsing to know the cause.
Creatinine is a byproduct of muscle metabolism. Normally, creatinine is released into the urine at a constant rate.
In a normal functioning kidney, the filtered proteins are retained or reabsorbed and sent back to the blood. Whereas, if any damage is caused to the kidneys then it may affect their functioning which may cause detectable amounts of protein extracted into the urine.
Interpreting Protein/Creatinine Ratio results
1.00 - 5.00
Reference range may vary from lab to lab*