KFT Kidney Function Test - Urea Creatinine (2 Tests)
Also Known As
Test Parameters Included
- Serum Urea: Urea is a byproduct of protein breakdown in the liver. While it is a good marker for kidney function, it can also be affected by a very high-protein diet, dehydration, or certain medications.
- Serum Creatinine: Creatinine is a waste product from the normal wear and tear of muscles. It is considered a more stable and specific marker of kidney function than Urea because it is less influenced by diet or hydration.
Department
Methodology
Sample Required
Preparation
Schedule Report
6 Hours
Emergency Report
Yes
Frequently Asked Questions
Why does the report take 6 hours?
Our automated chemistry analyzers process these tests quickly, but every result is verified by a pathologist to ensure accuracy.
Can a high-protein diet affect my result?
Yes, a very high-protein meal can temporarily increase your Urea levels.
Why is my creatinine higher than my friend's?
Creatinine is related to muscle mass; people with more muscle naturally have slightly higher normal levels.
Can dehydration affect the test?
Yes, dehydration can cause Urea to rise faster than Creatinine, often resulting in a high Urea/Creatinine ratio.
Is this test the same as a "full" KFT?
No, a full KFT usually includes electrolytes (Sodium, Potassium, Calcium) and Uric Acid.
Can I take my blood pressure meds before the test?
Yes, continue your medications as prescribed unless your doctor says otherwise.
What is the "Urea/Creatinine Ratio"?
It helps doctors determine if a high result is due to kidney disease or other factors like dehydration or internal bleeding.
Can I drink water before the test?
Yes, staying hydrated is actually better for an accurate assessment of kidney function.
Does age affect kidney function?
Yes, kidney filtration naturally declines slowly as we get older.
Can muscle supplements affect the test?
Yes, taking creatine supplements can lead to higher creatinine levels in the blood.
Why check both Urea and Creatinine?
Checking both provides a more complete picture than checking just one, as they react differently to diet and hydration.
Is this test done on a fasting sample?
It is preferred, but Urea and Creatinine can be tested on a non-fasting sample in emergencies.
Can "liver issues" affect Urea?
Yes, because Urea is made in the liver, severe liver disease can actually cause Urea levels to be unusually low.
What should I do if my creatinine is 1.5?
You should consult your doctor; a result above 1.2 usually requires a follow-up eGFR or ultrasound.
Is the test result confidential?
Absolutely. At Dr. Patho, all your renal and diagnostic data are protected by strict privacy protocols.
Test Description
Test Code
U01,C55
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