Renal Function Test (RFT) in Mumbai
Also called: Kidney Function Test (KFT)
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What is a Renal Function Test (RFT) ?
The Renal Function Test (RFT) is a vital blood test panel designed to assess how efficiently your kidneys are functioning. Your kidneys play a critical role in filtering waste products from the blood, maintaining the body’s fluid balance, and regulating essential minerals required for healthy organ function. An RFT helps detect kidney-related concerns early, monitor ongoing kidney conditions, and evaluate overall renal health.
The Importance of Your Kidneys
Your kidneys are two bean-shaped organs located at the back of your abdomen that work as the body’s natural filtration system.
They are responsible for:
Filtering waste products and toxins from the blood
Removing excess fluids through urine
Maintaining electrolyte balance in the body
Supporting healthy blood pressure regulation
Helping maintain the body’s chemical balance
When kidney function is impaired, waste products and electrolyte imbalances can build up in the body, potentially leading to serious health complications.
Components of the Renal Function Test (RFT)
A typical RFT includes the following important parameters:
Urea
Urea is a waste product formed when the body breaks down proteins. Healthy kidneys filter urea out of the bloodstream and remove it through urine. Elevated urea levels may indicate reduced kidney function, dehydration, or other metabolic concerns.
Serum Creatinine
Creatinine is a waste product generated from normal muscle activity. Since the kidneys are responsible for clearing creatinine from the blood, abnormal serum creatinine levels can be a strong indicator of impaired kidney filtration.
Serum Electrolytes
Electrolytes are essential minerals that help regulate hydration, nerve function, muscle activity, and acid-base balance.
This panel commonly includes:
Sodium (Na): Helps regulate fluid balance and nerve signaling
Potassium (K): Essential for heart rhythm and muscle function
Chloride (Cl): Supports fluid balance and acid regulation
Abnormal electrolyte levels may suggest kidney dysfunction, dehydration, or metabolic imbalances.
When Is an RFT Recommended?
A healthcare provider may recommend an RFT for:
Routine preventive health checkups
Monitoring existing kidney conditions
Individuals with diabetes or high blood pressure
Symptoms such as swelling, fatigue, reduced urination, or fluid retention
Evaluating dehydration or electrolyte imbalance
Monitoring the effect of certain medications on kidney health
The Procedure
The Renal Function Test is a simple blood test that involves collecting a blood sample from a vein, usually from your arm. The procedure is quick, minimally invasive, and typically completed within a few minutes.
Interpreting the Results
Your healthcare provider will evaluate the combined results of urea, serum creatinine, and electrolyte levels to understand how effectively your kidneys are functioning.
Possible indicators include:
High Urea: May suggest kidney stress, dehydration, or increased protein breakdown
Elevated Serum Creatinine: May indicate reduced kidney filtration efficiency
Abnormal Electrolytes: May point toward kidney dysfunction or fluid imbalance
Early detection through RFT can help identify kidney issues before symptoms become severe, allowing timely medical intervention and better long-term health management.
Who should take this test
The Renal Function Test panel shows how well your kidneys are working. It is advised if:
- You have swelling in the feet, ankles or face
- Your urination has changed in amount or frequency
- You have diabetes or high blood pressure
- You feel tired, itchy or have lost your appetite
- Kidney disease runs in your family
- You use painkillers frequently
Renal Function Test (RFT) testing in Mumbai
Tapadia Diagnostic Centre in Mumbai offers NABL-accredited Renal Function Test (RFT) test from a Blood and urine sample(s). Kidney Function Test (KFT) is also prescribed for Swelling, fatigue, changes in urination, suspected kidney dysfunction. Established in 1989, this doctor-led diagnostic centre ensures high accuracy. Home sample collection and walk-in facility available at our Mumbai center. Pay at the centre with no advance payment. Book online or visit us.
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