Kidney Function Test (KFT)

What is a Kidney Function Test?

A Kidney Function Test (KFT) — also known as a renal function panel — assesses how effectively your kidneys are removing waste from your blood and maintaining electrolyte balance. Healthy kidneys filter about 180 liters of blood daily, removing urea, creatinine, and excess minerals while conserving essential nutrients.

Red Bio Path Labs in Patna performs KFT testing with precision chemistry analyzers, providing results that nephrologists and general physicians use to diagnose and monitor kidney disease.

Why is a KFT Done?

Doctors order KFT panels for many clinical scenarios:

• Diabetes and hypertension monitoring — leading causes of chronic kidney disease (CKD)
• Suspected kidney disease — swelling, changes in urination, fatigue, or foamy urine
• Medication monitoring — NSAIDs, certain antibiotics, and contrast dyes affect kidney function
• Pre-surgical evaluation — assessing renal fitness before procedures
• Dehydration or electrolyte imbalance — sodium, potassium, and chloride levels
• Annual health checkups — especially for patients over 40 or with metabolic risk factors

Preparation Instructions

1. Fasting is not mandatory for a basic KFT, but may be required if combined with other tests
2. Stay well hydrated — dehydration can artificially elevate creatinine and BUN
3. Avoid excessive protein intake the day before testing if your doctor advises
4. Inform the lab about medications, especially diuretics, ACE inhibitors, and metformin
5. For accurate electrolyte readings, avoid heavy exercise before the blood draw

Parameters Included

Our KFT panel provides a comprehensive assessment of renal function and electrolyte status, enabling early detection of kidney impairment.

Understanding Your Results

Elevated creatinine and BUN suggest reduced kidney filtration. Abnormal electrolytes (sodium, potassium, chloride) may indicate dehydration, medication effects, or advanced kidney disease. Low eGFR (estimated glomerular filtration rate) is a key indicator of chronic kidney disease staging.

Normal Ranges (Adults)

| Parameter | Typical Range | |-----------|--------------| | Creatinine (Male) | 0.7 – 1.3 mg/dL | | Creatinine (Female) | 0.6 – 1.1 mg/dL | | BUN (Urea) | 7 – 20 mg/dL | | Uric Acid | 3.5 – 7.2 mg/dL | | Sodium | 136 – 145 mEq/L | | Potassium | 3.5 – 5.0 mEq/L | | Chloride | 98 – 106 mEq/L | | eGFR | > 90 mL/min (normal) |

Your doctor will interpret results based on age, muscle mass, hydration status, and medical history.

Book KFT in Patna

Red Bio Path Labs offers reliable kidney function testing with same-day reporting. Walk in or book home collection anywhere in Patna.