Description
The Kidney Function Test (KFT) is a vital blood panel that assesses how well your kidneys are filtering waste from your blood. It measures key markers like Creatinine, Urea, and Uric Acid, along with essential electrolytes (Sodium, Potassium), to detect early signs of kidney damage or dehydration
Overview: Your kidneys act as the body’s filter, removing toxins and excess fluid. When they aren’t working correctly, waste products build up in the blood. This panel measures the levels of these waste products to grade your kidney health. The standard KFT panel typically includes:
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Serum Creatinine: The most important marker. It comes from muscle wear and tear. High levels usually mean the kidneys are struggling to filter.
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Blood Urea Nitrogen (BUN) / Urea: A waste product from protein breakdown.
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Uric Acid: High levels can lead to kidney stones or Gout (painful joints).
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Electrolytes (Sodium, Potassium, Chloride): These maintain fluid balance. Note: Abnormal Potassium levels can be dangerous for the heart.
Clinical Significance:
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Chronic Kidney Disease (CKD): Essential for monitoring patients with Diabetes and High Blood Pressure, the two leading causes of kidney failure.
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Kidney Stones: Helps identify the risk factors (like high uric acid) forming stones.
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Dehydration: Urea levels often rise when you are dehydrated.
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Medication Safety: Checks if heavy medication (like painkillers or antibiotics) is affecting kidney function.
When is this test recommended?
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Symptoms: Swelling in the ankles/feet (Edema), puffiness around the eyes, fatigue, or changes in urination frequency.
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Risk Factors: If you have diabetes, hypertension, or a family history of kidney issues.
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Post-Infection: After severe infections or dehydration to ensure kidneys have recovered.
Sample Requirements:
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Specimen: Serum (Blood).
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Container: Gold Top (SST) or Red Top Tube.
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Preparation: Fasting (8-10 hours) is preferred for the most accurate Uric Acid and Urea results, though random samples can be used for Creatinine screening.
