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Kidney Function Tests: Understanding Your Creatinine And Urea Levels

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By Author: Diagnopein
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What is a Kidney Function Test (KFT Test)?
A Kidney Function Test (KFT test) is a blood test that helps evaluate how well your kidneys are working. It measures key markers like:

1] Creatinine – A waste product generated by muscle metabolism.
2] Urea (Blood Urea Nitrogen - BUN) – A byproduct of protein breakdown in the liver.
3] Electrolytes – Including sodium, potassium, and chloride, which help maintain fluid balance.
4] Glomerular Filtration Rate (GFR) – An estimate of how efficiently your kidneys filter waste.

These tests are crucial in detecting kidney disease, monitoring existing conditions, and assessing the impact of medications on kidney function.

Understanding Creatinine and Urea Levels
1. Creatinine Levels
Creatinine is a waste product produced by muscles and eliminated through the kidneys. When kidneys are not functioning properly, creatinine levels rise in the blood.

Normal Creatinine Levels:

Men: 0.7 to 1.3 mg/dL
Women: 0.6 to 1.1 mg/dL
Children: 0.2 to 1.0 mg/dL
High Creatinine Levels May Indicate:

Kidney disease ...
... or kidney failure
Dehydration
Muscle disorders
Excessive protein intake
Low Creatinine Levels May Indicate:

Muscle loss
Liver disease
Malnutrition
2. Urea (Blood Urea Nitrogen - BUN) Levels
Urea is produced when the liver breaks down proteins from food. It is filtered by the kidneys and eliminated through urine.

Normal Urea Levels:

Adults: 6 to 24 mg/dL
Children: 5 to 20 mg/dL
High Urea Levels May Indicate:

Kidney dysfunction or failure
High protein diet
Dehydration
Heart failure
Low Urea Levels May Indicate:

Malnutrition
Liver disease
Overhydration
Since both creatinine and urea are filtered by the kidneys, their levels in the blood provide a clear picture of kidney function. Regular KFT tests at a pathology lab centre in Pune can help detect abnormalities early.

Why Should You Get a KFT Test?
If you have risk factors for kidney disease or symptoms of kidney dysfunction, it’s essential to get a KFT test done. Here’s why:

1. Early Detection of Kidney Disease
Chronic kidney disease (CKD) develops gradually and may not show symptoms in the early stages. A KFT test can detect changes in creatinine and urea levels before symptoms appear, allowing for early intervention.

2. Monitoring Existing Kidney Conditions
People with diabetes, high blood pressure, or a family history of kidney disease should get regular KFT tests to monitor kidney health and prevent complications.

3. Evaluating Medication Effects
Certain medications, such as painkillers and antibiotics, can affect kidney function. Regular KFT tests help assess whether these drugs are causing any harm to your kidneys.

4. Assessing Hydration and Protein Intake
A KFT test can also help determine if you are consuming too much or too little protein, and whether you are adequately hydrated.

How to Get a KFT Test in Pune?
Getting a KFT test is simple and requires a visit to a reliable best pathology lab centre Pune. Here’s how you can get tested:

1] Find a Reputable Lab – Search for a pathology lab centre in Pune that offers kidney function tests with high accuracy.
2] Schedule an Appointment – Many labs offer online booking or home sample collection for convenience.
3] Get Your Blood Sample Collected – A small blood sample will be drawn for analysis.
4] Receive Your Results – Results are usually available within 24-48 hours, and a doctor can help interpret them.

Preventing Kidney Disease: Tips for Healthy Kidneys
Maintaining kidney health is crucial for overall well-being. Here are some lifestyle tips to protect your kidneys:

✔ Stay Hydrated – Drink plenty of water to help flush out toxins.
✔ Eat a Balanced Diet – Reduce salt, processed foods, and excessive protein intake.
✔ Exercise Regularly – Maintain a healthy weight to reduce the risk of diabetes and hypertension.
✔ Monitor Blood Pressure & Sugar Levels – High blood pressure and diabetes are leading causes of kidney disease.
✔ Avoid Overuse of Painkillers – Long-term use of NSAIDs (pain relievers) can harm the kidneys.
✔ Get Regular Check-ups – A KFT test at a pathology lab centre in Pune can help detect issues early.

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