Understanding Creatinine and Kidney Function
Our kidneys are like natural filters – they clean the blood, remove waste products, and maintain the right balance of water and salts in our body. One such waste product is creatinine, which is produced when our muscles use energy. Normally, healthy kidneys remove creatinine from the blood and pass it out through urine.
When creatinine levels are higher than normal in a blood test, it can be a sign that the kidneys are not working properly. This condition is sometimes temporary (Acute Kidney Injury), but in many cases, it can point to a more serious issue like Chronic Kidney Disease (CKD).
What Are Raised Creatinine Levels?
A high creatinine level in the blood simply means that the kidneys are not removing it efficiently. This could happen due to dehydration, certain medications, infections, or more chronic conditions such as CKD.
For adults, the normal range for creatinine is approximately:
- Men: 0.7 to 1.3 mg/dL
- Women: 0.6 to 1.1 mg/dL
However, for children, the values vary based on age, size, and muscle mass. That’s where Paediatric Nephrologists like me, Dr. Punit Chhajed, come in – to help children with kidney issues receive the right diagnosis and treatment.
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What is Chronic Kidney Disease (CKD)?
Chronic Kidney Disease means the kidneys are gradually losing their function over time. CKD doesn’t happen overnight. It’s a slow process that often begins without any obvious symptoms.
By the time symptoms become noticeable, kidney function may already be significantly reduced. CKD can affect people of all ages – including children – though the causes and symptoms may vary depending on age.
Common Causes of Raised Creatinine / CKD
In children, some common causes of CKD include:
- Birth defects of the kidneys or urinary tract (CAKUT)
- Genetic or inherited conditions (like polycystic kidney disease)
- Nephrotic syndrome
- Infections that damage the kidneys
- Autoimmune disorders (like lupus nephritis)
- Long-term effects of untreated high blood pressure or diabetes (more common in older children)
Symptoms to Watch Out For
Unfortunately, early CKD usually has no symptoms. That’s why regular health checkups are so important, especially for children with a history of urinary issues, high blood pressure, or other risk factors.
As kidney function worsens, some signs you may notice are:
- Swelling in the face, hands, or feet
- Tiredness and weakness
- Disturbances in sleep, concentration & attention
- Pale skin or low hemoglobin not improving with iron supplements
- Poor appetite, early satiety or vomiting
- Changes in urine – less output, dark color, or foamy urine
- High blood pressure presenting as frequent headaches, giddiness etc
- Difficulty growing in children
- Bone pains or bony deformities
If you notice any of these symptoms, consult a kidney specialist or paediatric nephrologist without delay.
How is CKD Diagnosed?
At our clinic in Pune, we use a combination of blood and urine tests, along with imaging studies and sometimes even kidney biopsies to confirm a diagnosis.
Key tests include:
- Serum Creatinine: Measures creatinine level in the blood.
- eGFR (Estimated Glomerular Filtration Rate): Indicates how well the kidneys are filtering blood.
- Urine Protein Test: Checks for protein in urine, which may suggest kidney damage.
- Ultrasound of Kidneys: Shows the structure and size of the kidneys.
- Blood Pressure Measurement: High BP can both cause and result from kidney issues.
- Other tests to check downstream effects of reduced kidney function
For children, the approach is slightly different as the causes and expected creatinine levels differ from those in adults.
Is Raised Creatinine Always Dangerous?
Not necessarily. Sometimes, temporary conditions like dehydration, fever, or certain medications can cause a rise in creatinine levels. Once the underlying issue is treated, creatinine levels may return to normal.
However, persistently raised creatinine is a red flag and must be evaluated thoroughly.
Managing Chronic Kidney Disease
There is no single cure for CKD, but with the right care, its progression can be slowed, and quality of life can be maintained. At our paediatric nephrology clinic in Pune, we follow a comprehensive and individualized treatment planfor each child.
Treatment may include:
- Dietary changes – low salt and adequate calorie & protein consumption to fuel growth
- Medications – to control BP, maintain acid-base or electrolyte balance, reduce protein in urine, and manage anemia or bone health
- Monitoring growth and development in children
- Infection prevention through timely vaccinations and hygiene care
- Psychological and social support for children and families
In advanced stages, dialysis or kidney transplant may be needed.
Importance of Early Detection
Early diagnosis and proper care can significantly delay or even prevent serious kidney damage. For this reason, we recommend regular screening for children who:
- Have a family history of kidney problems
- Were born prematurely
- Have urinary tract infections (UTIs) frequently
- Have other chronic health conditions which might predispose them to developing CKD
- Abnormalities in urine production – less or more
- Swelling noted in any part of the body
As a Paediatric Nephrologist, I strongly advocate routine check-ups, especially when there’s any doubt about your child’s kidney health.
Living with CKD – For Parents and Children
Learning that your child has a kidney condition can be overwhelming. But remember, you are not alone. With the right support, children with CKD can lead active, fulfilling lives. As a parent, your involvement in managing medications, attending follow-ups, and ensuring a kidney-friendly lifestyle makes a huge difference.
At our clinic, we work closely with families to educate, guide, and empower them through every stage of the journey.
When to See a Paediatric Nephrologist
If your child shows any of the following, it’s time to consult a specialist:
- Persistent swelling or puffiness
- Recurrent urinary issues or unusual urine color
- High blood pressure
- Poor growth or frequent fatigue
- Raised creatinine levels in blood reports
Don’t wait for symptoms to get worse. Early action leads to better outcomes.
Dr. Punit Chhajed- Consultant Paediatric Nephrologist, Pune
With almost a decade of experience in managing kidney-related problems in children, Dr. Punit Chhajed is one of Pune’s leading Paediatric Nephrologists. His approach combines evidence-based medicine with compassionate care, ensuring that both children and their families feel supported throughout their treatment journey.
From mild kidney function issues to complex conditions requiring dialysis or transplant support, Dr. Chhajed and his team offer comprehensive care under one roof.
