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- KIDNEY CARE, KIDNEY STONES, NEPHROLOGY
How Nephrologists Diagnose and Treat Chronic Kidney Disease Chronic kidney disease, commonly called CKD, is a long-term condition in which the kidneys become damaged or their ability to filter blood decreases over time. The condition can affect people of different ages and may develop because of diabetes, high blood pressure, inherited kidney disorders, autoimmune diseases, repeated kidney injury, and other medical conditions. One of the biggest challenges with CKD is that it can develop quietly. Many people do not experience clear symptoms during the early stages. Blood and urine tests may identify kidney damage before a person feels unwell. This is where a nephrologist plays an important role. A nephrologist is a doctor who specializes in kidney diseases. Nephrologists do more than treat advanced kidney failure. They investigate why kidney function is changing, assess the severity of kidney disease, manage complications, and create treatment plans designed to protect remaining kidney function. For people searching for the Best Nephrologist in Vijayawada, understanding how CKD is diagnosed and treated can help them recognize the importance of timely kidney care. What Is Chronic Kidney Disease? Chronic kidney disease means there is an abnormality in kidney structure or function that persists for at least three months. Healthy kidneys continuously filter the blood. They remove waste products and excess fluid through urine while helping regulate electrolytes, acid-base balance, blood pressure, and other important body functions. When kidney function becomes reduced, waste products and excess substances may gradually accumulate in the body. CKD can also lead to complications involving blood pressure, anemia, bones, minerals, heart health, and nutrition. The condition does not always progress quickly. Some people remain stable for many years, while others experience a faster decline in kidney function. This difference makes regular monitoring important. Why Can Chronic Kidney Disease Go Unnoticed? Early CKD often does not produce obvious symptoms. A person may have an abnormal kidney test while continuing to work, eat, exercise, and carry out normal daily activities. Symptoms may become more noticeable as kidney function declines. These can include swelling, tiredness, nausea, poor appetite, changes in urination, itching, muscle cramps, or shortness of breath. However, symptoms alone cannot determine whether someone has CKD. Testing is important because blood and urine tests can identify kidney damage or reduced filtration before serious symptoms develop. Who Is at Higher Risk of CKD? Certain health conditions increase the risk of developing kidney disease. People who may need regular kidney evaluation include those with: Diabetes, particularly when blood glucose has been difficult to control over time. High blood pressure, especially when it remains uncontrolled or requires multiple medicines. Heart disease or other cardiovascular conditions associated with increased kidney risk. A family history of kidney failure or certain inherited kidney diseases. Previous episodes of acute kidney injury or repeated kidney-related problems. Conditions such as autoimmune diseases that can affect the kidney’s filtering structures. NIDDK identifies diabetes, hypertension, cardiovascular disease, and family history of kidney failure among important CKD risk factors. When Should You See a Nephrologist? You may need nephrology evaluation when kidney tests are repeatedly abnormal or when kidney function is changing. Common reasons include: Persistently elevated creatinine or reduced eGFR on blood tests. Protein or albumin repeatedly detected in urine. A rapid or unexplained decline in kidney function. Blood in the urine with other kidney abnormalities. High blood pressure that remains difficult to control. Unexplained swelling or fluid retention. Repeated kidney stones, infections, or other kidney-related problems. Abnormal potassium, calcium, phosphorus, or bicarbonate levels associated with reduced kidney function. Advanced CKD where dialysis or kidney transplantation may eventually need to be considered. Early specialist evaluation does not mean dialysis is immediately required. In many cases, the purpose is to understand the problem early and protect kidney function. How Do Nephrologists Diagnose CKD? Diagnosing CKD involves several pieces of information. A nephrologist may review your medical history, symptoms, previous laboratory reports, medications, blood pressure readings, blood tests, urine tests, and imaging results. The two major markers used to identify and monitor CKD are eGFR and urine albumin. The doctor also needs to determine whether the abnormality is truly chronic. An abnormal test caused by temporary dehydration or an acute illness should not automatically be labeled as chronic kidney disease. Understanding Creatinine Creatinine is a waste product produced through normal muscle metabolism. Healthy kidneys remove creatinine from the blood. When kidney filtration decreases, blood creatinine may increase. However, creatinine is not a perfect measure of kidney function by itself. Muscle mass, age, diet, certain medicines, and other factors can affect creatinine levels. For this reason, nephrologists usually interpret creatinine alongside eGFR and other findings. A single elevated creatinine result does not automatically mean that someone has permanent CKD. What Is eGFR? The estimated glomerular filtration rate, or eGFR, estimates how efficiently the kidneys filter blood. It is calculated using blood-test information and an established estimation equation. A persistently reduced eGFR can indicate chronic kidney disease. NIDDK notes that an eGFR below 60 may indicate kidney disease, while an eGFR of 15 or lower is generally considered the kidney failure range. However, doctors do not make treatment decisions based on eGFR alone. The patient’s symptoms, urine albumin, underlying cause, rate of change, other laboratory findings, age, and overall health also matter. Why Is Urine Testing Important? Blood tests tell doctors about kidney filtration, but urine tests provide different information. One important test is the urine albumin-to-creatinine ratio, or UACR. Albumin is a protein normally found in the blood. Healthy kidneys generally prevent significant amounts of albumin from passing into urine. When the kidney’s filtering barrier is damaged, albumin can leak into urine. Persistent albuminuria can therefore be an important sign of kidney damage. A UACR above 30 mg/g may indicate increased urine albumin, although results need to be interpreted in the clinical context and may be repeated for confirmation. What Other Urine Tests May Be Done? A nephrologist may order a complete urinalysis depending on the patient’s condition. The test can provide information about: Protein: Persistent protein