Kidney Function & Routine Nephrology Tests in Chandigarh — Complete Guide
Why Regular Kidney Testing Matters More Than Most People Realize
Kidney disease develops silently. In fact, most people lose over 50 percent of their kidney function before any symptom appears. This is exactly why doctors recommend routine kidney testing for anyone with diabetes, high blood pressure, a family history of kidney disease, or simply as part of a preventive annual checkup.
At Altus Lab Chandigarh, our nephrology panel covers everything from basic screening to detailed monitoring for patients already managing chronic kidney disease. Every test is supervised by Dr. Alok Gupta, MD Pathology, Ex-PGIMER Chandigarh, and home sample collection is available across Chandigarh, Mohali, and Panchkula, with pan-India collection for select specialised tests.
Below, we explain all 16 routine and monitoring tests in our nephrology panel, what each one detects, and who should consider getting tested.
Kidney Function Test (KFT) – Complete
The Kidney Function Test, commonly called KFT, is the single most important screening panel for kidney health. It combines several individual markers, including creatinine, urea, uric acid, and electrolytes, into one comprehensive report. Consequently, your doctor gets a complete snapshot of how well your kidneys filter waste from the blood, all from a single sample.
Doctors recommend this test for anyone over 40, anyone with diabetes or hypertension, and anyone experiencing symptoms like fatigue, swelling in the legs, or changes in urination. Furthermore, KFT is a standard part of pre-surgical evaluation, since kidney function directly affects how safely your body processes anaesthesia and medication.
At Altus Lab, results are typically ready within 24 hours. Because this test requires no special preparation beyond a routine blood draw, it remains one of the easiest and most valuable tests you can add to your annual health checkup.
Serum Creatinine & eGFR
Serum Creatinine measures a waste product produced by your muscles and filtered out by your kidneys. When kidney function declines, creatinine builds up in the blood, making this one of the earliest and most reliable indicators of reduced kidney performance.
The eGFR, or estimated Glomerular Filtration Rate, takes your creatinine level and combines it with your age, sex, and sometimes race, to calculate exactly how efficiently your kidneys filter blood. Doctors use eGFR to stage chronic kidney disease, ranging from mild reduction in Stage 1 to kidney failure in Stage 5.
This combination test is essential for anyone with diabetes, since diabetic kidney disease is a leading cause of kidney failure in India. Similarly, patients on certain long-term medications need regular eGFR monitoring to ensure their kidneys can safely process these drugs. Altus Lab reports both values together, giving your doctor immediate clarity on your current kidney health without needing to order separate tests.
Blood Urea Nitrogen (BUN) & BUN:Creatinine Ratio
Blood Urea Nitrogen measures urea, another waste product filtered by the kidneys. While BUN alone can be affected by diet, hydration, and other non-kidney factors, the BUN to Creatinine Ratio gives doctors a much more precise picture of what is actually happening inside your kidneys.
A high ratio often points toward dehydration or reduced blood flow to the kidneys, a condition called pre-renal azotemia. A low ratio, on the other hand, can indicate liver disease or malnutrition. Therefore, doctors rarely look at BUN in isolation, since the ratio provides far more diagnostic value.
This test is particularly useful for hospitalised patients, those recovering from surgery, and anyone showing signs of acute kidney injury. At Altus Lab, we process BUN and creatinine together, so your report always includes the calculated ratio, saving you the need for a follow-up test and giving your doctor a complete picture immediately.
Urine Microalbumin (Spot & 24h)
Urine Microalbumin detects tiny amounts of albumin, a protein that should not normally leak into urine. When the kidneys’ filtering units become damaged, even slightly, albumin begins to appear in the urine long before creatinine or eGFR show any change. This makes microalbumin testing the earliest possible warning sign of kidney damage.
Diabetic patients should test their urine microalbumin at least once a year, since diabetic kidney disease often begins exactly this way, silently and without symptoms. Altus Lab offers both a quick spot test, ideal for routine screening, and a more detailed 24-hour urine collection for patients who need precise quantification.
Catching microalbuminuria early genuinely changes outcomes. With the right treatment, including blood pressure control and specific medications, many patients can slow or even reverse early kidney damage. This is precisely why annual microalbumin testing matters so much for anyone with diabetes or hypertension.
Urine Protein:Creatinine Ratio (UPCR)
The Urine Protein-to-Creatinine Ratio estimates how much protein your kidneys lose in urine over a 24-hour period, using a single spot urine sample. This makes UPCR far more convenient than a full 24-hour collection, while still providing clinically reliable results for most patients.
Doctors order this test when microalbumin screening shows abnormal results, or when a patient already has diagnosed kidney disease and needs ongoing monitoring. A rising UPCR often signals worsening kidney function, while a falling ratio suggests treatment is working effectively.
This test is especially valuable for patients with conditions like nephrotic syndrome, glomerulonephritis, or lupus nephritis, where protein loss is a key marker doctors track over time. At Altus Lab, UPCR results are available quickly, allowing your nephrologist to adjust treatment decisions without unnecessary delay between your test and your consultation.
24-Hour Urine Protein
While UPCR offers convenience, the 24-Hour Urine Protein test remains the gold standard for measuring exactly how much protein your kidneys lose in a full day. This involves collecting all urine passed over 24 hours, which your doctor then uses to calculate total protein output with maximum accuracy.
This test matters most for patients with significant kidney disease, particularly nephrotic syndrome, where protein loss can exceed 3.5 grams per day. Additionally, doctors often request this test before starting certain treatments, and again periodically afterward, to objectively measure whether therapy is reducing protein loss.
We understand that 24-hour collection can feel inconvenient. Consequently, our team at Altus Lab provides clear, simple instructions along with the collection container, and our home collection service can pick up your completed sample directly from your home, removing the need for an extra trip to the lab.
Cystatin C (Serum)
Cystatin C is an alternative marker for kidney function that offers a distinct advantage over creatinine: it is not affected by muscle mass, age, or diet. This makes Cystatin C particularly valuable for elderly patients, people with very low or very high muscle mass, and anyone whose creatinine results seem inconsistent with their clinical picture.
Doctors increasingly use Cystatin C alongside creatinine to calculate a combined eGFR, which research shows is often more accurate than creatinine-based eGFR alone. This matters most in the early stages of kidney disease, where precise staging directly influences treatment decisions.
At Altus Lab, Cystatin C testing gives your nephrologist an additional layer of confidence, especially in tricky cases where standard creatinine testing may not tell the full story. If your doctor has raised concerns about the accuracy of your creatinine results, this test often provides the clarity needed to move forward.
Beta-2 Microglobulin (Serum & Urine)
Beta-2 Microglobulin is a small protein on the surface of most cells in the body, and healthy kidneys normally filter and reabsorb it efficiently. When kidney function declines, this protein accumulates in the blood, making serum Beta-2 Microglobulin a sensitive marker for reduced filtration.
Interestingly, urine Beta-2 Microglobulin tells a different story. Elevated levels here point toward damage in the kidney tubules specifically, rather than the filtering units, helping doctors distinguish between different types of kidney injury. This distinction genuinely matters, since tubular and glomerular damage often require different treatment approaches.
This test also helps monitor certain blood cancers and autoimmune conditions that can affect the kidneys indirectly. At Altus Lab, we offer both serum and urine Beta-2 Microglobulin, giving your nephrologist the complete picture needed for accurate diagnosis and ongoing monitoring.
Urine Routine & Microscopy
Urine Routine and Microscopy remains one of the most informative yet simplest tests in nephrology. This test examines your urine’s physical appearance, chemical composition, and microscopic content, revealing signs of infection, blood, protein, crystals, and abnormal cells, all from a single sample.
Doctors often order this test as a first step when kidney disease is suspected, since abnormal findings often guide which follow-up tests to order next. For example, red blood cells in the urine might prompt further investigation for glomerulonephritis, while white blood cells suggest a possible urinary tract infection.
Because this test is quick, affordable, and requires no special preparation, it forms the foundation of nearly every kidney workup. At Altus Lab, our microscopy is performed by trained technicians under pathologist supervision, ensuring findings like casts and crystals, which require real expertise to identify correctly, are never missed.
Urine Culture & Sensitivity
Urine Culture and Sensitivity identifies exactly which bacteria are causing a urinary tract infection, and just as importantly, which antibiotics will actually work against that specific bacteria. This distinguishes it from a basic urine routine test, which can only suggest that an infection might be present.
Doctors order this test whenever symptoms like burning urination, frequent urges to urinate, or lower back pain suggest a possible infection, and especially for recurrent infections that have not responded to previous treatment. Without culture and sensitivity results, doctors are essentially guessing which antibiotic to prescribe, which risks both treatment failure and antibiotic resistance.
This test takes slightly longer than routine urine testing, typically 48 to 72 hours, since bacteria need time to grow in the laboratory. At Altus Lab, we follow strict sample collection protocols to prevent contamination, ensuring your culture results accurately reflect what is actually happening in your urinary tract.
Serum Electrolytes (Na, K, Cl, HCO3)
Serum Electrolytes measure sodium, potassium, chloride, and bicarbonate, four minerals your kidneys work constantly to keep in careful balance. Because kidneys play the central role in regulating electrolyte levels, abnormalities here often signal kidney dysfunction, sometimes before other markers show any change at all.
Potassium deserves particular attention, since both very high and very low levels can affect heart rhythm dangerously. Patients with chronic kidney disease frequently develop elevated potassium, making regular monitoring essential, especially for those on certain blood pressure medications that further raise potassium levels.
Bicarbonate, meanwhile, reflects your body’s acid-base balance, which kidneys help regulate continuously. Declining kidney function often leads to metabolic acidosis, detectable through low bicarbonate levels. At Altus Lab, electrolyte panels are processed rapidly, since abnormal results sometimes require urgent clinical attention rather than routine follow-up.
Serum Calcium, Phosphorus & PTH
Calcium and Phosphorus work in careful balance within the body, and healthy kidneys play a central role in maintaining that balance. When kidney function declines, phosphorus tends to rise while calcium often falls, triggering a cascade of hormonal changes that can weaken bones over time.
This test is especially important for patients with chronic kidney disease, since mineral bone disorder is one of the most common, yet often overlooked, complications of declining kidney function. Left unmonitored, this imbalance can lead to bone pain, fractures, and even calcification in blood vessels.
Doctors typically order calcium and phosphorus alongside Parathyroid Hormone testing, since all three markers interact closely with one another. At Altus Lab, we report calcium, phosphorus, and PTH together whenever possible, giving your nephrologist a complete view of your bone and mineral health in a single consultation.
Parathyroid Hormone (PTH – Intact)
The Parathyroid Hormone, or PTH, test measures a hormone that regulates calcium and phosphorus levels throughout the body. In healthy individuals, PTH rises and falls as needed to keep calcium stable. However, in chronic kidney disease, PTH often rises persistently, a condition called secondary hyperparathyroidism.
This happens because failing kidneys struggle to activate Vitamin D and excrete phosphorus properly, prompting the parathyroid glands to work overtime in a largely unsuccessful attempt to correct the imbalance. Over months and years, this persistently elevated PTH can weaken bones and contribute to cardiovascular complications.
Nephrologists typically begin monitoring PTH once a patient reaches Stage 3 chronic kidney disease, adjusting treatment based on trends over time rather than a single reading. At Altus Lab, we use the intact PTH assay, which is considered the most clinically reliable method for tracking this hormone accurately.
Vitamin B12
Vitamin B12 deficiency is common among patients with chronic kidney disease, partly due to dietary restrictions and partly because kidney disease itself can affect how the body absorbs and processes this essential vitamin. Left unaddressed, deficiency can cause fatigue, nerve damage, and a specific type of anaemia.
Beyond kidney patients, Vitamin B12 testing matters broadly across India, since vegetarian diets, extremely common nationwide, naturally provide less B12 than diets containing animal products. Consequently, doctors often recommend baseline B12 testing as part of any comprehensive health checkup, not only for those with kidney concerns.
For nephrology patients specifically, correcting B12 deficiency can meaningfully improve energy levels and reduce anaemia-related complications, which are already common in chronic kidney disease. At Altus Lab, Vitamin B12 testing requires only a simple blood draw, with no special preparation needed, making it an easy addition to your existing test panel.
Vitamin D3
Vitamin D3 deficiency affects a striking proportion of the Indian population, despite abundant year-round sunshine, largely due to modern indoor lifestyles and limited sun exposure. For kidney patients, this deficiency carries added significance, since healthy kidneys are responsible for converting Vitamin D into its active form.
As kidney function declines, this activation process becomes impaired, contributing directly to the bone and mineral problems we discussed alongside calcium, phosphorus, and PTH testing. Consequently, Vitamin D3 testing forms an essential part of any complete nephrology workup, not simply a general wellness test.
Correcting Vitamin D deficiency, whether through supplementation or in some cases specific active Vitamin D medications for kidney patients, can meaningfully improve bone health and may even support better calcium and phosphorus balance. At Altus Lab, Vitamin D3 testing is available as a standalone test or bundled with our complete nephrology panel.
Zinc
Zinc deficiency often goes unrecognised, yet it plays several important roles relevant to kidney health, including immune function, wound healing, and taste perception. Chronic kidney disease patients frequently develop zinc deficiency, partly due to dietary restrictions and partly because dialysis, when required, can remove zinc from the body.
Deficiency symptoms can be subtle, ranging from reduced appetite and altered taste to slower wound healing and increased susceptibility to infections. Because these symptoms overlap with general kidney disease symptoms, zinc deficiency frequently goes undiagnosed unless specifically tested for.
While not part of every routine nephrology panel, zinc testing becomes particularly relevant for patients with unexplained appetite loss, poor wound healing, or those on long-term dialysis. At Altus Lab, zinc testing is a simple addition to your existing blood panel, offering valuable insight for patients whose symptoms are not fully explained by other results.
How to Book Your Nephrology Panel at Altus Lab
Booking any of these tests, individually or as a complete nephrology panel, takes just a few minutes. Call or WhatsApp our team to discuss which tests your doctor has recommended, or if you are unsure, share your prescription directly and we will confirm the right panel for you.
📞 Call: 0172-5017001 / 0172-5017002
💬 WhatsApp: +91-62842-14977
📍 SCO 35, Sector 16-D, Chandigarh
🕐 Open 7 Days: 7:30 AM – 9:30 PM
Home sample collection is available across Chandigarh, Mohali, and Panchkula, with select specialised tests also available through pan-India home collection.
Frequently Asked Questions
1. What is included in a Complete Kidney Function Test (KFT)?
A complete KFT typically includes creatinine, eGFR, blood urea nitrogen, uric acid, and electrolytes, giving your doctor a comprehensive overview of kidney function from a single blood sample.
2. How often should I get my kidneys tested?
Healthy adults should consider annual testing after age 40. However, anyone with diabetes, high blood pressure, or a family history of kidney disease should test at least once a year, or as frequently as their doctor recommends.
3. Does urine microalbumin testing require fasting?
No fasting is required for urine microalbumin testing. However, it is best collected as a first-morning sample for the most accurate results.
4. What is a normal eGFR value?
An eGFR above 90 is generally considered normal. Values between 60 and 89 may indicate mild reduction, while values below 60, sustained over three months, suggest chronic kidney disease.
5. Why do I need both serum and urine Beta-2 Microglobulin?
Serum levels indicate overall filtration function, while urine levels help identify specific tubular damage, giving your doctor a more complete diagnostic picture together.
6. Can Vitamin D and B12 deficiency really affect kidney patients?
Yes. Kidney disease directly impairs Vitamin D activation and increases the risk of B12 deficiency, making both tests clinically relevant, not just general wellness checks.
7. How is 24-hour urine protein different from UPCR?
UPCR uses a single spot sample and estimates daily protein loss, while 24-hour urine protein directly measures total protein from a full day’s collection, offering the highest accuracy.
8. Is home collection available for all nephrology tests?
Most tests are available through home collection across Chandigarh, Mohali, and Panchkula. Call our team to confirm availability for your specific test requirements.