What is Proteinuria and Why is it Concerning?
Proteinuria means the presence of excess protein in the urine. Normally, the kidneys act as precise filters — they allow waste products and excess fluids to pass into urine while retaining essential proteins (especially albumin) in the bloodstream. When the kidney's filtration barrier is damaged or diseased, it loses its ability to hold back proteins, allowing them to leak into the urine.
Even small amounts of protein in urine (called microalbuminuria — less than 300mg per day) are significant because they indicate that kidney damage has begun. Large amounts of protein loss (macroalbuminuria or nephrotic-range proteinuria — above 3.5g per day) cause severe complications including massive swelling, low blood protein levels, high cholesterol, and increased clotting risk.
Dr. Swaranjeet Kaur, the leading nephrologist in Bathinda, evaluates proteinuria with a comprehensive approach to identify its exact cause and institute the most effective treatment to protect your kidneys.
Types of Proteinuria
Microalbuminuria
30–300 mg albumin/day. Earliest sign of kidney damage, especially in diabetes. Highly treatable at this stage.
Macroalbuminuria
Above 300 mg albumin/day. Significant kidney damage. Requires active treatment and close monitoring.
Nephrotic-Range
Above 3.5g protein/day. Causes swelling, low albumin, high cholesterol. Needs urgent specialist care.
Transient Proteinuria
Temporary — due to fever, exercise, dehydration, or orthostatic causes. Usually resolves on its own.
Common Causes of Proteinuria
- Diabetic nephropathy — Most common cause; high blood sugar damages kidney filters
- High blood pressure — Hypertensive nephropathy damages glomeruli over time
- IgA nephropathy — Immune deposits in kidneys; common in younger patients
- Nephrotic syndrome — Minimal change disease, focal segmental glomerulosclerosis (FSGS), membranous nephropathy
- Lupus nephritis — Autoimmune kidney disease in SLE patients
- Preeclampsia — Protein in urine during pregnancy; requires urgent care
- Urinary tract infections — Can temporarily cause protein in urine
- Multiple myeloma — Cancer producing abnormal proteins filtered by kidneys
Symptoms of Significant Proteinuria
- Foamy, frothy, or bubbly urine (the protein creates foam like soap)
- Swelling around eyes (periorbital oedema) — often first noticed in the morning
- Swelling in feet, ankles, legs, and abdomen (ascites in severe cases)
- Fatigue and weakness
- Loss of appetite
- High blood pressure
How Proteinuria is Measured and Diagnosed
| Test | What It Measures | Significance |
|---|---|---|
| Urine dipstick | Qualitative protein detection | Quick screening; positive result needs confirmation |
| Spot urine ACR | Albumin-creatinine ratio | Best routine test; <30 normal, 30-300 microalbuminuria, >300 macroalbuminuria |
| 24-hour urine protein | Total protein excretion per day | Gold standard for measuring severity |
| Urine routine & microscopy | Full urine analysis | Detects blood, casts, cells along with protein |
| Kidney biopsy | Kidney tissue diagnosis | Determines exact type of kidney disease causing proteinuria |
Treatment of Proteinuria in Bathinda
1. Kidney-Protective Medicines
ACE inhibitors and ARBs are the cornerstone of proteinuria treatment regardless of its cause. They reduce the pressure within the kidney's filtration units, significantly reduce protein leakage, and slow CKD progression. Dr. Swaranjeet Kaur carefully selects and doses these medicines based on each patient's kidney function and BP.
2. SGLT2 Inhibitors (New Kidney Protectors)
Medicines like empagliflozin and dapagliflozin, originally developed for diabetes, have been shown in large studies to significantly reduce proteinuria and kidney disease progression even in non-diabetic patients with CKD. Dr. Swaranjeet Kaur evaluates eligible patients for these newer protective treatments.
3. Treating the Underlying Cause
- Strict blood sugar control for diabetic nephropathy
- BP medicines targeting below 130/80 mmHg
- Steroids and immunosuppressants for nephrotic syndrome and glomerulonephritis
- Hydroxychloroquine and immunosuppressants for lupus nephritis
- Urgent delivery in preeclampsia
4. Diet Modifications
Moderate protein restriction (0.6–0.8g/kg/day) reduces the kidney's workload and protein leakage. A low-salt diet (below 2g sodium/day) is essential as excess salt worsens swelling and BP. Adequate caloric intake prevents malnutrition from protein loss.
5. Treating Complications
Diuretics for swelling, cholesterol medicines (statins) for high cholesterol (common in nephrotic syndrome), anticoagulants if clotting risk is high, and iron/erythropoietin for anaemia.
Found Protein in Your Urine Report? Act Now.
Protein in urine is not something to wait and watch. The earlier treatment is started, the better the chances of preserving kidney function. Consult Dr. Swaranjeet Kaur today.
Book Appointment 9056248509