Kidney Function Testing at TEKlaB Laboratory
Your kidneys filter waste, regulate blood pressure, and maintain electrolyte balance. Kidney function tests detect early signs of kidney disease, allowing treatment before permanent damage occurs.
Complete Renal Panel Includes
Serum Creatinine
Primary kidney function marker. Waste product filtered by kidneys. Elevated levels indicate decreased kidney function.
eGFR (Glomerular Filtration Rate)
Calculated kidney filtering capacity. Best overall measure of kidney function. Stages kidney disease severity.
BUN (Blood Urea Nitrogen)
Measures urea nitrogen in blood. Evaluates kidney and liver function. Sensitive to dehydration.
Uric Acid
Detects gout and kidney stone risk. High levels indicate impaired kidney elimination.
Microalbumin (Urine)
Detects early kidney damage in diabetes. Protein leak indicates kidney stress.
Electrolytes Panel
Sodium, potassium, chloride, bicarbonate. Kidney regulates electrolyte balance.
Who Should Get a Kidney Function Test?
- Diabetes patients - Leading cause of kidney disease
- High blood pressure - Second leading cause of kidney disease
- Family history - Kidney disease, diabetes, or hypertension in family
- Age 60+ - Routine screening recommended
- Cardiovascular disease - Heart and kidney health are connected
- Medication use - NSAIDs, certain antibiotics, diabetes medications
- Urinary symptoms - Frequent urination, blood in urine, foamy urine
- Swelling - Edema in legs, ankles, or around eyes
Warning Signs of Kidney Problems
- Changes in urination (frequency, color, foaming)
- Swelling in legs, ankles, feet, or face
- Persistent fatigue or weakness
- Loss of appetite, nausea, or metallic taste
- Difficulty concentrating or confusion
- High blood pressure that's hard to control
Preparation for Kidney Function Test
- Fasting: 8-12 hours required (water allowed)
- Hydration: Drink normal amounts of water day before (not excessive)
- Medications: Continue prescribed medications unless advised otherwise
- Avoid: High-protein meals 24 hours before test
- Inform us: All medications, supplements, and medical conditions
Understanding Your Results - eGFR Stages
| Stage | eGFR (mL/min) | Kidney Function |
|---|---|---|
| Stage 1 | ≥90 | Normal or high |
| Stage 2 | 60-89 | Mildly decreased |
| Stage 3a | 45-59 | Mild to moderate decrease |
| Stage 3b | 30-44 | Moderate to severe decrease |
| Stage 4 | 15-29 | Severe decrease |
| Stage 5 | <15 | Kidney failure |
Normal Reference Ranges
| Test | Normal Range |
|---|---|
| Creatinine (Men) | 0.7-1.3 mg/dL |
| Creatinine (Women) | 0.6-1.1 mg/dL |
| BUN | 7-20 mg/dL |
| Uric Acid (Men) | 3.5-7.2 mg/dL |
| Uric Acid (Women) | 2.6-6.0 mg/dL |
Hours
- Mon-Fri07:30-19:00
- Saturday08:30-17:00
- Sunday09:00-14:00
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