9 Warning Signs Your Kidneys Are Failing | Tests to Avoid Dialysis

Test What It Checks Why It Helps Avoid Dialysis Normal Range
eGFR (Blood) Filtration rate via creatinine Spots decline early; <60 flags stage 3 CKD >90 mL/min
uACR (Urine) Protein leak (albumin) Catches damage before function drops; <30 mg/g ideal <30 mg/g
Urinalysis Blood, protein, infection Detects foam/blood causes; quick office dip No protein/blood
Serum Creatinine Waste buildup Tracks progression; rising levels prompt action 0.6-1.2 mg/dL
Electrolytes (Blood) Potassium, phosphorus balance Prevents cramps/itch; imbalances signal urgency Varies by mineral
These aren’t invasive—blood draws and pee cups, done annually. eGFR and uACR duo detects 90% of early cases. You might think, “I’m fine—why bother?” One test changed retiree Maria’s path: uACR at 45 led to BP meds, staving off stage 4 for years.