RBC; urine

Alternative names:

hematuria test; red blood cells in urine

Normal values:

Less than or equal to 2 RBC/mm3

RBC/mm3 = red blood cells per cubic millimeter

What abnormal results mean:

Greater-than-normal number of red blood cells in the urine may indicate:

• glomerulonephritis
• interstitial nephritis
• acute tubular necrosis
• pyelonephritis
• renal trauma
• renal tumor
• renal stones
• cystitis
• prostatitis

Additional conditions under which the test may be performed:

• Alport syndrome
• complicated UTI (pyelonephritis)
• membranoproliferative GN II
• renal vein thrombosis