Research Article

Pycnogenol® Supplementation Prevents Recurrent Urinary Tract Infections/Inflammation and Interstitial Cystitis

Table 1

Upper limits for defining biochemically “normal” urines according to the guidelines for urinalysis by Simerville et al. [13].

ComponentUpper limitUnit

Red blood cells (RBCs)/erythrocytes2-3Per high power field (HPF)
RBC castsNegative
White blood cells (WBCs)/leukocytesNegative-10Per µl or mm3
HemoglobinNegativeDipstick scale 0 to 4+
Bacterial culture<100,000colony forming units per milliliter (cfu/ml)