Comparison of blot-drying versus air-drying of povidone-iodine-cleansed skin

Povidone-iodine is the cleansing agent most commonly used before accessing implanted venous devices. This agent has peak bacteriocidal action when allowed to air-dry for 20 min postscrub. However, the drying time increases the length of the procedure and the risk for accidental contamination of the site. In this study, the effectiveness of air drying versus blot drying povidone-iodine-prepared skin sites was compared by examining the number of bacterial colonies present on skin cultures obtained after each drying method. No significant differences in the number of bacterial colonies between the two drying methods were found.