The surgical marking pen: a comparative study.

A study has been undertaken to objectively evaluate the available surgical marking pens. Representative samples were requested from manufacturers of marking pens. Standardized skin preparations were utilized in accordance with the recommendation of the manufacturer of the skin-preparation substance (Betadine, pHisoHex, Hibiclens). Evaluation of the marking pens was done by the ability to make an easily discernible mark and maintain this ability over a 1-year storage interval. Objective evaluation demonstrated a marked variation in effectiveness of the marking pens. Consideration of skin-preparation solutions and types of marking pens are discussed.