In a fastener driving tool, a carrier for holding a plurality of fasteners comprises a plurality of sleeves, each sleeve holding an associated fastener. The applicants demonstrate the ability of a biomembrane sealing agent to accumulate on the walls of damaged blood vessels and help improving mean arterial pressure following tissue injury. The low power consumption LED provides lengthy continuous use of the light with a tiny watch battery. The pH of the first solution may range from 3 to 5, and the pH of the second solution range from 3 to 7, preferably 5 to 7.