title: Painless venipuncture. A clinical trial of iontophoresis of lidocaine for venipuncture in blood donors.
abstract: Discomfort or frank pain at venipuncture may be a reason for abstaining from giving blood. In an attempt to offer a painless alternative, a method for iontophoretic application of local anaesthetics was developed. Its effectiveness in producing anaesthesia for venipuncture was tested in a double-blind trial in 47 blood donors. A positive result was obtained in 89%, as against 28% in the placebo group.
mesh_terms: D000772:Anesthesia, Local / Q000379:methods*; D001782:Blood Donors; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D007478:Iontophoresis; D008012:Lidocaine / Q000008:administration & dosage*; D010146:Pain / Q000209:etiology / Q000517:prevention & control*; D011677:Punctures; D011897:Random Allocation
chemical_list: D008012:Lidocaine