From Quest Diagnostics, Tucker, GA 30084.
The letter by Hefler and colleagues (1) on the butterfly collection device for venipuncture was quite interesting, and the results were not surprising. I would like to know, however, the outcome of the testing of each specimen. Were there more problem specimens (hemolysis, insufficient quantity) in the butterfly cohort than in the conventional needle group? The goal of good venipuncture technique is not only patient comfort but also the collection of optimal blood specimens. If use of the butterfly device results in more problem specimens, then the reduction in discomfort is a false gain.