Final answer:
If a patient is allergic to alcohol, an alternative antiseptic solution, such as chlorhexidine, can be used at the venipuncture site.
Step-by-step explanation:
If a patient is allergic to alcohol and needs a venipuncture, an alternative antiseptic solution can be used at the site. One option is to use chlorhexidine, which is an effective alternative to alcohol for disinfecting the venipuncture site. Chlorhexidine is a broad-spectrum antiseptic that has been shown to be effective in preventing infection. It works by disrupting the cell membranes of microorganisms, killing them in the process.