Final answer:
The phlebotomist should allow the site to dry from an alcohol cleanse before venipuncture for several reasons: to avoid alcohol residue affecting test results, to make it easier to find a suitable vein, and to ensure patient comfort.
Step-by-step explanation:
The phlebotomist should allow the site to dry from an alcohol cleanse before venipuncture for several reasons. First, alcohol is used to cleanse the area because it kills bacteria and reduces the risk of infection. Allowing the site to dry ensures that the alcohol has enough time to evaporate, which means that there won't be any alcohol residue left on the skin that could interfere with the blood sample and potentially affect the test results.
Second, wet skin can make it more difficult to find a suitable vein for venipuncture. When the skin is wet, it might be harder to visualize the veins clearly, which increases the likelihood of mistakes or unsuccessful attempts.
Lastly, alcohol can cause a stinging sensation when it comes into contact with an open wound. Allowing the site to dry gives the patient a chance to feel more comfortable before the actual procedure begins.