Final answer:
According to the CLSI guidelines, a phlebotomist should not attempt venipuncture more than two times on the same patient. If unsuccessful after two attempts, another phlebotomist should try. This protocol is to ensure patient safety and comfort.
Step-by-step explanation:
According to the Clinical and Laboratory Standards Institute (CLSI) guidelines, a phlebotomist should make no more than two unsuccessful venipuncture attempts on the same patient. If a phlebotomist is not able to successfully access a vein after two attempts, it is recommended that another phlebotomist should try. It is essential to minimize the number of attempts to reduce discomfort, anxiety, and potential complications for the patient. Notably, venous catheters are essential for long-term administration of medication or fluids, but they also pose a risk of catheter-related bloodstream infections, which can be serious and even fatal for some patients.