In the vast majority of jurisdictions, a standard Certified Nursing Assistant is not permitted to draw blood, as phlebotomy typically falls outside their foundational scope of practice and state licensing permissions. The routine responsibilities of a CNA focus primarily on basic patient hygiene, monitoring and recording vital signs, assisting with mobility, and helping individuals manage daily activities. However, the legal allowances vary significantly depending on the state and the specific healthcare facility's internal policies. In some states or specialized medical settings, a CNA who undergoes additional, formal certification training in phlebotomy may be legally authorized to perform blood draws. Without this extra, documented credential and specific institutional approval, performing an invasive procedure like venipuncture is strictly prohibited and reserved for professionals such as phlebotomists, licensed practical nurses, registered nurses, or medical laboratory technicians.