Final answer:
A clean uniform is an outward sign of a phlebotomist's professionalism.
Step-by-step explanation:
An outward sign of a phlebotomist's professionalism is a clean uniform. This demonstrates their commitment to maintaining a hygienic and professional appearance, which is essential in the medical field. It also helps to establish trust and confidence in patients.
Displaying offensive tattoos and concealing a name badge are not signs of professionalism. Offensive tattoos can be seen as unprofessional and may create a negative impression on patients and colleagues. Concealing a name badge can make it difficult for patients and others to identify and communicate with the phlebotomist.
Learn more about Professionalism of a phlebotomist