Final answer:
The term that belongs in the blank is certification. In order to work as a medical laboratory technician, David needs to pass a test and obtain certification. Medical technologists typically hold a bachelor's degree and certification, while medical laboratory technicians usually have an associate's degree and may perform similar duties to medical technologists.
Step-by-step explanation:
The term that belongs in the blank is certification.
In order to work as a medical laboratory technician, David needs to pass a test and obtain certification. This certification validates his knowledge and competency in the field of medical laboratory technology.
Medical technologists typically hold a bachelor's degree and certification, while medical laboratory technicians usually have an associate's degree and may perform similar duties to medical technologists.