Medical laboratory scientists (also known as medical technologists or clinical laboratory scientists) must have a B.S. degree. To work as a medical laboratory scientist (MLS), you need to be certified by the Board of Certification (BOC) of the American Society for Clinical Pathology (ASCP) once you have a degree. To be eligible to take the MLS Board of Certification examination, you must complete a clinical internship accredited by the National Accrediting Agency for Clinical Laboratory Sciences (NAACLS). These programs prepare students with a combination of lectures and clinical rotations in hematology, clinical chemistry, microbiology, mycology, parasitology, immunology, immunohematology (blood bank), and sometimes genetics. Accreditation of medical laboratory science programs by NAACLS ensures that the programs maintain high educational standards.