Medical Laboratory Science (MLS), formerly known as Clinical Laboratory Science (CLS), professionals generate, interpret and report test results vital in making a timely and accurate diagnosis. Attention to detail and problem solving skills are highly valued in this profession.

Some MLS professionals work as generalists, which means they work in all areas of laboratory medicine including:

• chemistry
• hematology
• immunology
• microbiology
• blood banking

Others specialize in just one of these laboratory disciplines. MLS professionals are found in hospitals, commercial laboratories, blood banks, public health agencies, pharmaceutical research, forensic science and other businesses that generate laboratory data.

MLS professionals are credentialed. They may obtain certification by either of two nationally recognized agencies.

• The American Society for Clinical Pathology offers its Board of Certificaiton (BOC) exam. This credential requires a bachelor's degree (4 years) and successful performance on the BOC certification exam. Those certified by the BOC use the professional title of Medical Laboratory Scientist or MLS(ASCP).
• The American Medical Technologists (AMT) also offers a certification exam for those who hold a bachelor's degree. Those passing the AMT exam use the professional title of Medical Technologist or MT.

MLSs or MTs are experts in medical testing who interact with all members of the healthcare team that rely on accurate and timely results to enhance patient care.

The Medical Laboratory Science Program at Illinois State University is accredited by the National Accrediting Agency for Clinical Laboratory Sciences (NAACLS), 5600 N. River Rd., Rosemont, IL 60018. Phone 773-714-8880.