School of Clinical Laboratory Science

The clinical laboratory scientist functions as a crucial member of the healthcare team.  This laboratory professional performs tests which assist the physician in the detection, diagnosis and treatment of diseases.  Our CLS program provides training in all areas of the clinical laboratory – Blood Bank, Chemistry, Hematology, Immunology, Microbiology and Molecular Diagnostics. 

Someone who wants to help people by being a medical detective behind the scenes will find the career very gratifying.  The ideal candidate has a talent for the biological sciences and medicine.  An individual who enjoys solving problems, performing accurate and reliable laboratory tests, interpreting data, correlating test results with potential diseases, managing detailed information, developing and evaluating new tests, and communicating with other members of the healthcare team would prove to be successful in the profession.    

Mission Statement

The School of Clinical Laboratory Science, in keeping with the beliefs, mission and values of the Sisters of Mercy Health System and Mercy Hospital St. Louis, provides the professional component of the clinical laboratory science (medical technology/medical laboratory science) education program to prepare qualified laboratory science practitioners to serve our community.

Faithful to the spirit of our foundress, Catherine McAuley, and marked by the core values of service, justice, excellence, stewardship and respect for the dignity of each person, we strive to:

  • Meet the needs of the community for medical laboratory sciences by educating Clinical Laboratory Scientists/Medical Technologists/Medical Laboratory Scientists, whose knowledge and skills enhance quality patient care.
  • Satisfy the need of local students and affiliated colleges/universities for a    professional learning experience to complete their clinical laboratory science/medical technology/medical laboratory science education.
  • Stimulate the Hospital laboratory staff to maintain the highest level of quality performance and continually update their knowledge and skills to remain current in the profession.


Mercy Hospital St. Louis and its School of Clinical Laboratory Science accepts applications to and participation or employment in the program from individuals without regard to race, color, gender, religion, creed, national origin, ancestry, age, disability, sexual orientation, marital status, veteran status, military status or any other characteristic protected by law.


Contact Us

Terry Taff, MA, MT(ASCP)SM
CLS Program Director

Mercy Hospital St. Louis
School of Clinical Laboratory Science
615 S. New Ballas Road
St. Louis, MO  63141

Phone - 314-251-6855
Fax – 314-251-4580

E-mail –