Medical Laboratory Scientist 1


18400 (E S SEIU 925 HCP/LT)
17877 (NE S SEIU 925 HCP/LT)
22591 (NE H NI SEIU 925 HCP/LT)


Perform and/or provide high level support for the performance of moderate to high complexity clinical laboratory tests and interpretations used in the screening, diagnosing, and treating of pathological conditions.


Perform and/or provide high level support for the performance at a professional level of moderate to high complexity manual and automated clinical diagnostic tests and interpretations in a clinical laboratory.


Under general supervision, perform and/or provide high level support for the performance of moderate to high complexity testing and interpretations.


Perform clinical diagnostic laboratory tests; record, evaluate and interpret test results; contact appropriate personnel for tests with unusual or critical findings;

Assist in developing, following procedures and/or troubleshooting procedures and problems that may or may not include actual wet lab involvement, but require a comprehensive understanding of laboratory testing gained from a foundation of medical laboratory science training and experience performing moderate to high complexity testing.

Calibrate, operate, troubleshoot and perform preventive maintenance to laboratory instruments and related equipment. The following is a partial list of instruments commonly utilized by personnel in this class:

  • Microbial ID and susceptibility instrumentation
  • Blood culturing instruments and gas chromatography instrumentation
  • Blood gas analyzers; high performance liquid chromatography instrumentation
  • Light, phase and fluorescence microscopes
  • Discrete chemistry and immunoassay analyzers
  • Electrophoresis and densitometry instrumentation
  • Mass spectrometry instrumentation
  • Electronic cell counters; coagulation analyzers
  • Operate and troubleshoot total laboratory automation (TLA) systems
  • DNA extraction, DNA sequencing and library preparation instrumentation

Assure that quality control requirements are met to validate test results; record data and maintain continual quality assurance program; utilize electronic quality control system;

Utilize laboratory information system, discipline-specific middleware, as well as institution-based computer systems for test result entry and/or data acquisition;

Collect specimens; may assist and instruct patients and medical staff in proper specimen collection techniques; may assist physicians in obtaining bone marrow specimens and preparing specimens for evaluation;

Assist in instruction and training of new employees, post-doctoral fellows, residents, and students;

Act as a resource to other lab personnel including Clinical Laboratory Technicians and Specimen Processing Technicians;

Assist in the design, development and evaluation of new procedures/processes;

Prepare and verify the quality of reagents, standards, and control samples;

Continuing education: keep ASCP or other certification up to date per guidelines of National Organization; and

Perform related duties as required.


Accredited Bachelor’s Degree in Medical Laboratory Science OR equivalent education/experience


Current Medical Laboratory Science certification with the American Society for Clinical Pathology (ASCP) or equivalent certifying organization; or certification with specialty organization appropriate to the laboratory division.


One year of experience as a Medical Laboratory Scientist Trainee. Up to one year of on-the-job experience performing clinical testing in a Medical Laboratory Science Program externship may count towards the experience requirement.


  • New Class: 1-3-73
  • Revise Title and Class: 12-14-73
  • Revise Class: 4-18-88
  • Revise MQ: 5-14-04
  • Civil Service Reform (CSR) Class Conversion (mc): 06-01-05
  • Revise Class/New CBU: 3-8-11
  • Revise Class: 1-1-14, including title change from Clinical Technologist 1 to Medical Laboratory Scientist 1
  • Revise basic function and distinguishing characteristics: 5-1-22