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How to Become a Medical Laboratory Scientist: A Step-by-Step Guide

February 16, 2023 · 4 min read

A Medical Laboratory Scientist (MLS) is a healthcare professional who performs laboratory tests to assist in the diagnosis, treatment, and prevention of diseases. They analyze body fluids, tissues, and cells, and use sophisticated instrumentation and techniques to produce reliable test results. MLSs play a crucial role in the medical field, as the results they generate are used by physicians and other healthcare providers to make informed decisions about patient care.

Their work includes:

  1. Collecting and preparing samples for testing
  2. Operating and maintaining laboratory equipment and instruments
  3. Conducting laboratory tests, such as blood counts, biochemical analysis, and microbiological culture and sensitivity
  4. Analyzing test results and reporting findings to physicians and other healthcare providers
  5. Quality control and maintenance of laboratory standards

MLSs work in hospital-based clinical laboratories, independent diagnostic laboratories, public health laboratories, and research institutions.

If you are interested in becoming an MLS, this article will provide you with a step-by-step guide to help you get started.

Step 1: Earn a Bachelor's Degree

The first step in becoming an MLS is to earn a bachelor's degree in medical laboratory science or a related field, such as biology, chemistry, or clinical laboratory science. Many MLS programs are designed to provide students with a comprehensive education in laboratory science, including courses in anatomy and physiology, chemistry, hematology, immunology, and microbiology.

Step 2: Complete a Clinical Training Program

After earning a bachelor's degree, you will need to complete a clinical training program to gain hands-on experience in a laboratory setting. During this time, you will work alongside experienced MLSs and learn how to perform laboratory tests, interpret results, and report findings to physicians and other healthcare providers. Clinical training programs typically last one year and can be completed at a hospital, diagnostic laboratory, or research institution.

Step 3: Become Certified

Becoming certified as an MLS is not required in all states, but it is highly recommended, as it demonstrates your competence and commitment to the field. Many states require certification from a recognized certification agency, such as the American Society for Clinical Pathology (ASCP). To become certified, you must pass an exam that assesses your knowledge and skills in medical laboratory science.

Step 4: Find a Job

Once you have completed your education and training, you are ready to start looking for a job as an MLS. There are many exciting career opportunities available, including positions in hospital-based clinical laboratories, independent diagnostic laboratories, public health laboratories, and research institutions. You may also choose to specialize in a particular area of laboratory science, such as hematology, immunology, or clinical chemistry.

Step 5: Maintain Your Certification

Finally, it is important to maintain your certification as an MLS. This requires ongoing training and continuing education to stay up-to-date with the latest advances in the field. Many certification agencies also require MLSs to earn a certain number of continuing education credits each year to maintain their certification.

Earn a Master's Degree

While a bachelor's degree is the minimum educational requirement to become an MLS, some employers may prefer or require a master's degree. A master's degree in medical laboratory science or a related field can provide you with a more advanced education and additional career opportunities. A master's degree program typically takes two years to complete and may include coursework in advanced laboratory techniques, research methods, and data analysis.

Get Involved in Research

Getting involved in research projects or laboratory studies is another great way to enhance your education and increase your chances of finding a job as an MLS. Research experience can provide you with a deeper understanding of laboratory science and can demonstrate your commitment to the field. You may be able to find research opportunities through your college or university, through local hospitals or laboratories, or through professional organizations such as the American Society for Clinical Laboratory Science (ASCLS).

Join a Professional Organization

Joining a professional organization is another great way to enhance your education and stay up-to-date with the latest developments in medical laboratory science. Professional organizations provide opportunities for continuing education, networking, and advocacy for the MLS profession. Some of the most prominent organizations for MLSs include the American Society for Clinical Pathology (ASCP), the National Accrediting Agency for Clinical Laboratory Sciences (NAACLS), and the American Society for Clinical Laboratory Science (ASCLS).


In conclusion, becoming a Medical Laboratory Scientist requires a combination of education, training, and hands-on experience. If you are dedicated to the field and willing to put in the time and effort required, you can have a rewarding and challenging career in healthcare. By following these steps, you can take the first step towards a career as an MLS and make a difference in the lives of patients.

by Yevheniia Osmakova

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