A medical laboratory technologist (MLT/MLS) runs the tests that doctors use for most diagnoses: blood counts, chemistry panels, blood bank crossmatches, microbiology cultures and more. You will learn to run analyzers, check that results are right, and spot problems before a wrong number reaches a patient. The path in the US is usually a bachelor's degree in medical laboratory science (MLS) or a related science with a clinical year at an NAACLS-accredited program, then the ASCP Board of Certification (MLS) exam. Some states, including California, Florida, New York and others, legally require a
See the full roadmap free
Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 4 · about 16 weeks
Build the science and math base: general and organic chemistry, biology, anatomy and physiology, basic statistics, and dilutions. Learn what each major lab section (hematology, chemistry, microbiology, blood bank, urinalysis) is for and why. Practice unit conversions, molarity, and percent solutions by hand until they feel easy.
Lab Math: Conversions, Solutions, and Dilutions
Every day in the lab you make reagents, dilute high patient samples, and check that a result is believable. A wrong dilution factor means a wrong result for a real patient. This is the skill to make automatic first.
General and Organic Chemistry for the Lab
Nearly every test you run is chemistry: reactions that make color, enzymes that change substrates, pH that decides whether a reagent works. If you understand the chemistry, you can troubleshoot instead of just following steps.
Biology, Anatomy, and Physiology
Lab results are signals from the body. Knowing where blood cells are made, what the kidney filters, and what the liver produces tells you what an abnormal result means and why the doctor ordered the test.
Basic Statistics for Lab Results
Labs run on numbers that vary a little every time. Statistics tells you how much variation is normal and when it signals a problem. You will use it daily when judging controls and reference ranges, so a solid base now makes later quality work easy.
Know the Lab: What Each Section Does and Why
Before you learn procedures, you need the map. When you know what question each section answers, rotations make sense, you can talk to clinicians, and you will see how one patient sample travels through the whole lab.
Then 3 more stages (about 212 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.