ASCP Medical Laboratory Scientist (MLS) – Practice Exams

ASCP Medical Laboratory Scientist (MLS) — Practice Exams

Welcome to the practice course for the Medical Laboratory Scientist, MLS(ASCP) Examination (administered by the ASCP Board of Certification). This course contains 1,500 original practice questions built to the Board’s official MLS Examination Content Guideline: blood banking, chemistry, hematology, and microbiology at 285 questions each, and urinalysis and other body fluids, immunology, and laboratory operations at 120 questions each. Every question includes a detailed explanation, and every calculation question shows the full computation.

This course prepares you for the scientist-level MLS(ASCP) examination. It is not practice for the associate-level MLT(ASCP) Medical Laboratory Technician examination, which is a different credential with its own content guideline.

Work through the seven portion drills to build strength area by area, then take the full simulation: 100 questions in 150 minutes, mirroring the size and testing time of the real examination. The real examination is computer-adaptive and is scored on a scale of 100 to 999 with a minimum passing score of a scaled 400; the Board states there is no set number or percentage of questions you must answer correctly. The simulation’s 70% mark is a practice benchmark only, provided so you can track your readiness against a consistent yardstick.

These are original practice questions written for PassProfessor; they are not ASCP Board of Certification examination questions.