Medical Technologist / Medical Laboratory Scientist (MT/MLS) (MLS) Exam Blueprint

MLS

100Questions
150 minDuration
400/400/999 scaled scorePassing Score
$135Price
3 yearsValid For
1Languages
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Exam Domains

1 Blood Banking/Transfusion Medicine 20%
2 Chemistry 20%
3 Hematology 20%
4 Immunology/Serology 8%
5 Microbiology 20%
6 Urinalysis/Body Fluids 8%

Exam Details

Question TypesMultiple Choice (single best answer)
FormatLinear fixed-form computer-based examination (CBE)
Online ProctoringAvailable
ID RequirementsGovernment-issued photo ID required. Name must match ASCP BOC registration exactly.
RenewalRequired -- 3-year recertification cycle. Recertification requires 36 CE credits per 3-year cycle. CE must be in laboratory medicine or related clinical science. Recertification application submitted through ASCP BOC portal.
PrerequisitesBachelor's degree from an accredited MLS/MT program, or combination of education and clinical laboratory experience per ASCP route requirements
Retake PolicyCandidates must wait 90 days between attempts. Maximum of 6 total attempts per credential. Full exam fee required for each attempt.
LanguagesEnglish

Official Study Resources