Medical Laboratory Scientist
American Medical Technologists·MLS
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- practice questions
- 1,000+
- exam domains
- 7
- practice test
- Free
Exam at a glance
- Exam fee
- $260 for US candidates, $210 for international ASCPi
- Questions on exam
- 100 multiple-choice questions
- Duration
- 2 hours 30 minutes
- Passing score
- 400 on 0-999 scale
- Validity
- Certification valid 3 years via CMP (Credential Maintenance Program) requiring 36 CMP points including 8 in specialization areas, 1 in patient safety, 1 in medical ethics, and 26 in lab specialty.
Published exam facts, from the official outline.
What’s on the MLS exam
- Blood Banking (17-22%)
- Chemistry (17-22%)
- Hematology (15-20%)
- Microbiology (17-22%)
- Urinalysis/Other Body Fluids (5-10%)
- Immunology (5-10%)
- Laboratory Operations (5-10%)
Official exam blueprint domains — your practice bank mirrors this outline.
The MLS question bank follows the official exam blueprint across 7 domains, so your practice mirrors the real outline — and shows you exactly where you’re weak. See the full blueprint on mlspracticetest.com →
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