MLS Cheat Sheet 2026

The 30 highest-yield MLS facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. A patient with Type A blood has which naturally occurring antibody in their serum? → Anti-B
2. What does informed consent require in Medical Laboratory Scientist practice? → Full disclosure of relevant information before obtaining agreement
3. Which laboratory test is used to assess coagulation function? → Prothrombin Time (PT)
4. Which of the following tests is most commonly used to assess kidney function in a clinical laboratory? → Creatinine
5. Which piece of laboratory equipment is used to measure the absorbance of a solution at a specific wavelength? → Spectrophotometer
6. Which of the following is a critical component of a laboratory’s quality assurance (QA) program? → Proficiency testing
7. What is the primary function of a fume hood in a laboratory? → Protect users from harmful fumes
8. Which blood type is the universal recipient for packed red blood cells? → AB positive
9. What is the primary purpose of quality control (QC) in a clinical laboratory? → To ensure accuracy and reliability
10. Which Rh antigen is considered the most clinically significant and immunogenic? → Rh D
11. Which test is most appropriate for diagnosing diabetes mellitus? → Hemoglobin A1c
12. Which principle underpins Total Quality Management (TQM) in Medical Laboratory Scientist? → Everyone in the organization is responsible for quality
13. A positive Direct Antiglobulin Test (DAT) indicates that: → The patient's red blood cells are coated with IgG or complement in vivo
14. The Kleihauer-Betke acid elution test is used to: → Quantify the volume of fetal red cells in maternal circulation
15. Warm autoimmune hemolytic anemia (WAIHA) is most commonly associated with which type of autoantibody? → IgG pan-reactive antibody active at 37°C
16. Which skill is most important for success in Medical Terminology & Anatomy within Medical Laboratory Scientist? → Continuous learning and adaptation
17. In Medical Laboratory Scientist, what is a risk matrix used for? → Evaluating risks based on likelihood and impact
18. What is a risk register in Medical Laboratory Scientist practice? → A documented list of identified risks with their analysis and response plans
19. Which approach best supports quality outcomes in Emergency Procedures & Response for Medical Laboratory Scientist? → Systematic application of evidence-based methods
20. What is the importance of staying current with trends in Clinical Procedures & Protocols for Medical Laboratory Scientist? → It ensures practices remain effective and relevant
21. How does collaboration enhance Clinical Procedures & Protocols in Medical Laboratory Scientist? → It brings diverse perspectives and improves outcomes
22. What does accountability mean in Medical Laboratory Scientist team management? → Taking ownership of responsibilities and outcomes
23. What is the role of documentation in Medical Terminology & Anatomy for Medical Laboratory Scientist? → It provides an accurate record for accountability and reference
24. Transfusion-related acute lung injury (TRALI) is primarily caused by: → Donor antibodies activating recipient neutrophils in the lung vasculature
25. An antibody identification panel in the blood bank is primarily used to: → Identify the specificity of unexpected antibodies in patient serum
26. Which approach best supports quality outcomes in Medical Terminology & Anatomy for Medical Laboratory Scientist? → Systematic application of evidence-based methods
27. What is the role of documentation in Clinical Procedures & Protocols for Medical Laboratory Scientist? → It provides an accurate record for accountability and reference
28. What is the role of mentoring in Medical Laboratory Scientist professional development? → Guiding and supporting professional growth through experience sharing
29. What is the purpose of an autoclave in a clinical laboratory? → Sterilize laboratory equipment
30. At what temperature and conditions must platelets be stored in the blood bank? → 20–24°C with continuous gentle agitation