This plan turns a large hematology outline into a repeatable loop: learn the mechanism, retrieve it without notes, interpret laboratory patterns, and identify morphology from more than one image.
The current ASCP Board of Certification MLS examination content guideline assigns hematology—including physiology, disease states, laboratory testing, and hemostasis—approximately 17–22% of the examination. Hematology is only one part of the full MLS outline, so use this plan alongside the other required content areas and your program's curriculum.
Source: current ASCP BOC MLS/MLSi examination content guideline, revised September 25, 2025 when checked. Examination guidelines and percentages can change, so check the current official guideline before planning your study. ViviCell and this guide are independent and are not affiliated with or endorsed by the ASCP Board of Certification.
Download the current official guideline and mark each hematology topic strong, developing, or unfamiliar. Build a dated checklist and choose a lesson, question source, and image source for the gaps rather than collecting resources without a job for them.
Review production, function, maturation, and destruction of blood cells. Pair short recall sessions with normal-cell morphology so that lineage and maturation become the reference point for later abnormalities.
Work through anemia patterns, hemolysis, hemoglobin disorders, and erythrocytosis. Connect indices and laboratory findings to morphology, and practice explaining why plausible alternatives do not fit.
Compare benign disorders, hereditary anomalies, and myeloid and lymphoid neoplasia. Alternate concept review with image identification and lineage or maturation practice.
Study platelet quantity, function, and common disease patterns. Use both timed and untimed image sets, and keep a confusion log for cells or artifacts you repeatedly mix up.
Review counts, differentials, indices, hemoglobin methods, hemolysis indicators, selected stains, flow cytometry, and molecular or cytogenetic concepts. Work from specimen and result to method limits and likely sources of error.
Build from primary and secondary hemostasis into factor deficiencies, inhibitors, fibrinolysis, hypercoagulability, DIC, and core laboratory determinations. Include preanalytic variables and interference when interpreting result patterns.
Mix topics deliberately using short cases, image sets, and question blocks. Log errors by cause—knowledge gap, misread wording, calculation, or visual confusion—and revisit them after a delay.
Recheck the official outline, repeat weak categories, and keep hematology proportional to the whole MLS examination. Avoid last-minute expansion into new, unsupported material.
ViviCell is a free, offline hematology study app with lessons, spaced review, quizzes, cases, atlases, and cell-identification practice. Start with the five-image morphology exercise, or use the LatticeMLS reference library for review pages with citations across laboratory subjects.