MLT study guide
MLT · Work through your exam, one topic at a time.
The Medical Laboratory Technician (MLT) certification examination is the entry-level credentialing exam that many employers and state licensure boards expect before a technician performs patient testing independently. Candidates are typically graduates of an accredited medical laboratory technician or clinical laboratory technician program, though eligibility rules differ by certifying body and should be confirmed before you apply. The MLT study guide has 7 sections and about 1,946 words.
01Blood Bank / Immunohematology
Forward (cell) grouping detects RBC antigens with reagent antisera; reverse (serum) grouping detects plasma antibodies using A1 and B reagent cells. Adult forward and reverse results must agree before transfusion, and discrepancies are resolved rather than ignored.
309 words, about 2 min02Clinical Chemistry
Chemistry questions test analytical reasoning as much as memorized ranges. Know the Beer-Lambert relationship behind spectrophotometry, the difference between end-point and kinetic (rate) methods, and how ion-selective electrodes measure sodium, potassium, and chloride.
255 words, about 1 min03Hematology
Automated analyzers derive red cell indices from measured RBC count, hemoglobin, and hematocrit; understand MCV, MCH, MCHC, and RDW, plus the reticulocyte count and its correction for anemia. Classify anemia by MCV: microcytic (iron deficiency, thalassemia, anemia of chronic disease), normocytic, or macrocytic (B12/folate deficiency, alcohol, reticulocytosis), and confirm marrow response with the corrected or absolute reticulocyte count.
314 words, about 2 min04Microbiology
Microbiology questions reward a specimen-to-answer workflow: proper collection and transport, direct Gram stain, culture on selective and differential media, colony and biochemical identification, then susceptibility testing. Know what an MIC and a breakpoint mean, how disk diffusion works, and the resistant phenotypes requiring specific reporting: MRSA (mecA, cefoxitin screen), ESBLs, carbapenemases, inducible clindamycin resistance (D-test), and vancomycin-resistant enterococci.
265 words, about 1 min05Urinalysis and Body Fluids
Urinalysis is physical (color, clarity, specific gravity), chemical (dipstick: pH, protein, glucose, ketones, blood, leukocyte esterase, nitrite, bilirubin, urobilinogen), and microscopic (RBCs, WBCs, epithelial cells, casts, crystals). Report formed elements per high-power field after centrifugation, and casts per low-power field.
267 words, about 1 min06Immunology / Serology
Serology questions test method principles and the antibody response. IgM appears first, is pentameric, and is efficient at agglutination and complement fixation; IgG is monomeric, crosses the placenta, and dominates the secondary response.
261 words, about 1 min07Laboratory Operations and Quality Management
Quality management spans preanalytical, analytical, and postanalytical phases. Distinguish quality control (daily monitoring of a method with control materials) from quality assurance (the broader system: SOPs, competency assessment, proficiency testing, audits, corrective action).
275 words, about 1 min