ASCP C study guide
ASCP C · Work through your exam, one topic at a time.
The ASCP certification credential is administered through the ASCP Board of Certification (BOC) and is one of the standard entry credentials for laboratory professionals in the United States. ASCP - the American Society for Clinical Pathology - is the professional society behind the education, certification-preparation resources, and credential-maintenance tools that surround that exam; its website lists dedicated BOC Initial Certification Preparation material and a Credential Maintenance Program (CMP) for people who already hold a credential. The ASCP C study guide has 8 sections and about 2,454 words.
01Blood Banking and Immunohematology
Forward (cell) typing uses anti-A and anti-B reagents against the patient's red cells; reverse (serum) typing uses A1 and B reagent cells against the patient's plasma. In a healthy adult the two must agree, so the first response to any discrepancy is to repeat the test and rule out a clerical or wrong-patient error.
343 words, about 2 min02Clinical Chemistry
Most wrong chemistry answers begin before the sample is analyzed. Hemolysis falsely raises potassium, LDH, AST, and phosphate and interferes with bilirubin assays.
297 words, about 1 min03Hematology and Coagulation
Classify anemia by MCV, then use the reticulocyte count to separate underproduction from destruction or loss. Correct the retic for anemia: corrected retic % = retic % × (patient Hct ÷ normal Hct); the reticulocyte production index further divides by maturation time.
313 words, about 2 min04Microbiology
Specimen quality determines result quality: sputum must show squamous epithelial cells below 10 per low-power field, urine should be a clean-catch midstream, and tissue or fluid beats a swab. Gram stain gives the first branch point (gram reaction, morphology, arrangement), then culture media and biochemical reactions narrow the identification, confirmed by MALDI-TOF or molecular methods.
274 words, about 1 min05Immunology
Innate immunity (barriers, complement, phagocytes, NK cells) acts within minutes without memory. Adaptive immunity is clonal, specific, and remembers: B cells make antibody and CD4+ T cells orchestrate while CD8+ T cells kill.
310 words, about 2 min06Molecular Diagnostics and Cytogenetics
PCR amplifies a target; real-time PCR quantifies it (and, with allele-specific probes, detects single-nucleotide variants). Sanger sequencing reads one amplicon; next-generation sequencing reads millions in parallel and is the tool for panels and whole exome.
294 words, about 1 min07Laboratory Administration and Operations
CLIA categorizes tests as waived, moderate, or high complexity and sets personnel, QC, and proficiency testing requirements. Laboratories are surveyed by CMS or a deemed authority (CAP, TJC).
306 words, about 2 min08Phlebotomy and Specimen Collection
The order exists to prevent additive carryover. Standard sequence: blood culture bottles (or sterile yellow SPS tube), then light blue sodium citrate, then serum tubes (red, gold/SST), then green heparin, then lavender EDTA, then gray sodium fluoride/oxalate.
317 words, about 2 min