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Scientist in Histotechnology - HTL(ASCP) — Requirements & Free Practice

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Each license and applicant pathway has its own requirements and exemptions. Choosing practice questions does not determine your eligibility.

Scientist in Histotechnology - HTL(ASCP)

Licensing authority: American Society for Clinical Pathology Board of Certification (ASCP BOC)

Initial by examination
Scientist in Histotechnology - HTL(ASCP)
Eligibility
Applicant must meet at least one ASCP BOC HTL certification examination eligibility route, with applicable education, training and/or experience evidence; this investigation concerns the specified post-November 1, 2026 testing window.

Scientist in Histotechnology - HTL(ASCP)

Provider
ASCP BOC
Format
Computer adaptive multiple-choice questions with one best answer
Exam questions
Total questions: 100.
Time limit
2 hours 30 minutes
Examination outline

The authority publishes percentage ranges for each content area. The practice percentages below use the midpoint of each range, normalized to 100%; they are not exact percentages published by the authority. Practice question counts may differ slightly because of rounding.

  • Fixation — Official range: 15–25% (Practice allocation: 19.51%)
    • Tissues
    • Procedures
    • Parameters
    • Reagents
    • Instrumentation
  • Processing — Official range: 10–20% (Practice allocation: 14.63%)
    • Tissues
    • Procedures
    • Instrumentation
    • Reagents
  • Embedding/Microtomy — Official range: 15–25% (Practice allocation: 19.51%)
    • Tissues
    • Procedures
    • Instrumentation
  • Staining — Official range: 30–40% (Practice allocation: 34.15%)
    • Tissues
    • Procedures
    • Instrumentation
    • Reagents/Dyes
    • Mounting Procedures
  • Laboratory Operations — Official range: 10–15% (Practice allocation: 12.2%)
    • Laboratory Safety Regulations
    • Laboratory Mathematics
    • Ancillary Equipment/Instruments
    • Basic Management Principles
    • Basic Education Principles
    • Laboratory Regulations
Examination sources