PAP Quality Control and Laboratory Standards 1 — Questions and Answers
Question 1: Under CLIA regulations, how often must cytology laboratories enroll in an approved proficiency testing program for Pap tests?
- Every 6 months (Correct answer)
- Annually
- Every 2 years
- Every 3 years
Correct answer: Every 6 months
CLIA requires cytology laboratories performing Pap tests to enroll in approved proficiency testing every 6 months.
Question 2: What is the maximum number of slides a cytotechnologist may screen per 24-hour period under CLIA regulations?
- 75
- 100 (Correct answer)
- 150
- 200
Correct answer: 100
CLIA limits cytotechnologists to screening no more than 100 slides per 24-hour period to ensure quality review.
Question 3: Which process involves re-examining a random selection of cytotechnologist-negative Pap slides before sign-out?
- Retrospective review
- Prospective rescreening (Correct answer)
- Correlation review
- Rapid prescreening
Correct answer: Prospective rescreening
Prospective rescreening (10% rescreen) involves randomly reviewing negative cases before final sign-out to catch false negatives.
Question 4: A laboratory's Pap test false-negative rate is best monitored by correlating cytology results with:
- Patient age and risk factors
- Histopathology biopsy results (Correct answer)
- HPV vaccination records
- Clinician referral patterns
Correct answer: Histopathology biopsy results
Cytology-histology correlation compares Pap results to subsequent biopsy findings, serving as the gold standard for monitoring false-negative rates.
Question 5: Which quality indicator is used to evaluate the adequacy of Pap test specimen collection across a laboratory?
- Positive predictive value
- Unsatisfactory specimen rate (Correct answer)
- Turnaround time
- Atypical squamous cells rate
Correct answer: Unsatisfactory specimen rate
The unsatisfactory specimen rate monitors collection technique quality; excessively high rates prompt clinician education.
Question 6: Under CLIA, which personnel are required to undergo annual competency assessment in gynecologic cytology?
- Only laboratory directors
- Cytotechnologists and pathologists who sign out cases (Correct answer)
- Phlebotomists and specimen processors only
- All hospital employees
Correct answer: Cytotechnologists and pathologists who sign out cases
CLIA mandates annual competency assessments for all personnel who screen or interpret gynecologic cytology, including cytotechnologists and pathologists.
Question 7: A quality control review finds that a laboratory's ASCUS rate is 10% of all Pap tests. According to Bethesda guidelines, this rate is:
- Acceptable and expected
- Too low and warrants investigation
- Elevated and warrants investigation (Correct answer)
- Irrelevant without colposcopy data
Correct answer: Elevated and warrants investigation
The Bethesda System recommends an ASC-US rate generally below 5% of all interpretations; a 10% rate is elevated and should prompt internal review.
PAP Quality Control and Laboratory Standards 1
Under CLIA regulations, how often must cytology laboratories enroll in an approved proficiency testing program for Pap tests?