Practice Test Geeks(CTR) Certified Tumor Registrar Practice Test
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Data Quality & Completeness Flashcards

7 cards from real CTR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which of the following scenarios most directly impacts the 'comparability' dimension of data quality in a population-based registry?

    Answer: A mid-year change in ICD-O-3 coding rules without documenting the transition

    Comparability requires consistent application of coding rules over time; undocumented rule changes break the ability to compare data across periods.

  2. When a hospital cancer registry submits data to a state central registry, which process ensures that a case reported by two different hospitals for the same patient is counted only once?

    Answer: Record linkage and deduplication

    Record linkage uses probabilistic or deterministic matching on patient identifiers to detect and merge or suppress duplicate submissions.

  3. A Certified Tumor Registrar reviewing follow-up data finds that 12% of analytic cases have no vital status update in the past 5 years. This primarily affects which quality dimension?

    Answer: Data completeness

    Missing vital status updates represent incomplete data, reducing the registry's ability to calculate survival statistics.

  4. Which NAACCR standard item is used to flag a data element that was reviewed and confirmed as correct, even if it appears unusual?

    Answer: Over-ride flag

    Over-ride flags are used to suppress edit errors for records where the data has been verified as correct despite triggering a warning.

  5. A state cancer registry finds that a specific hospital's submission has a 30% higher rate of 'unknown' stage compared to similar facilities. The BEST first investigative step is to:

    Answer: Conduct a targeted audit comparing the hospital's source records to its submitted data

    A targeted audit identifies whether the high 'unknown' rate reflects true data limitations or a systematic coding or casefinding error at that facility.

  6. According to SEER guidelines, how should a registrar handle a case where the patient was diagnosed at autopsy with no prior cancer history?

    Answer: Abstract the case and code Basis of Diagnosis as 'autopsy only'

    Autopsy-only cases are reportable and coded with the appropriate Basis of Diagnosis code to distinguish them from clinically diagnosed cases.

  7. Which data quality concept refers to the registry capturing all required data fields for a reportable case, as opposed to capturing the case itself?

    Answer: Item-level completeness

    Item-level completeness measures the proportion of required fields that are coded versus missing within abstracted cases.