CTR Study Guide 2026
Everything you need to pass the CTR exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CTR Exam Format at a Glance
📚 CTR Topics to Study (69)
✍️ Sample CTR Questions & Answers
1. Which data item in the NAACCR record layout captures the ICD-O-3 histology morphology code along with its behavior digit?
NAACCR Item #522 (Histologic Type ICD-O-3) records the 4-digit morphology code, and Item #523 captures the behavior digit.
2. If surgery is performed at a reporting facility but radiation therapy is given at another facility, how should treatment be abstracted?
STORE guidelines require abstractors to capture all first-course treatment regardless of where it was administered.
3. What is the purpose of the NAACCR Call for Data in the context of data quality?
The NAACCR Call for Data is an annual request for standardized submissions to build national datasets, requiring data that has passed quality edits.
4. When a patient diagnosed with cancer is seen at a CoC-accredited facility only for a single consultation with no treatment rendered, the case is classified as:
A patient seen for consultation only with no treatment at the facility is classified as non-analytic Class of Case 30.
5. Under SEER guidelines, the follow-up interval for a patient diagnosed with cancer is measured from:
SEER measures the follow-up interval from the date of diagnosis to the date of last contact or death, which forms the basis for survival calculations.
6. A pathology report describes a tumor as 'poorly differentiated.' What does this indicate to the tumor registrar?
Poorly differentiated (high-grade) tumors have cells that look very abnormal under the microscope, correlating with more aggressive behavior and typically worse prognosis.