CDR DTR study guide
CDR DTR · Work through your exam, one topic at a time.
The Nutrition and Dietetics Technician, Registered (NDTR) credential - commonly called the DTR - is the entry-level credential for technicians who work alongside registered dietitian nutritionists in clinical, community, and foodservice settings. NDTRs screen patients, collect nutrition data, implement care plans designed by an RDN, monitor food intake, and support foodservice operations, so the exam tests both nutrition science and the practical systems that deliver food to people. The examination is computer-delivered and multiple choice, organized around four broad content areas: food and nutrition sciences; nutrition care for individuals and groups; foodservice systems; and management of food and nutrition systems. Expect application questions rather than pure recall - scenarios asking what you would do first, which calculation applies, or why a procedure exists. The CDR DTR study guide has 4 sections and about 1,201 words.
01Food and Nutrition Sciences
Digestion, absorption, and metabolism of carbohydrate, protein, and fat anchor this domain. Memorize Atwater factors: carbohydrate 4 kcal/g, protein 4 kcal/g, fat 9 kcal/g, alcohol 7 kcal/g.
318 words, about 2 min02Nutrition Care for Individuals and Groups
Use the four NCP steps in order: nutrition assessment, nutrition diagnosis (written as a PES statement-Problem, Etiology, Signs/Symptoms), intervention, and monitoring/evaluation. Screening comes before assessment: screening is a brief, validated risk check any trained staff member can complete, while assessment is a comprehensive review done by the RDN or the DTR under supervision.
288 words, about 1 min03Foodservice Systems
Know four systems and their trade-offs. Conventional (cook-serve) produces and serves on site-high labor, short holding time.
295 words, about 1 min04Management of Food and Nutrition Systems
Expect questions on the management functions-planning, organizing, staffing, directing, coordinating, reporting, and budgeting-plus leadership styles: autocratic, democratic, laissez-faire, situational, and transformational. Autocratic leadership is not automatically wrong; it suits emergencies and untrained staff.
300 words, about 2 min