Food Safety Flashcards
7 cards from real RDN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Food Safety flashcards as text
Which pathogen is most commonly associated with undercooked poultry and is the leading cause of bacterial foodborne illness in the US?
Answer: Salmonella
Salmonella is the most common bacterial cause of foodborne illness in the US and is frequently linked to undercooked poultry and eggs.
A food handler returns to work after recovering from a confirmed Norovirus illness. When is it safe to resume food handling duties?
Answer: After being symptom-free for at least 48 hours
FDA Food Code requires food handlers to be symptom-free for at least 48 hours after the last episode of vomiting or diarrhea before returning to work.
Which temperature range defines the 'danger zone' for bacterial growth in foods?
Answer: 40°F–140°F (4°C–60°C)
The USDA and FDA define the temperature danger zone as 40°F to 140°F, where most pathogenic bacteria multiply rapidly.
A hospital dietitian is planning menus for immunocompromised patients. Which food should be EXCLUDED due to Listeria risk?
Answer: Cold deli meats served without reheating
Listeria monocytogenes can grow at refrigerator temperatures, making ready-to-eat deli meats a high risk for immunocompromised individuals unless reheated to 165°F.
The FIFO (First In, First Out) inventory method is used in food storage primarily to:
Answer: Ensure older products are used before newer ones to reduce spoilage
FIFO ensures older inventory is used first, minimizing the risk of expired or spoiled food being served.
Cross-contamination in a food preparation setting is BEST prevented by:
Answer: Using separate cutting boards for raw meats and ready-to-eat foods
Dedicated cutting boards for raw meats and ready-to-eat foods is the primary physical barrier against cross-contamination.
Which mycotoxin, produced by Aspergillus molds, is a potent hepatocarcinogen and a significant food safety concern in corn and peanuts?
Answer: Aflatoxin
Aflatoxins, particularly aflatoxin B1, are produced by Aspergillus flavus and A. parasiticus and are among the most potent naturally occurring carcinogens known.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- admin.cdrnet.org — Exam information · verified Nov 2026
- cdrnet.org — Eligibility, fees, exam format, retake fee, time limit, score validity, retake policy, score release, test delivery, test dates · verified Oct 2026