360 Training Food Handlers Practice Exam

Which type of poisoning is associated with consuming tuna fish?

1. Scombroid poisoning

2. Botulism

3. Shellfish poisoning

4. Salmonella poisoning

The correct answer is: Scombroid poisoning

Scombroid poisoning is associated with the consumption of fish, particularly species like tuna. This type of poisoning occurs due to the improper storage of the fish, which leads to the breakdown of histidine into histamine by bacteria as the fish spoils. When the histamine levels in the fish reach a certain threshold, consuming the fish can lead to symptoms resembling an allergic reaction, including flushing, headaches, and gastrointestinal discomfort. This reaction highlights the importance of proper fish handling and storage practices to prevent scombroid poisoning. The other types of poisoning listed are related to different sources. Botulism, for instance, is typically associated with improperly canned foods and is caused by the toxin produced by the bacterium Clostridium botulinum. Shellfish poisoning is related to the consumption of contaminated shellfish, which can accumulate toxins from their environment. Salmonella poisoning is usually linked to poultry, eggs, and other foods through contaminated surfaces or improper cooking. Understanding these distinctions emphasizes the unique risks associated with various foods, such as tuna in the case of scombroid poisoning.