Enteric precautions must be taken when dealing with:

Enteric precautions are specifically designed to prevent the transmission of pathogens that are primarily spread through the gastrointestinal tract. Fecal material is a major source of these pathogens, which can include bacteria, viruses, and parasites that are shed in the stool. These organisms can lead to gastrointestinal illnesses and can be transmitted via direct contact with fecal matter or indirectly through contaminated surfaces.

When dealing with fecal material, it is crucial to implement enteric precautions to minimize the risk of infection. This includes practices such as wearing appropriate personal protective equipment (PPE), using proper hand hygiene techniques, and ensuring that any surfaces that may have come into contact with fecal material are thoroughly cleaned and disinfected.

In contrast, while vomitus can also pose a risk of infection and may require specific precautions, the primary environmental containment and gastroenteric pathogen concerns are most adequately covered under enteric precautions when focusing on fecal material. Blood and airborne organisms are related to different kinds of precautions, such as standard precautions and respiratory precautions, respectively, which focus on different modes of transmission. Thus, when considering enteric precautions, fecal material is the primary concern and is rightly identified as the correct answer.