Veterinary Technician Practice Exam

Which disinfectant should be used with caution around cats?

1. Chlorine bleach

2. Quaternary ammonium compounds

3. Phenol

4. Hydrogen peroxide

The correct answer is: Phenol

The correct answer is phenol. Phenolic disinfectants are known to be toxic, particularly to cats, as they can cause severe health issues if they come into contact with the skin or are ingested. Cats lack certain hepatic enzymes that are necessary to effectively metabolize phenols, making them more vulnerable to the toxic effects. As a result, exposure can lead to symptoms such as vomiting, diarrhea, and central nervous system disturbances. While other disinfectants may also require caution depending on the situation and the specific animal species involved, phenol stands out as particularly hazardous for feline patients due to their unique metabolic pathways. Careful consideration and alternative disinfectant options should be evaluated when working in environments where cats are present.