New York Nail Technician License Practice Test

What type of disinfectant solution requires extra care to avoid skin contact?

1. Alkali

2. Alcohol

3. Phenolic

4. Quaternary ammonium compound

The correct answer is: Phenolic

Phenolic disinfectants are known for their effectiveness in killing a broad range of bacteria, viruses, and fungi. However, they are also highly concentrated solutions that can be caustic and irritating to the skin. This means that special care is required when handling them, as skin contact can lead to chemical burns or severe irritation. In contrast, while alcohol is also a potent disinfectant, it typically evaporates quickly and is less harmful upon brief skin contact, making it more manageable for use without significant risk. Quaternary ammonium compounds, though sometimes causing mild irritation, are generally safe to use with fewer precautions than phenolic disinfectants. Alkali solutions can also be hazardous, but the specific regard for skin contact with phenolic substances makes them particularly notable in this context. Thus, the necessity of exercising extra caution with phenolic disinfectants is paramount in a nail salon environment where skin exposure could lead to adverse reactions.