Question

in a health care setting, which of the following is the minimum amount of alcohol content that can be used in an alcohol - based sanitizer? 40% 55% 60% 90%

Explanation:

Alcohol - based sanitizers need a sufficient alcohol concentration to effectively kill microorganisms. According to health care guidelines, a minimum of 60% alcohol content is required for proper disinfection. Lower concentrations (like 40% or 55%) may not be effective enough as they do not denature microbial proteins and disrupt lipid membranes adequately. Higher concentrations (like 90%) can evaporate too quickly before proper disinfection occurs.

Answer:

60%