Question

you are preparing a bleach and water solution for disinfection of your ems equipment. you should use a dilution ratio of: 1:1000, 1:1, 1:100, 20:1

Explanation:

According to standard disinfection guidelines for EMS (Emergency Medical Services) equipment, a common and appropriate dilution ratio for bleach - water solutions is 1:100. A 1:1 ratio is too concentrated and may damage equipment and be hazardous. A 1:1000 ratio is too dilute for effective disinfection in most cases for EMS equipment. A 20:1 ratio (bleach:water) is also not a standard or recommended ratio for this purpose.

Answer:

1:100