California Barber Written ExamSafety and HealthMedium
A barber is preparing to clean and disinfect their shears after a service. Which of the following steps is crucial to perform immediately after physical cleaning but before immersion in disinfectant solution?
- ARinse the shears thoroughly with hot water.
- BApply a lubricating oil to the shears.
- CDry the shears completely to prevent dilution of the disinfectant.
- DSubmerge the shears in an ultrasonic cleaner.
Show answer & explanationAnswer & explanation
Correct answer: C. Dry the shears completely to prevent dilution of the disinfectant.
After physical cleaning (e.g., with soap and water), it is crucial to dry implements completely before immersion in disinfectant. Water can dilute the disinfectant, rendering it ineffective at the manufacturer's recommended concentration.
Why the other options are wrong
- A. Rinsing is part of physical cleaning, but drying is the next critical step before disinfection.
- B. Lubricating oil is typically applied after disinfection and drying for maintenance, not before.
- D. An ultrasonic cleaner is a method of physical cleaning, often used before manual scrubbing and drying, not after cleaning and immediately before disinfectant immersion.
Implement Disinfection Preparation
Proper preparation of implements, including thorough drying after cleaning, is essential to ensure the efficacy of disinfectant solutions.
- Water dilutes disinfectants, reducing their strength.
- Drying prevents rust on metal implements.
- Ensures disinfectant reaches all surfaces at full concentration.
Memory trick: Clean first, then dry, then dip to kill the germs.