NIC Barber Written (Theory) ExamFacial and Skin Care ServicesMedium
A barber is preparing to use a high-frequency machine during a facial treatment. What is the primary safety precaution that must be taken regarding the client's jewelry?
- AAdjust the machine's intensity to a lower setting if jewelry is present.
- BInstruct the client to remove all metal jewelry.
- CEnsure all metal jewelry is covered with a towel.
- DConfirm the jewelry is made of non-conductive materials.
Show answer & explanationAnswer & explanation
Correct answer: B. Instruct the client to remove all metal jewelry.
Metal jewelry can act as a conductor for the high-frequency current, leading to burns or shock. Therefore, all metal jewelry must be removed from the client's body prior to using the machine.
Why the other options are wrong
- A. Adjusting intensity is not a substitute for removing metal; a lower setting still poses a risk if current is conducted through metal.
- C. Covering jewelry is insufficient; the high-frequency current can still interact with the metal.
- D. It is impractical and unsafe to assume or test jewelry materials; removal is the safest universal precaution.
High-Frequency Machine Safety
The use of an electrical current to produce a gentle warming effect, requiring specific safety protocols to prevent injury.
- Generates ozone and heat to stimulate circulation and provide an antiseptic effect.
- Strictly requires removal of all metal jewelry from client and barber.
- Contraindicated for clients with pacemakers, epilepsy, or pregnancy.
Memory trick: High-Frequency = Hands-Off all Heavy Metal.