Cosmetology Test Electricity and Light Therapy 2

Question 1

What type of electrode is used with a high-frequency machine for direct surface application to the skin?

Accepted Answer

Glass electrode filled with gas

Answer

High-frequency machines use glass electrodes filled with gases such as neon or argon, which glow and produce ozone when current passes through them during skin application.

Question 2

During desincrustation with galvanic current, which pole is placed on the client's face to soften and emulsify sebum in the pores?

Accepted Answer

Negative pole (cathode)

Answer

The negative pole (cathode) produces an alkaline chemical reaction that softens and emulsifies sebum, making it easier to remove clogged debris from pores.

Question 3

Before performing any electrical facial treatment, what client health condition must be screened for and is considered an absolute contraindication?

Accepted Answer

Presence of a pacemaker or metal implants

Answer

Pacemakers can be disrupted by electrical currents, and metal implants can cause burns or interference; both conditions are absolute contraindications for electrical treatments.

Question 4

What physical effect does faradic current produce in the muscles during a facial treatment?

Accepted Answer

Passive involuntary muscle contractions

Answer

Faradic current causes passive involuntary muscle contractions, which are used in facial toning treatments to firm and strengthen facial muscles without client effort.

Question 5

What does iontophoresis use galvanic current to accomplish during a facial service?

Accepted Answer

Drive water-soluble ionic products deeper into the skin

Answer

Iontophoresis uses galvanic current to push water-soluble, ionically charged product molecules deeper into the skin than topical application alone can achieve.

Cosmetology Test Practice Test

Cosmetology Test Practice Test

Cosmetology Test Electricity and Light Therapy 2