Cosmetology Test Electricity and Light Therapy 2 — Questions and Answers
Question 1: What type of electrode is used with a high-frequency machine for direct surface application to the skin?
- Bipolar metal paddle electrode
- Glass electrode filled with gas (Correct answer)
- Carbon fiber electrode
- Silicone-tipped electrode
Correct answer: Glass electrode filled with gas
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?
- Positive pole (anode)
- Neutral pole
- Negative pole (cathode) (Correct answer)
- Alternating poles in sequence
Correct answer: Negative pole (cathode)
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?
- Mild dry skin or seasonal allergies
- Presence of a pacemaker or metal implants (Correct answer)
- Recent use of topical moisturizer
- History of seasonal acne breakouts
Correct answer: Presence of a pacemaker or metal implants
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?
- Chemical decomposition of muscle tissue
- Passive involuntary muscle contractions (Correct answer)
- Hardening of collagen fibers
- Increased melanin production
Correct answer: Passive involuntary muscle contractions
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?
- Permanently remove unwanted facial hair
- Drive water-soluble ionic products deeper into the skin (Correct answer)
- Dry out and reduce oily skin secretions
- Generate heat to open the pores manually
Correct answer: Drive water-soluble ionic products deeper into the skin
Iontophoresis uses galvanic current to push water-soluble, ionically charged product molecules deeper into the skin than topical application alone can achieve.
Question 6: Which color high-frequency electrode, containing argon gas, is most appropriate for oily or acne-prone skin?
- Violet or purple electrode (Correct answer)
- Orange or red electrode
- Blue electrode
- Clear or white electrode
Correct answer: Violet or purple electrode
The violet or purple electrode contains argon gas and produces germicidal ozone, making it most effective for treating oily or acne-prone skin conditions.
Question 7: What is the primary overall benefit of incorporating electrical current modalities into professional facial treatments?
- Replacing cleansing and exfoliation steps entirely
- Enhancing product penetration and stimulating natural skin functions (Correct answer)
- Permanently altering skin pigmentation
- Eliminating the need for professional-grade skincare products
Correct answer: Enhancing product penetration and stimulating natural skin functions
Electrical current modalities enhance product absorption, stimulate circulation, tone muscles, and support skin cell activity, making treatments more effective overall.
Cosmetology Test Electricity and Light Therapy 2
What type of electrode is used with a high-frequency machine for direct surface application to the skin?