Chapter 4 Actual Test Flashcards
Which of the following is not a temporary effect of the positive pole of Galvanic current?
Softens tissues
The average distance an infrared lamp should be placed during a facial is about:
30 in
Before using ultraviolet light on a client, the skin or scalp should be:
Cleansed
Tesla, a high frequency current, the s known as the:
Violet Ray
A unit of electrical resistance is called a(n):
ohm
A constant electric current flowing in one direction is called a(n):
Direct current
High frequency and alternating current are characteristics of which type of electrotherapy?
Tesla
Which of the following breaks the flow of current when an overload occurre?
Circuit breaker
What temporary effect will a negative electrode pole produce when applying Galvanic current during an electrotherapy treatment?
Increase in blood flow
Any electrical activated by the flow of electric current such as a blow dryer is known as a(n):
Load
An ampere is a unit of electric:
Strength
Which of the following will produce a mild, stimulating sensation while using High Frequency current?
Slightly separating the electrode from the skin
The electrode that is negatively charged during an electrotherapy treatment is known as a(n):
Cathode
An alternative current which can be adjusted to different voltages to produce heat is:
High Frequence
The application of special currents that have a variety of effects on the skin are called:
Electrotherapy
Which of the following is a benefit of using infrared light during a facial?
Increase circulation
Bacteria that cause skin infection can be killed by:
Ultraviolet light
Which type of light can be broken into its individual wavelengths by a prism?
Combination
When using Galvanic current on clients in a salon, what precaution must a cosmetologist take in order to prevent injury to client?
Do not wrap an area having broken capillaries
The proses of forcing an acid or alkaline into the skin by applying current to the chemical is called:
Phoresis
Faradic current is used chiefly to cause:
Muscle contractions
T/F
Cataphoresis introduces water-soluble treatment products into the skin.
False
T/F
30% of sunlight is composed of invisible rays beyond red, which are called fluorescent.
False
T/F
The wavelengths that produce violet are the shortest in the voidable spectrum.
True
T/F
The four types of currents used in electrotherapy are Galvanic, Faradic, Sinusoidal, and direct.
False
