Category 1
When using ultraviolet light on a client, begin with a short exposure time of ____ minute(s) with the exposure gradually increasing over a period of days to 7 to 8 minutes.
2 to 3
What is another name for light therapy?
Phototherapy
What color has the shortest wavelength?
Violet
_____ is an extremely low level of electricity that mirrors the body's natural electrical impulses.
Microcurrent
The ____ indicates the negative or positive pole of an electric current.
polarity
Which devise is a practical solution for delivering light therapies associated with scalp and skin treatments?
Therapeutic lamps
_____light rays are used in ultraviolet germicidal irradiation to inactivate or destroy microorganisms.
UVC
____ refers to all of the forms of energy (or radiation) that exist.
Electromagnetic spectrum
Galvanic current is used to introduce ____ products into the skin in a process called iontophoresis.
water-soluble
A ____ in an applicator used to direct electric currents from a machine to a client's skin.
electrode
____light reduces acne and bacteria.
Blue
UVA rays are used in tanning booths and ____ skin tissue.
penetrate deeply into
Which modality would be used to improve glandular activity and increase the absorption of nutrients?
Tesla high-frequency currents
The process that uses ____ to facilitate deep pore cleansing is desincrustation.
microcurrent
The different types of electric currents used in ____ are known as modalities.
electrotherapy
Which device used in light therapy helps to reduce acne, increase skin circulation, and improve collagen content in the skin?
Light-emitting diode.
Ultraviolet (UV) rays can kill microorganisms and cause _____ to happen more quickly than visible light while producing less heat.
chemical reactions
Which modality would be used to increase muscle tone and restore elasticity?
Microcurrents
____ produces chemical changes when passed through body tissues and fluids.
Galvanic current
Do not touch ____ while using an electrical appliance.
metal
Which device used in light therapy uses electromagnetic radiation and medium for hair removal and various skin treatments?
Lasers
About ____ percent of natural sunlight is made up of visible light.
35
The ____ produces heat.
Tesla High-frequency current
In electrotherapy, the _____ is the positive pole.
anode
What is an outlet that senses imbalances within an electric circuit?
Ground fault interrupter