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A conductor is a substance which readily transmits an electric current.
True
What is an Ohm?
a unit of electrical resistance
What is an Ampere?
a unit of electrical strength
What is a Volt?
a unit of electrical pressure
What is a Watt?
the measurement of how much electric energy is being used
What is a milliampere?
1/1000th of an ampere
What are the four safety issues to follow when dealing with fuses
use a new fuse with proper rating,stand on a dry surface,keep hands dry,turn off and unplug the machine
What are some safety issues to follow when dealing with electricity? Choose all that apply:
use only one plug in each outlet
do not handle electrical equipment with wet hands
What are considered general electrical contra-indications? Choose all that apply:
pregnancy
contagious skin diseases or disorders
pacemaker
epilepsy
These are composed of twisted metal threads covered with rubber.
Electric wires
A complete circuit is:
the path of an electric current from the generating source through conductors and back to its original source
Choose all of the following that are examples of conductors
the human body
most metals, esp. copper
Electricity is a form of energy that when in motion, produces magnetic, chemical or heat effects
True
A non-conductor is a substance that readily transmits an electric current.
False
Choose all of the following that are examples of a non-conductor.
Rubber
Silk
A.C. stands for alternating conductor.
A.C. stands for alternating conductor.
D.C. stands for direct current.
True
What is the purpose of conducting cords?
they carry the current form the machine to the electrodes
What is an electrode?
a conductor and applicator of electricity to the face or body
What is a milliampermeter?
an instrument used for measuring the rate of flow of an electric current
What is the purpose of galvanic current?
To produce chemical changes in the skin cells
What are the two terms used for the second process in a galvanic treatment?
iontophoresis
cataphoresis
When performing a galvanic current treatment, you can do the second process alone, without first doing the first process.
True
The second process in a galvanic treatment uses the negative polarity.
False
When performing the second process in a galvanic treatment what is the name of the electrode the esthetician is using?
Anode
When performing either process in a galvanic treatment what is the name of the electrode the client is holding?
Indifferent electrode
The second process in a galvanic treatment produces an acidic reaction.
True
What are the four main beneficial effects of the second process in a galvanic treatment?
soothes the superficial nerve endings
decreases the blood circulation
produces an acidic reaction
hardens the skin/restores the acid mantle
What is the name of the chemical being produces during the first process in a galvanic treatment?
Sodium hydroxide
What is the name of the chemical being produced during the second process in a galvanic treatment?
Hydrochloric acid
What skin types and/or conditions are indicated for only the second process in a galvanic treatment? Choose all that apply:
dry skin
mature skin
sun damaged skin
dehydrated skin
What are some contraindications for a galvanic treatment? Choose all that apply:
metal plates or pins
pregnancy
Pacemaker
What are some safety precaution for working with galvanic current? Choose all that apply:
keep the electrodes moving, don't leave them sitting in one spot
Keep the skin moist
What are the two terms that are used for the first process in a galvanic treatment?
anaphoresis
disincrustation
What polarity is used in the first process for a galvanic current treatment?
Negative
When performing the first process in a galvanic treatment what is the name of the electrode the esthetician is using?
Cathode
When performing a galvanic current treatment, if you do the first process, you must always follow it with the second process.
True
How do you clean the metal galvanic electrode tips after your treatment?
wash with soap and water, dry, soak in the cold sterile solution, rinse, dry and put away
What are the four main beneficial effects of Anaphoresis?
sofens tissue/breaks down the acid mantle
produces an alkaline reaction
increases blood circulation
stimulates superficial nerve endings
What skin types and/or conditions are best indicated for the first process of a galvanic treatment? Choose all that apply:
mild acne
Oily skin
Comedomes
What type of current does High Frequency use?
Alternating
Who holds the electrode during a direct high frequency treatment?
The esthetician
What skin types and/or conditions best benefit from direct high frequency? Choose all that apply:
papules and pustules
oily skin
combination skin
What are some beneficial effects of direct high frequency?Choose all that apply:
increases lymphatic circulation
generates ozone which is germacidal
increases cellular metabolism
Who holds the electrode during an indirect high frequency treatment?
The client
What skin types and/or conditions best benefit from indirect high frequency? Choose all that apply:
Dehydrated skin
Dry skin
What are some beneficial effects of indirect high frequency?Choose all that apply:
Increases sebaceous gland activity
Increases lymphatic circulation
It is advisable to put talc on a client's hands during an indirect high frequency treatment to help keep their palms dry.
True
Sparking a pustule after the skin has been cleansed, will destroy germs and bacteria and will aid in drying and healing the blemish.
True
How should the glass high frequency electrodes be cleaned after use?
they should be wiped with a solution of soap and water on the working tips only, rinsed, dried, soaked in a disinfectant for 10 minutes (just the tips), rinsed, dried and put away in the storage container
The high frequency electrodes should be submerged in water to wash them.
False
High frequency current is capable of changing polarity 1,000 times per second. So it basically has no polarity.
True
What are some contraindications for a high frequency current treatment?Choose all that apply:
Pregnancy
Pacemaker
What is the primary action of High Frequency current?
Thermal or heat producing
What are some other names that high frequency may be referred to as? Choose all that apply:
Sinusoidal current
Tesla pulse current
What are the physiological effects of high frequency?
Stimulating
Soothing
What type of electrode has been banned in the US? And why?
Quartz, because it contains mercury
When an electrode lights up a pinkish-orange color what gas does it contain?
Neon
When an electrode lights up a bluish-violet color what gas does it contain?
Argon
What are high frequency electrodes made of?
Glass and metal with gasses inside