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Study 4 Test > LHR Modalities + The Needle/Probe > Flashcards

LHR Modalities + The Needle/Probe Flashcards

1
Q

The 1st removal of superfluous hair by Galvanic current was in what year?

A

1875

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2
Q

Who was the first person to perform Galvanic?

A

Dr. Charles Michel (opthamologist)

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3
Q

The Galvanic current may be available along the entire length of the needle, but it affects tissue only where it encounters:

A

Moisture

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4
Q

Sebum is an excellent what for Galvanic current?

A

Insulator

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5
Q

During an Electrolysis treatment, when a complete circuit is established, the current will flow from the source (epilator), through the client, and then what?

A

Return to the source

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6
Q

What does the negative pole produce in Galvanic electrolysis treatment?

A

Sodium Hydroxide (lye)

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7
Q

The positive pole produces what when using the Galvanic modality?

A

Hydrochloric acid

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8
Q

What produces an itchy, sweaty feeling in the palm of the hand during Galvanic electrolysis?

A

Hydrochloric acid

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9
Q

Phoresis is accomplished by means of what current?

A

Galvanic

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10
Q

Anaphoresis does what?

A

Irritates the skin, opens the pores, softens the skin

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11
Q

Cataphoresis does what?

A

Closes the pores, soothes the skin

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12
Q

The Galvanic modality affects permanent hair removal by:

A

Chemical decomposition

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13
Q

Heinrich Hertz is considered the 1st scientist to demonstrate the existence of what?

A

High-frequency waves

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14
Q

All are examples of high frequency current except?

A

Direct current

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15
Q

A unit of frequency or number of cycles per second is measured in?

A

Hertz

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16
Q

The ideal heating pattern:

A

Starts at the tip and progresses up the needle at a uniform rate

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17
Q

What is the frequency at which the FCC approves for epilators?

A

13.56 mHz

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18
Q

Which of the following types of current achieves electrocoagulation?

A

High Frequency

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19
Q

Causes of blanching (Thermolysis) include which of the following?

A

Overtreatment of skin + shallow insertions

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20
Q

The point at which the current intensity & duration application are established to destroy the papilla with minimal client discomfort?

A

Working point

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21
Q

What defines dessication?

A

Removing moisture

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22
Q

Different areas of the body have different moisture gradients which vary according to all except?

A

Diet

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23
Q

The Blend modality affect permanent hair removal by?

A

High Frequency + Galvanic current

24
Q

In the Blend modality, the chemical action is sped up by:

A

Heat

25
Q

Which area of the body is more susceptible to pitted scarring?

A

Face

26
Q

The Blend requires the use of both poles to:

A

Complete the circuit

27
Q

In operating the Blend epilator, the technician uses how many probes?

A

1

28
Q

When Galvanic current meets with body salts and tissue moisture it creates:

A

Sodium Hydroxide

29
Q

When using the Blend, the nerve endings are coagulated by the:

A

High Frequency current

30
Q

As the evacuated follicle contracts around the fluid, it exposes its entire target area, from the papilla to the hair germ cells to the effects of:

A

Lye

31
Q

An important factor in the use of the Blend:

A

Correctly proportioned relationship between currents

32
Q

Use of Galvanic and low intensity High Frequency current for hair removal is known as what?

A

the Blend

33
Q

The needle as an instrument in our work serves two purposes:

A

Probe and Electrode

34
Q

The insulted needle prevents the action of the current from:

A

Acting on the Epidermis

35
Q

Stainless steel needles used with the positive pole will leave what on the skin?

A

Black oxide marks

36
Q

A needle must be long enough to reach the full depth of a follicle of hair in:

A

Deepest Anagen

37
Q

The taper of a needle should fit:

A

Halfway into the pore

38
Q

A tapered or insulated needle is able to concentrate larger amounts of High Frequency at the lower portion of the follicle without:

A

Over-treatment of the Epidermis

39
Q

The tapered or insulated needle is best used with hairs that are what?

A

More shallow

40
Q

The tip of the needle when properly inserted should be:

A

To the depth of the papilla

41
Q

The most commonly used needles are:

A

Standard cylindrical

42
Q

The electrical performance of the needle is determined by what?

A

Length, diameter, and shape

43
Q

A brightly polished needle will enter the follicle:

A

with less resistance

44
Q

Damaged tweezers can be saved by sharpening with what?

A

Arkansas stone

45
Q

Which of the following does NOT affect the electrical performance of the needle?
a) diameter of the needle
b) length of the needle
c) shape of the needle
d) age of the needle

A

age of the needle

46
Q

The diameter of the needle should be at first selection:

A

Equal to the diameter of the hair.

46
Q

Prior to treatment, needle must be:

A

Sterile

47
Q

The greatest feature of the bulbous needle was that it allowed you to feel the:

A

Follicle bottom

48
Q

If the client feels a sticking upon insertion, you have

A

Made improper insertion

49
Q

There can be a danger on an insensitive area of the skin to:

A

Overtreat

50
Q

Always expect to insert deeper when entering a follicle containing a:

A

Terminal gray hair

51
Q

Which needle can be used in all 3 modalities?

A

Standard cylindrical

52
Q

The hottest spot of the needle when applying Thermolysis is:

A

Tip

53
Q

If you move from a #4 probe to a #2 probe, it is best to:

A

Decrease intensity

54
Q

A needle must be long enough to reach the full depth of a follicle of hair in:

A

Anagen-6

55
Q

An insulated probe is able to concentrate larger amounts of high frequency at the lower portion of the follicle without:

A

Overtreating the epidermis

Study 4 Test (9 decks)

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