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Derm Surg questions > Equipment > Flashcards

Equipment Flashcards

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Dermatology Board Prep flashcards
1
Q

What gloves are most protective from acrylates allergens such as dermabond?

A

Neoprene

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2
Q

What gloves are most protective from allergic responses from Glutaraldehyde

A

Nitrile and Butyl

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3
Q

What gloves are most protective from phenylenediamine allergies?

A

Neoprene & Nitrile

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4
Q

What is the name of this scalpel handle

A

Bard Parker #3

supposedly most used by dermatologists and has a ruler imprint

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5
Q

what is this scalpel handle called

A

Bard Parker #7

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6
Q

What kind of handle is this?

A

Beaver

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7
Q

What kind of handle is this

A

Siegel handle

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8
Q

what is the name of these forceps

A

Bishop Harmon forceps

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9
Q

What is the name of these sissors

A

Westcott or Castroviejo sissors

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10
Q

Is a hyfecator monpolar or bipolar

A

monopolar

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11
Q

is Hyfercation and Electro dessication mono teminal or Bi terminal

A

monoterminal

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12
Q

What would consider a bovie device mono or biterminal

A

biterminal needs a ground plate

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13
Q

electrocoagulation requires what three features

A

biterminal with grounding pad

low voltage high amperage moderately dampened

The greater the amperage more tissue heating

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14
Q

electrodessication (touches tissue) and electrofulguration (shoots spark) current characteristics

A

monoterminal

High voltage

Low amp

large dampened current (continuous unmodulated with rapid oscillation of the alternating current)

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15
Q

what are the features of electrosection (cutting)

A

Biterminal

low voltage

high amperage

undampened current

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16
Q

how do you produce the heat in electrocautery

A

direct current (DC battery) passes through a wire with high resistance creating heat

low voltage high amp

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17
Q

What is the difference between monopolar and monoterminal electrosurgery

A

monopolar refers to the tip of the electrode (if it is forceps it is bipolar)

monoterminal refers to not using a ground plate, biterminal means there is a ground plate.

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18
Q

what is the name of these sissors.

A

O-Brien sissors

good for leveling of beveled edges

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19
Q

What is the name of these tissue forceps

A

Adson-Brown

multiple columns of interlocking teeth

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20
Q

What is the name of the forceps that have this forward angled teet and look like a Harmon-Bishop forceps

A

Castroviejo

The Harmon-Bishop teeth are a sharp right angle.

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21
Q

what is the name of this needle driver

A

Olsen-Heger

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22
Q

What is triclosan?

A

an antimicrobial added to vicryl, Monocryl (poliecaprone 25) and PDS (polyidxanone) presumably to decrease infections

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23
Q

in vicryl (polygactin 910+) what does the plus represent?

A

the addition of Triclosan

24
Q

which is a larger needle P2 or P3

A

P2

25
Q

In sutures what is Rapide

A

It is a type of Vicryl (polyglactin 910) that is rapidly absorbed. Tries to simulate gut sutures

26
Q

what is the difference btw plasticity and elasticity

A

plasticity is the ability to retain a new length with swelling and retail tensile strength

elasticity is the ablitlity to regain it’s orginial structure and length after it is streched from swelling.

27
Q

what is a suture with great plasticity?

A

Prolene (Polyproplene)

28
Q

what is a good suture with great elasticity

A

Novafil

29
Q

Dry heat steralization requires how many hours at 121 centigrade.

A

6 hours

30
Q

Dry heat sterilazation requires what temp for one hour to be effective

A

171 degrees centigrade.

31
Q

what type of sterilization tends to dull instruments the most and the least?

A

Steam Autoclave most

Dry heat least

32
Q

What are the settings for the steam autoclave for sterilzation

A

30 minutes at 2 atm at a temp of 121

33
Q

What dulls intstuments more than dry heat but less than a steam autoclave?

A

Chemiclave

34
Q

what chemicals are used in a chemiclave

A

acetone formaldehyde

Methyl ethyl ketone

Ethyl alcohol

35
Q

how long does it take a gas sterilizer to do paper and polyvinyl chloride

A

1 day

7 days

36
Q

Cold sterilization may not work for what?

A

bacterial spores

Hep B

37
Q

What is the most common chemical used in cold sterilization

A

Glutaraldehyde

38
Q

What is a xenograft

A

Animal to human (porcine grafts)

39
Q

what is an Autograft

A

Graft taken from one area on the body and moved to another area.

40
Q

What is an iosgraft?

A

Grafts between twins.

41
Q

What is an allograft?

A

A graft between two different individuals (not done in dermatology)

42
Q

Nerve and muscle stimulation occurs at below what hertz (Hz)

A

10,000 Hz

Standard outlets are 50-60 Hz and have to be converted up for medical electrical devices (more cycles per sec)

most medical devices are 300,000 Hz or higher

43
Q

name the type of electrosurgical wave for each waveform below

A

A Electrodessication and Electrofulguration high voltage low amp damped

B. Electrosection with coagulation low voltage high amp partially damped

C. Electrocoagulation low voltage, high amp moderately damped

D. Electosection low voltage, high amped, undamped

44
Q

What type of scalpel is this?

A

Shaw Scalpel

Does electrocautry

45
Q

When vicryl has a + behind its name what does that mean?

A

It is coated with Triclosan

46
Q

What is the only topical antibacterial antisceptic only covers Gram + not gram neg bacteria

A

Hexachlorophene

47
Q

What is Benzalkonium Chloride inactivated by. (Found in skin products and contact solutions)

A

anionic compounds and soaps

48
Q

What topical antibacterial is contrindicated in G6PD deficiency

A

Silver Sulfadiazine

49
Q

Does Isopropyl Alcohol kill spores

A

No

50
Q

Name two forms of indifferent electodes in electrosurgery

A

when using biterminal forcepts one tine acts as a return electrode (indifferent)

The pad (indeferent plate) returning current from the patient back to the device

51
Q

what is electrocautery

A

heating the probe with DC current

don’t confuse cautery with coagulation

52
Q

MRI in working up skin cancer is best for what (4 things)

A
  1. perineural involvement
  2. Soft tissue involvement
  3. Brain and dural involvement
  4. Extraocular muscle involvement
53
Q

CT scan in work of of skin cancer is good for what?

A

boney involvement

screen for lymph nodes

54
Q

PET-CT scan is good for what in work up of skin cancer.

A

distant mets

Occult andenopathy of head/neck nodes

Tumor response to treatment

Tumor recurance in scar or node

55
Q

Ultrasound is good for in skin cancer workup for what (2 things)

A

screening for superficial lymph node involvement

lymph node needle aspirations (guidence)

56
Q

When to image a SCC at what level

A

IIb

Derm Surg questions (26 decks)

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