Equipment Flashcards
What gloves are most protective from acrylates allergens such as dermabond?
Neoprene
What gloves are most protective from allergic responses from Glutaraldehyde
Nitrile and Butyl
What gloves are most protective from phenylenediamine allergies?
Neoprene & Nitrile
What is the name of this scalpel handle
Bard Parker #3
supposedly most used by dermatologists and has a ruler imprint
what is this scalpel handle called
Bard Parker #7
What kind of handle is this?
Beaver
What kind of handle is this
Siegel handle
what is the name of these forceps
Bishop Harmon forceps
What is the name of these sissors
Westcott or Castroviejo sissors
Is a hyfecator monpolar or bipolar
monopolar
is Hyfercation and Electro dessication mono teminal or Bi terminal
monoterminal
What would consider a bovie device mono or biterminal
biterminal needs a ground plate
electrocoagulation requires what three features
biterminal with grounding pad
low voltage high amperage moderately dampened
The greater the amperage more tissue heating
electrodessication (touches tissue) and electrofulguration (shoots spark) current characteristics
monoterminal
High voltage
Low amp
large dampened current (continuous unmodulated with rapid oscillation of the alternating current)
what are the features of electrosection (cutting)
Biterminal
low voltage
high amperage
undampened current
how do you produce the heat in electrocautery
direct current (DC battery) passes through a wire with high resistance creating heat
low voltage high amp
What is the difference between monopolar and monoterminal electrosurgery
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.
what is the name of these sissors.
O-Brien sissors
good for leveling of beveled edges
What is the name of these tissue forceps
Adson-Brown
multiple columns of interlocking teeth
What is the name of the forceps that have this forward angled teet and look like a Harmon-Bishop forceps
Castroviejo
The Harmon-Bishop teeth are a sharp right angle.
what is the name of this needle driver
Olsen-Heger
What is triclosan?
an antimicrobial added to vicryl, Monocryl (poliecaprone 25) and PDS (polyidxanone) presumably to decrease infections
in vicryl (polygactin 910+) what does the plus represent?
the addition of Triclosan
which is a larger needle P2 or P3
P2
In sutures what is Rapide
It is a type of Vicryl (polyglactin 910) that is rapidly absorbed. Tries to simulate gut sutures
what is the difference btw plasticity and elasticity
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.
what is a suture with great plasticity?
Prolene (Polyproplene)
what is a good suture with great elasticity
Novafil
Dry heat steralization requires how many hours at 121 centigrade.
6 hours
Dry heat sterilazation requires what temp for one hour to be effective
171 degrees centigrade.
what type of sterilization tends to dull instruments the most and the least?
Steam Autoclave most
Dry heat least
What are the settings for the steam autoclave for sterilzation
30 minutes at 2 atm at a temp of 121
What dulls intstuments more than dry heat but less than a steam autoclave?
Chemiclave
what chemicals are used in a chemiclave
acetone formaldehyde
Methyl ethyl ketone
Ethyl alcohol
how long does it take a gas sterilizer to do paper and polyvinyl chloride
1 day
7 days
Cold sterilization may not work for what?
bacterial spores
Hep B
What is the most common chemical used in cold sterilization
Glutaraldehyde
What is a xenograft
Animal to human (porcine grafts)
what is an Autograft
Graft taken from one area on the body and moved to another area.
What is an iosgraft?
Grafts between twins.
What is an allograft?
A graft between two different individuals (not done in dermatology)
Nerve and muscle stimulation occurs at below what hertz (Hz)
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
name the type of electrosurgical wave for each waveform below
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
What type of scalpel is this?
Shaw Scalpel
Does electrocautry
When vicryl has a + behind its name what does that mean?
It is coated with Triclosan
What is the only topical antibacterial antisceptic only covers Gram + not gram neg bacteria
Hexachlorophene
What is Benzalkonium Chloride inactivated by. (Found in skin products and contact solutions)
anionic compounds and soaps
What topical antibacterial is contrindicated in G6PD deficiency
Silver Sulfadiazine
Does Isopropyl Alcohol kill spores
No
Name two forms of indifferent electodes in electrosurgery
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
what is electrocautery
heating the probe with DC current
don’t confuse cautery with coagulation
MRI in working up skin cancer is best for what (4 things)
- perineural involvement
- Soft tissue involvement
- Brain and dural involvement
- Extraocular muscle involvement
CT scan in work of of skin cancer is good for what?
boney involvement
screen for lymph nodes
PET-CT scan is good for what in work up of skin cancer.
distant mets
Occult andenopathy of head/neck nodes
Tumor response to treatment
Tumor recurance in scar or node
Ultrasound is good for in skin cancer workup for what (2 things)
screening for superficial lymph node involvement
lymph node needle aspirations (guidence)
When to image a SCC at what level
IIb
