Surgery (1-6) Flashcards
4 overarching reasons to do surgery
diagnostic, prophylactic, therapeutic, palliative
-lysis means…
breakdown
-itis means…
inflammation
-megaly means…
enlargement
-rrhage means…
bursting forth
-rrhea means…
flow
-sclerosis means…
hardening
-stenosis means…
narrowing
-malacia
softening
-algia means…
pain
-dynia means…
pain
-coele means…
cavity/space
-ectasia means…
dilation
-plegia means…
paralysis
-ptosis means…
displacement
-ptysis means…
spitting
-centesis means…
puncture to remove
-desis means…
fusion
-ectomy means…
excision
-stasis means…
stopping or controlling
-stomy means…
new opening
-otomy means…
process of cutting into
-plasty means…
reshaping or reconstructing
-pexy means…
surgical fixation in one place
-rrhaphy means…
join by suture
-plication means…
folding of a structure onto itself
cystocentesis means…
drain bladder with a needle
enterotomy means…
cut into intestine
name Halstead’s 6 principles of surgery
- aseptic technique
- sharp anatomic dissection
- gentle tissue handling
- careful hemostasis
- avoid tension
- obliteration of dead space
what are the 3 reasons for Halstead’s principles of surgery
- reduced dehiscence
- rapid wound healing
- prevention of infection
name the 5 features/steps of aseptic technique
- theater preparation
- instrument prep
- surgeon prep
- patient prep
- maintain asepsis
what can excessive tension lead to
dehiscence (wound bursting open)
why is the obliteration of dead space important?
minimize serum and hematoma formation;
maximize healing
why is careful hemostasis important in surgery
minimize hematoma and contusion
these are the primary cutting instruments used to incise tissues
scalpels
this scalpel blade is the most commonly used in small animal surgery for incision and excision of tissues
no. 10 blade
this scalpel blade is ideal for stab incisions into fluid-filled structures or organs
no.11 blade
this scalpel blade is small and used for precise incisions in smaller tissues
no.15 blade
this grip of a scalpel allows shorter, finer, and more precise incisions; scape is help at 30 degrees to tissue
pencil grip
this grip of a scalpel offers the best accuracy and stability for long incisions
fingertip grip
these needle holders are ratchet, used for medium to coarse needles
Mayo-Hegar
these needle holders are ratchet with scissor blades that allows suture to be tied and cut with the same instrument
Olsen-Hegar
these needle holders have a ratchet lock at the proximal end
Mathieu
these needle holders have a spring and lock mechanism
Castroviejo
name the needle holder grip
no fingers are placed in the rings, and the upper ring rests against the ball of the thumb
palmed grip
name the needle holder grip
the upper ring rests on the ball of the thumb and the 4th finger is inserted through the lower ring
thenar grip
name the needle holder grip
held with the tips of the thumb placed through the upper ring and the 4th finger through the lower ring. the 2nd finger rests on the shanks near the fulcrum. rings should be kept near the distal finger joint
tripod grip
name the needle holder grip
thumb and 2nd finger rest on the shafts of the needl holder
pencil grip
name the surgical instrument
variety of shapes, sizes and weights classified according to type of point, blade shape, or cutting edge
scissors
name the type of scissor
designed for sharp and blunt dissection or incision of finer tissues
Metzenbaum
name the type of scissor
for cutting dense, heavy tissue, such as fascia
Mayo
name the type of scissor
used to cut sutures but these are separate instruments from those used to cut tissue
Heavy scissors
name the type of scissor
have a concavity on one blade to gently hook the suture away from the skin and facilitate easy removal
Skin suture scissors
name the type of scissor
fine, precise cuts, opthalmic procedures and otehr meticulous surgeries, such as perineal urethrostomy
Tenotomy scissors or Iris scissors
what grip should you use with scissors
tripod grip
name the surgical instrument
tweezer-like, non-locking instruments used to grasp tissue; tips may be pointed, flat, round, smooth, or serrated
tissue (thumb) forceps
which hand should tissue (thumb) forceps be held in?
non-dominant hand
what grip should be used for tissue (thumb) forceps
pencil grip
name the type of hemostat forcep
has transverse serrations that extend the entire length of the jaws
crile forceps
name the type of hemostat forcep
transverse serrations extend only over the diatal portion of the jaws
Kelly forceps
name the type of hemostat forcep
larger, crushing forceps often used to control large tissue bundles, such as during an ovariohysterectomy
Rochester-Carmalt forceps
name the term
surgical excision of part of the stomach
gastrectomy
define the term
nephrotomy
incision into a kidney
define the procedure
paracentesis
perforation or tapping of a body cavity with a needle
this is the exclusion of all pathogenic microorganisms before they can enter an open surgical wound or contaminate a sterile field during surgery
surgical asepsis
the destruction of all micro-organisms on all inanimate objects
sterilization
this is the destruction of pathogenic organisms on inanimate objects
disinfection
this is the destruction or inhibition of growth of most pathogenic micro-organisms on animate organisms
antisepsis
name 3 sources of contamination that threaten surgical field
- animal
- inanimate
- airborne
name the 3 hand scrubbing technique options for surgery
- timed anatomic brush stroke method
- counted brush stroke method
- sterilium
what parts of the surgical gown is considered sterile
front of gown from chest level to sterile field, sleeves from 2” below elbow to cuff
what skin antiseptic has the most rapid kill rates
alcohols
this option for wrapping surgical packs is soft, reusable, inexpensive and absorbent BUT penetrative to bacteria
woven
this option for wrapping surgical packs is an effective barrier and water resistant
non-woven
name the method of sterilization
for heat-tolerant medical supplies, instruments and packaging; temp, pressure and exposure time is critical; rapid destruction of all known microorgansisms
steam sterilization (autoclave)
name the method of sterilization
for disposable items as cannot re-sterilize after use; cobalt-60 gamma rays, electron accelerators, expensive
ionizing radiation
list some characteristics of the ‘ideal’ suture material
(total of 9)
- good handling
- low tissue reactivity
- non-capillary
- not support bacterial growth
- knot securely
- absorb predictably
- easy to sterilize
- non-carcinogenic/non-allergenic
- affordable