Lab: Suture, Bandaging and Asepsis

Question 1

T/F: Suture should be as strong as the tissue being sutured, not stronger nor weaker.

Answer 1

True

Question 2

What is the measurement of a suture’s ability to resist breakage?

Answer 2

Tensile strength

Question 3

Where does most suture break?

Answer 3

At the knot (= weakest point)

Question 4

What is the ability of fluid or bacteria to wick along suture?

Answer 4

Capillarity

Question 5

Absorbable suture is suture that looses most of its tensile strength by ___ days.

Answer 5

60

Question 6

How is suture treated to decrease tissue drag?

Answer 6

Coating

Question 7

What is the trade name for Poliglecaprone 25?

Answer 7

Monocryl

Question 8

T/F: Chromic gut is absorbable.

Answer 8

True

Question 9

What is the trade name for Polyglactin 910? What type of suture is it?

Answer 9

Vicryl

Synthetic braided absorbable

Question 10

What is Vicryl Plus coated with?

Answer 10

Tricolsan (antimicrobial)

Question 11

What is the trade name for polyglycolic acid? What type of suture is it?

Answer 11

Dexon

Synthetic absorbable braided

Question 12

What are your options for quickly absorbed suture to close non-infected bladders?

Answer 12

Monocryl (Poliglecaprone 25)

Caprosyn (Polyglytone 6211)

Question 13

What is the trade name for Glycomer 631? What type of suture is it?

Answer 13

Biosyn

Synthetic monofilament absorbable

Question 14

Which suture, similar to PDS, maintains strength for 6 weeks? For how long does PDS maintain 50% TS?

Answer 14

Maxon (Polyglyconate)

6 months

Question 15

Which suture types absorb in a short amount of time? Intermediate? Long? Include what type of suture is it.

Answer 15

Short: Vicryl RAPIDE (polyglactin 910- synthetic braided), Monocryl (poligelcaprone 25- synthetic monofilament), Caprosyn (polyglytone 6211- synthetic monofilament)

Intermediate: Vicryl (polyglactin 910- synthetic braided), Biosyn (glycomer 631- synthetic monofilament)

Long: PDS (polydioxanone - synthetic monofilament), Maxon (polyglyconate- synthetic monofilament)

Question 16

What is the problem with using silk suture? When is it used?

Answer 16

Highly inflammatory

For certain cardiovascular surgery

Question 17

What is the trade name for polypropylene? What type of suture is it?

Answer 17

Prolene

Synthetic non-absorbable monofilament

Question 18

What is the trade name for nylon? What type of suture is it?

Answer 18

Ethilon

Synthetic non-absorbable monofilament

Question 19

What is the trade name for polymerized caprolactam? What organ is it exclusively used in?

Answer 19

Vetafil

Skin

Question 20

What is the brand name for polyester? What type of suture is it?

Answer 20

Ethibond

Braided synthetic coated non-absorbable

Question 21

What is the part of the eyeless needle called where the suture is attached?

Answer 21

Swage

Question 22

What type of needle is this?

Answer 22

J needle

Question 23

What is the most commonly used curved needle size?

Answer 23

1/2 circle

(3/8 circle also common)

Question 24

Which type of needle can you NOT use for skin?

Answer 24

Taperpoint

Question 25

What type of needle dissects through friable tissue without cutting?

Answer 25

Blunt point

Question 26

What needle is typically used for skin?

Answer 26

Reverse cutting

Question 27

How do bandages promote healing?

Answer 27

By maintaining a CO2/acid environment initially at the level of the wound and disscociating O2 from Hb to increase oxygenation

Question 28

Which layer of the bandage is used to provide support and decrease dead space?

Answer 28

Secondary

Question 29

What risk arises if exudate reaches the tertiary layer of a bandage?

Answer 29

Bacterial strike through

Question 30

What part of the bandage may you leave in place if you change the bandage?

Answer 30

Stirrups

Question 31

What 2 techniques can you use to prevent a thoracic bandage from slipping?

Answer 31

Tape overlay Torso strap

Question 32

What type of bandage is this?

Answer 32

Tie Over

Question 33

What type of bandage is commonly used for a degloving injury?

Answer 33

Modified Robert Jones

Question 34

In which direction do you need to apply cast padding?

Answer 34

Distal to proximal

Question 35

What bandage is used primarily for initial fracture stabilization distal to the elbow or stifle?

Answer 35

Robert Jones

Question 36

What type of split is used to temporarily splint fractures or luxations proximal to or including the elbow or stifle?

Answer 36

Spica splint

Question 37

What type of bandage is used to create a non-weight-bearing forelimb?

Answer 37

Velpeau spling | (*Velpeau for elbow*)

Question 38

Which bandage is used to create a non-weight-bearing hind limb, provides femoral abduction, and inward hip rotation?

Answer 38

Ehmers sling (aka Figure Eight sling) (*Ehmers for femurs)*

Question 39

Which bandage type that creats a NWB hind limb allows for limited motion? Why do you want limited motion?

Answer 39

Robinson Sling To prevent/meliorate disuse atrophy and promote healing

Question 40

What is used under a full leg cast to wick away moisture and protect the skin?

Answer 40

Stockinette

Question 41

_**A**sepsis_ or _**Anti**sepsis_? 1. Prevent wound contamination by destroying organisms before they enter the wound 2. Killing of bacteria after they have entered the wound

Answer 41

1. _**A**SEPSIS:_ _Prevent_ wound contamination by destroying organisms _before they enter the wound_ 2. **_ANTI_**_SEPSIS_: Killing of bacteria _after_ they have entered the wound

Question 42

Disinfection or Sterilization? 1. The process of destroying all organisms; bacteria, fungi, spores. 2. Use of germicidal substances to kill most micoorganisms.

Answer 42

1. **_Sterilization:_** The process of destroying **all** organisms; bacteria, fungi, spores. 2. **_Disinfection:_** Use of germicidal substances to kill **most** micoorganisms.

Question 43

T/F: Most surgical wounds contain bacteria by the time the procedure is completed.

Answer 43

True

Question 44

What is the minimum contact time for surgical site prep scrub?

Answer 44

5 minutes

Question 45

What is the primary aerial bacteria source during surgical prep?

Answer 45

You (surgical personnel)

Question 46

Which sterilizaton method is most common and causes the destruction or denaturation of cellular proteins?

Answer 46

Steam sterilization- Autoclaving

Question 47

What is a disadvantage of using an autoclave to sterilize surgical instruments, such as scissors?

Answer 47

It **dulls** sharp instruments

Question 48

How long do you need to aerate gas permiable items after chemical sterilization with ethylene oxide?

Answer 48

24 hours

Question 49

What chemical sterilization agent can be used for scopes and other equiptment that cannot be sterilizaed by other methods?

Answer 49

"Cold" desinfection with **Glutaraldehyde** *(Sterilization in 10 hours, disinfection in 10 min)*

Question 50

Match the sterile pack shelf life with the packaging: 1 year 9 months 10 weeks 8 weeks 3 weeks 1. 2 layers: polyethylene + muslin 2. 2 layers: crepe paper + muslin 3. 1 layer: crepe paper 4. Heat-sealed paper or transparent plastic pouch 5. 2 layers: double muslin wrap

Answer 50

1. 2 layers: polyethylene + muslin: **9 months** 2. 2 layers: crepe paper + muslin: **10 weeks** _3. 1 layer: crepe paper: **3 weeks** *SHORTEST*_ _4. Heat-sealed paper or transparent plastic pouch: **1 year** *LONGEST*_ 5. 2 layers: double muslin wrap: **8 weeks**

Question 51

What is the most secure method of vessel occlusion?

Answer 51

Ligatures

Question 52

What scalpel handle number and corresponding blade number is used in small animals? Large animals?

Answer 52

Small #3, 10 blades Large #4, 20 blades

Question 53

Which scalpel grip is best for short precise incisions? Which is best for long incisions?

Answer 53

Short: Pencil grip Long: Fingertip grip

Question 54

What scissor grip that with practice is easier than hyperextending the wrist or trying to cut with the non-dominant hand to cut toward yourself?

Answer 54

Backhand grip