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Surgery Lab Quiz > Suture > Flashcards

Flashcards in Suture Deck (27):
1

What is the function of suture?

Hold tissue in apposition until wound healing progresses

2

What are the 4 properties of suture?

Tensile strength
Knot strength
Piability
Capillarity

3

What is tensile strength?

How strong suture is and ability to resist breakage

4

The larger the suture size the ____the tensile strength

Greater

5

What is the weakest point of the suture?

Knot

6

The larger the diameter of suture the____ secure the knot

Less

7

What are the length of suture tags?

3-5 mm internal

8

What is capilarity?

How much suture wicks/absorbs

9

What suture has high vs. low capilarity?

High: woven suture (vicryl)
Low: Monofilament steel

10

What type of tissue should vicryl not be used in?

Infected tissue

11

What is the difference of absorbable and non-absorbable suture?

Absorbable: suture that has lost most of tensile strength by 60 d
Non-absorbable: Retains tensile strength longer than 60 d

12

What is the MOA of absorbable suture?

Hydrolysis and enzymatic

13

What suture absorbs much faster in acidic environment vs. alkaline environment?

Acidic: PDS
Alkaline: monocryl

14

What is the function of coated suture?

Decreases tissue drag

15

What type of coatings has less knot security?

Water soluble coating

16

What type of needle is used for tension relieving sutures in skin?

Straight needle

17

What is the most common used needle in SAM?

Curved

18

What is the most commonly used suture attachment?

Swagged (threaded)

19

Which needle is used for the intestine, SC and bladder?

Taperpoint

20

What needle is used to dissect through friable tissue without cutting?

Blunt point

21

What needle has a cutting surface on the concave side?

Cutting

22

What needle has a cutting surface on the convex side and is typically used for skin?

Reverse cutting

23

What are the two types of synthetic absorbable braided suture?

Vicryl and Dexon

24

Monocryl, caprosyn, biosyn, PDS and maxon are examples of what?

Monofilament synthetic absorbable

25

What are some adverse effects of cat gut suture?

Highly inflammatory
Unpredictable enzymatic absorption

26

50% of this suture is absorbed at 6 months

PDS

27

What suture can only be used on skin?

Polymerized Caprolactam/Vetafil