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Surgery Lab Quiz > Suture > Flashcards

Suture Flashcards

1
Q

What is the function of suture?

A

Hold tissue in apposition until wound healing progresses

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2
Q

What are the 4 properties of suture?

A

Tensile strength
Knot strength
Piability
Capillarity

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3
Q

What is tensile strength?

A

How strong suture is and ability to resist breakage

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4
Q

The larger the suture size the ____the tensile strength

A

Greater

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5
Q

What is the weakest point of the suture?

A

Knot

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6
Q

The larger the diameter of suture the____ secure the knot

A

Less

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7
Q

What are the length of suture tags?

A

3-5 mm internal

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8
Q

What is capilarity?

A

How much suture wicks/absorbs

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9
Q

What suture has high vs. low capilarity?

A

High: woven suture (vicryl)
Low: Monofilament steel

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10
Q

What type of tissue should vicryl not be used in?

A

Infected tissue

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11
Q

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

A

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

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12
Q

What is the MOA of absorbable suture?

A

Hydrolysis and enzymatic

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13
Q

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

A

Acidic: PDS
Alkaline: monocryl

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14
Q

What is the function of coated suture?

A

Decreases tissue drag

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15
Q

What type of coatings has less knot security?

A

Water soluble coating

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16
Q

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

A

Straight needle

17
Q

What is the most common used needle in SAM?

A

Curved

18
Q

What is the most commonly used suture attachment?

A

Swagged (threaded)

19
Q

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

A

Taperpoint

20
Q

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

A

Blunt point

21
Q

What needle has a cutting surface on the concave side?

A

Cutting

22
Q

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

A

Reverse cutting

23
Q

What are the two types of synthetic absorbable braided suture?

A

Vicryl and Dexon

24
Q

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

A

Monofilament synthetic absorbable

25
Q

What are some adverse effects of cat gut suture?

A

Highly inflammatory

Unpredictable enzymatic absorption

26
Q

50% of this suture is absorbed at 6 months

A

PDS

27
Q

What suture can only be used on skin?

A

Polymerized Caprolactam/Vetafil

Surgery Lab Quiz (11 decks)

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