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Sx Lab Quiz > Suture > Flashcards

Suture Flashcards

1
Q

What types of suture are absorbable?

A

Chromic gut

polyglactin 910

PGA

Glycomer 631

Caprolactone

Poliglecaprone 25

PDS( prolonged absorbable)

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2
Q

What types of suture are non-absorbable?

A

Nylon

Silk

Polypropylene

Polymerized caprolactam

stainless steel wire

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3
Q

Is chromic gut absorbable?

A

Yep

  • B/d by phagocytosis
  • rapidly removed in infected wounds
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4
Q

Is chromic gut multifilament?

A

Yep

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5
Q

What is chromic gut made out of?

A

Sheep gut….Gross

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6
Q

True/False

Knot security decreases when chromic gut is wet?

A

TRUE!!!

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7
Q

What are the current uses for chromic gut?

A

Trick question!

Not really used in practice

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8
Q

True/False

Polyglactin 910 is absorbable and monofilament

A

False!

Polyglactin 910 is absorbable and Multifilament.

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9
Q

How is polyglactin 910 broken down?

A

HYDROLYSIS

stable in contaminated wounds

rapidly degraded in infected urine

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10
Q

What are the uses of polyglactin 910?

A

Dental sx

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11
Q

True/False

Polyglactin 910 is synthetic.

A

TRUE!

copolymer of lactide and glycolide with polyglactin 370

coated with calcium stearate.

If they ask this then I’m going to kill all their families

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12
Q

What are the uses for PGA?

A

Dental sx

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13
Q

What is the difference in Polyglactin 910 and PGA?

A

PGA

  • synthetic, but from glycolic acid
  • coated or uncoated

Polyglactin 910

  • copolymer of lactide and glycolide with polyglactin 370

coated with calcium stearate.

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14
Q

How is PGA bd?

A

HYDROLYSIS

stable in contaminated wounds

rapidly degraded in infected urine

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15
Q

T/F

Glycomer 631 is absorbable and monofilament.

A

TRUE!

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16
Q

What are the uses of glycomer 631?

A

TONS!

  • enterotomies
  • cystotomies
  • body wall closure
  • fascia closure
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17
Q

T/F

Caprolactone is non-absorbable and monofilment suture.

A

False

Caprolactone is absorbable and monofilment suture.

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18
Q

What are the uses for Caprolactone?

A

Closure of cystotomies

  • Must be non-infected

SQ closure

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19
Q

T/F

Poliglecaprone 25 is also called monocryl

A

True

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20
Q

T/F

Monocryl is absorbable and monofilament

A

True

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21
Q

What are the uses of monocryl?

It’s the same as caprolactone

A

Closure of cystotomies

Must be non-infected

SQ closure

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22
Q

Which suture is prolonged absorbable?

A

Polidioxanone (PDS)

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23
Q

T/F

PDS is absorbable and monofilament

A

True

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24
Q

What are the uses of PDS?

A

TONS!

  • enterotomies
  • cystotomies
  • body wall closure
  • fascia closure
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25
Q

What absorbable suture is synthetic?

A

PDS

Monocryl

caprolactone

glycomer 631

PGA

Polyglactin 910

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26
Q

Which suture can be used for enterotomies, cystotomies, body wall closure, and fascia closure?

A

Glycomer 631

PDS

27
Q

T/F

Silk is absorbable.

A

NO

Silk is non-absorbable.

28
Q

What suture is multifilament braided?

A

Absorbable

  • Polyglactin 910
  • PGA

Non-absorbable

  • Silk
29
Q

T/F

Silk is mulifilament and reduces the number of bacteria required to start an infection.

A

Yeppers!

30
Q

What are the uses for silk?

A

Cardiovascular sx

31
Q

T/F

Nylon is susceptible to degradation.

A

True

hydration may lead to disruption of H bonds–>loss of tensile strength

32
Q

What are the uses for nylon?

A

Skin closure

Orthopedic repairs

  • Lateral tibiofabellar suture
33
Q

What are the uses of polypropylene?

A

Tendon

ligament

fascial

joint capsule closure

34
Q

T/F

Polypropylene is very resistent to degeneration

A

True

they don’t have any hydrolyzable bonds

35
Q

T/F

Polymerized caprilactam is non-absorbable and multifilament

A

True

36
Q

What are the uses of polymerized caprolactam?

A

STAY STUTURES ONLY

D/t sinus formation in tissues

37
Q

What are the types of stainless steel suture?

A

Nonabsorbable

  • 314 L alloy
  • 316 L alloy

Monofilament or twisted

38
Q

What are the uses of stainless steel suture?

A

orthopedic applications

closure of sternotomy

39
Q

What are the 6 characteristics of suture

A

size

fleibility

surface characterisitcs and coating

capillarity

tensile strength

knot security

40
Q

T/F

Smaller suture has less tensile strength

A

True

41
Q

What is flexibility of suture dependent on?

A

Type of suture

size

42
Q

T/F

When ligating vessels a more flexible suture is better.

A

True

43
Q

What type of suture has more drag through tissue?

A

Braided has more drag than monfilament

So therefore, smooth suture is less traumatic to tissue

44
Q

What type of suture is less traumatic to tissue, but has less knot security?

A

Smooth suture

45
Q

T/F

Coating braided suture decreases the drag.

A

True

Can be coated with teflon, silicone, wax, paraffin-wax, Ca stearate

46
Q

What is capillarity?

A

Process by which fluid and bacteria are wicked along multifilament fibers

Allows infection to persist in the suture

47
Q

T/F

ALL braided suture have capillarity.

A

TRUE!

Do not use multifilament sutures in contaminated or infected tissue!

48
Q

What is tensile strength?

A

The measurement of tissue of fibers ability to resist deformation or breakage.

49
Q

How strong should the sutures be?

A

As strong as the tissue where they are being place.

50
Q

What are the 2 twisted sutures?

A

Chromic gut

Polymerized caprolactam

51
Q

How should the size of surgical needles be selected?

A

based on the tissue being sutured

depth of the wound

52
Q

What is the most common needle shape?

A

1/2 circle

53
Q

What is a 1/4 circle used for?

A

opthalmic procedures

54
Q

What is 5/8 circle used for

A

confined locatios or deep tissues

55
Q

What is 3/8 circle used for?

A

superficial tissue

56
Q

T/F

Taperpoint needle shape pierces, spreads, and cuts tissue.

A

False

Taperpoint needle shape pierces, spreads, and does NOT cut tissue.

57
Q

Where should a taperpoint needle be used?

A

intestine

SQ tissue

fascia

58
Q

What is the shape of a cutting needle?

A

Cutting edge on the concave portion of the needle.

59
Q

What tissues should a tapercut needle be used in?

A

Heavy, thick fascia

Tendon

Vascular grafts

60
Q

Where should a reverse cutting needle be used?

A

Skin

61
Q

What shape is a spatula point needle?

A

Flat on the bottom and top

62
Q

What procedures should a spatula point needle be used in?

A

Ophthalmic

63
Q

What type of tissue should a blunt point need be used in?

A

Soft parenchymal organs

Ex: Liver and kidneys

64
Q
A

Sx Lab Quiz (2 decks)

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