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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
What absorbable suture is synthetic?
PDS Monocryl caprolactone glycomer 631 PGA Polyglactin 910
26
Which suture can be used for enterotomies, cystotomies, body wall closure, and fascia closure?
Glycomer 631 PDS
27
T/F Silk is absorbable.
NO Silk is **non-**absorbable.
28
What suture is multifilament braided?
Absorbable * Polyglactin 910 * PGA Non-absorbable * Silk
29
T/F Silk is mulifilament and reduces the number of bacteria required to start an infection.
Yeppers!
30
What are the uses for silk?
Cardiovascular sx
31
T/F Nylon is susceptible to degradation.
True hydration may lead to disruption of H bonds--\>loss of tensile strength
32
What are the uses for nylon?
Skin closure Orthopedic repairs * Lateral tibiofabellar suture
33
What are the uses of polypropylene?
Tendon ligament fascial joint capsule closure
34
T/F Polypropylene is very resistent to degeneration
True they don't have any hydrolyzable bonds
35
T/F Polymerized caprilactam is non-absorbable and multifilament
True
36
What are the uses of polymerized caprolactam?
STAY STUTURES ONLY D/t sinus formation in tissues
37
What are the types of stainless steel suture?
Nonabsorbable * 314 L alloy * 316 L alloy Monofilament or twisted
38
What are the uses of stainless steel suture?
orthopedic applications closure of sternotomy
39
What are the 6 characteristics of suture
size fleibility surface characterisitcs and coating capillarity tensile strength knot security
40
T/F Smaller suture has less tensile strength
True
41
What is flexibility of suture dependent on?
Type of suture size
42
T/F When ligating vessels a more flexible suture is better.
True
43
What type of suture has more drag through tissue?
Braided has more drag than monfilament So therefore, smooth suture is less traumatic to tissue
44
What type of suture is less traumatic to tissue, but has less knot security?
Smooth suture
45
T/F Coating braided suture decreases the drag.
True Can be coated with teflon, silicone, wax, paraffin-wax, Ca stearate
46
What is capillarity?
Process by which fluid and bacteria are wicked along multifilament fibers Allows infection to persist in the suture
47
T/F ALL braided suture have capillarity.
TRUE! **Do not use multifilament sutures in contaminated or infected tissue!**
48
What is tensile strength?
The measurement of tissue of fibers ability to resist deformation or breakage.
49
How strong should the sutures be?
As strong as the tissue where they are being place.
50
What are the 2 twisted sutures?
Chromic gut Polymerized caprolactam
51
How should the size of surgical needles be selected?
based on the tissue being sutured depth of the wound
52
What is the most common needle shape?
1/2 circle
53
What is a 1/4 circle used for?
opthalmic procedures
54
What is 5/8 circle used for
confined locatios or deep tissues
55
What is 3/8 circle used for?
superficial tissue
56
T/F Taperpoint needle shape pierces, spreads, and cuts tissue.
False Taperpoint needle shape pierces, spreads, and **does NOT** cut tissue.
57
Where should a taperpoint needle be used?
intestine SQ tissue fascia
58
What is the shape of a cutting needle?
Cutting edge on the concave portion of the needle.
59
What tissues should a tapercut needle be used in?
Heavy, thick fascia Tendon Vascular grafts
60
Where should a reverse cutting needle be used?
Skin
61
What shape is a spatula point needle?
Flat on the bottom and top
62
What procedures should a spatula point needle be used in?
Ophthalmic
63
What type of tissue should a blunt point need be used in?
Soft parenchymal organs Ex: Liver and kidneys
64

Sx Lab Quiz (2 decks)

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