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Surgery I > Bandages + Drains > Flashcards

Bandages + Drains Flashcards

1
Q

What are the three layers to a bandage?

A

Contact
Intermediate
Outer

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2
Q

Function of: Contact layer

A

Final protective barrier from the environment
Absorption/Transfer of exudate
Debridement
Maintain moist environment

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3
Q

Function of: Intermediate layers

A

Holds contact layer in place
Eliminates dead space
Prevents fluid accumulation
Wicks away nasty fluid

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4
Q

Function of: Outer layer

A

External barrier

Provides support and pressure

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5
Q

How is material chosen for the primary layer?

A

Exudative status

Sterile and place ascetically

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6
Q

What are the criteria you want the contact layer to meet for a infected wound?

A

Debride + draw infected fluid/tissue away

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7
Q

What are the criteria you want the contact layer to meet for a granulating wound?

A

Protective and allows uninterrupted vascular growth

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8
Q

What are two dressing groups?

A

Adherent and Non-adherent

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9
Q

What are the adherent dressings?

A

Dry gauze + Moistened gauze

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10
Q

What are the non-adherent dressings?

A

Telfa + Hydrocolloid + Adaptic

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11
Q

How often should adherent bandages be changed?

A

every 2 to 3 days

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12
Q

What are the functions of an adherent bandage?

A

Adsorptive ability greater than amount of fluid

Debride + Draw away fluid

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13
Q

How often should non-adherent bandages be changed? Why?

A

every 3 to 7 days

Want to disrupt granulation + epithelialization + contraction as much as possible

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14
Q

What are the two layers of the intermediate layer?

A

Inner absorbent = Cotton

Stabilizing = Rolled gauze

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15
Q

What does the pressure from the outer bandage do for the wound?

A

Control hemorrhage
Limits dead space
Supports tissue
Prevents seroma + hematomas

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16
Q

What are four materials that can make up the outer layer?

A

Elastic material
Inelastic material
Cohesive
Porous vs Waterproof

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17
Q

Why is it good to have a porous outer bandage?

A

Allows for evaporation from intermediate layer

18
Q

Why would you use elastic material?

A

Can adjust pressure better

19
Q

Why would you use inelastic material?

A

More supportive

20
Q

What can be added to the badage for extra support?

A

Cast - Splint - Tape

21
Q

Where are casts placed within the badage?

A

Outer layer

22
Q

Where are splints placed within the bandage?

A

Intermediate layer

23
Q

What is a robert-jones bandage?

A

Immobilization of fractures + injuries distal to elbow + stifle
Decreases/ Prevents edema
SHORT TERM
Large amount of cotton for absorption

24
Q

What is a modified robert-jones bandage?

A

Same as R-J just less cotton

LONG TERM

25
Q

What two kind of splints are there?

A

Lateral
– and –
Mason Meta

26
Q

What are mason meta splints?

A

palmar/plantar splints

= “Spoon splints”

27
Q

What do wet-to-dry bandages do?

A

Draw fluid away from wound by liquifying coagulum + absorbing necrotic debris
As bandages dry pull debris + exudate away

28
Q

What type of inner layer do wet to dry bandages have?

A

Adherent

Moistened with saline

29
Q

What are the two groups of drains?

A

Open and closed

30
Q

Name: Open, passive drain

A

Penrose

31
Q

Name: Closed, active drain

A

Jackson pratt

32
Q

Which drain is most popular?

A

Open penrose

33
Q

How does a penrose drain work?

A

Capillary action along outside of tube

Gravity flow

34
Q

How is a penrose drain placed?

A

Proximal end deepest
Exit should be lower so gravity does job
Exit held in place by suture

35
Q

Where should a penrose NOT be placed?

A

Abdomen + Thorax

36
Q

Why shouldnt you have both ends exposed?

A

More chance bacteria will enter

Drain can’t be in deepest part of cavity

37
Q

When should both ends of the penrose drain be exposed?

A

Inguinal
– and–
Axilla

38
Q

Why are the inguinal + axilla placements different?

A

Movement in the area causes subcutaneous emphysema

39
Q

How do closed drains work?

A

Negative pressure pulls out fluid

40
Q

Why are closed drains beneficial?

A

Decrease infection risk

Reduces dead space by collapsing cavity - fewer seromas

41
Q

What are the two types of closed drains?

A

Continous
– and –
Intermittent

42
Q

How much can a drain produce if wound is infected?

A

2 ml/kg/day

Surgery I (17 decks)

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