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Surgery I > Bandages + Drains > Flashcards

Flashcards in Bandages + Drains Deck (42):
1

What are the three layers to a bandage?

Contact
Intermediate
Outer

2

Function of: Contact layer

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

3

Function of: Intermediate layers

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

4

Function of: Outer layer

External barrier
Provides support and pressure

5

How is material chosen for the primary layer?

Exudative status
Sterile and place ascetically

6

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

Debride + draw infected fluid/tissue away

7

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

Protective and allows uninterrupted vascular growth

8

What are two dressing groups?

Adherent and Non-adherent

9

What are the adherent dressings?

Dry gauze + Moistened gauze

10

What are the non-adherent dressings?

Telfa + Hydrocolloid + Adaptic

11

How often should adherent bandages be changed?

every 2 to 3 days

12

What are the functions of an adherent bandage?

Adsorptive ability greater than amount of fluid
Debride + Draw away fluid

13

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

every 3 to 7 days
Want to disrupt granulation + epithelialization + contraction as much as possible

14

What are the two layers of the intermediate layer?

Inner absorbent = Cotton
Stabilizing = Rolled gauze

15

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

Control hemorrhage
Limits dead space
Supports tissue
Prevents seroma + hematomas

16

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

Elastic material
Inelastic material
Cohesive
Porous vs Waterproof

17

Why is it good to have a porous outer bandage?

Allows for evaporation from intermediate layer

18

Why would you use elastic material?

Can adjust pressure better

19

Why would you use inelastic material?

More supportive

20

What can be added to the badage for extra support?

Cast - Splint - Tape

21

Where are casts placed within the badage?

Outer layer

22

Where are splints placed within the bandage?

Intermediate layer

23

What is a robert-jones bandage?

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

24

What is a modified robert-jones bandage?

Same as R-J just less cotton
LONG TERM

25

What two kind of splints are there?

Lateral
-- and --
Mason Meta

26

What are mason meta splints?

palmar/plantar splints
= "Spoon splints"

27

What do wet-to-dry bandages do?

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

28

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

Adherent
Moistened with saline

29

What are the two groups of drains?

Open and closed

30

Name: Open, passive drain

Penrose

31

Name: Closed, active drain

Jackson pratt

32

Which drain is most popular?

Open penrose

33

How does a penrose drain work?

Capillary action along outside of tube
Gravity flow

34

How is a penrose drain placed?

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

35

Where should a penrose NOT be placed?

Abdomen + Thorax

36

Why shouldnt you have both ends exposed?

More chance bacteria will enter
Drain can't be in deepest part of cavity

37

When should both ends of the penrose drain be exposed?

Inguinal
-- and--
Axilla

38

Why are the inguinal + axilla placements different?

Movement in the area causes subcutaneous emphysema

39

How do closed drains work?

Negative pressure pulls out fluid

40

Why are closed drains beneficial?

Decrease infection risk
Reduces dead space by collapsing cavity - fewer seromas

41

What are the two types of closed drains?

Continous
-- and --
Intermittent

42

How much can a drain produce if wound is infected?

2 ml/kg/day