Flashcards in Bandages + Drains Deck (42):
What are the three layers to a bandage?
Function of: Contact layer
Final protective barrier from the environment
Absorption/Transfer of exudate
Maintain moist environment
Function of: Intermediate layers
Holds contact layer in place
Eliminates dead space
Prevents fluid accumulation
Wicks away nasty fluid
Function of: Outer layer
Provides support and pressure
How is material chosen for the primary layer?
Sterile and place ascetically
What are the criteria you want the contact layer to meet for a infected wound?
Debride + draw infected fluid/tissue away
What are the criteria you want the contact layer to meet for a granulating wound?
Protective and allows uninterrupted vascular growth
What are two dressing groups?
Adherent and Non-adherent
What are the adherent dressings?
Dry gauze + Moistened gauze
What are the non-adherent dressings?
Telfa + Hydrocolloid + Adaptic
How often should adherent bandages be changed?
every 2 to 3 days
What are the functions of an adherent bandage?
Adsorptive ability greater than amount of fluid
Debride + Draw away fluid
How often should non-adherent bandages be changed? Why?
every 3 to 7 days
Want to disrupt granulation + epithelialization + contraction as much as possible
What are the two layers of the intermediate layer?
Inner absorbent = Cotton
Stabilizing = Rolled gauze
What does the pressure from the outer bandage do for the wound?
Limits dead space
Prevents seroma + hematomas
What are four materials that can make up the outer layer?
Porous vs Waterproof
Why is it good to have a porous outer bandage?
Allows for evaporation from intermediate layer
Why would you use elastic material?
Can adjust pressure better
Why would you use inelastic material?
What can be added to the badage for extra support?
Cast - Splint - Tape
Where are casts placed within the badage?
Where are splints placed within the bandage?
What is a robert-jones bandage?
Immobilization of fractures + injuries distal to elbow + stifle
Decreases/ Prevents edema
Large amount of cotton for absorption
What is a modified robert-jones bandage?
Same as R-J just less cotton
What two kind of splints are there?
-- and --
What are mason meta splints?
= "Spoon splints"
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
What type of inner layer do wet to dry bandages have?
Moistened with saline
What are the two groups of drains?
Open and closed
Name: Open, passive drain
Name: Closed, active drain
Which drain is most popular?
How does a penrose drain work?
Capillary action along outside of tube
How is a penrose drain placed?
Proximal end deepest
Exit should be lower so gravity does job
Exit held in place by suture
Where should a penrose NOT be placed?
Abdomen + Thorax
Why shouldnt you have both ends exposed?
More chance bacteria will enter
Drain can't be in deepest part of cavity
When should both ends of the penrose drain be exposed?
Why are the inguinal + axilla placements different?
Movement in the area causes subcutaneous emphysema
How do closed drains work?
Negative pressure pulls out fluid
Why are closed drains beneficial?
Decrease infection risk
Reduces dead space by collapsing cavity - fewer seromas
What are the two types of closed drains?
-- and --