Sx asepsis and Sx Technique Flashcards Preview

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Flashcards in Sx asepsis and Sx Technique Deck (33):
1

What is asepsis?

Prevent/minimize wound contamination by destroying organisms before they enter the wound

2

What is antisepsis?

killing of bacteria after they have entered the wound

3

What is disinfection?

Use the germicidal substances to kill most microorganisms

4

What is sterilization?

process of destroying all microorganisms (bacteria, fungi and spores)

5

What is the goal of asepsis?

Minimize contamination of sx wounds

6

What is the scrub technique method?

Two hand or one-hand transfer method

7

How should the sx site be scrubbed?

Circular motion, site to periphery

8

What is the contact time for scrub?

5 minutes

9

What is the primary aerial source?

YOU

10

Where should you not wear a lab coat?

sterile area

11

T/F: Alcohol based waterless hand rubs are just as effective as traditional techniques

TRUE

12

Why should you let water faucets run before starting scrub?

Faucets often harbour pathogenic bacteria

13

What are the three types of scrubs?

4% chlorhexidine
10-15% povidone iodine
Alcohol based hand rubs

14

What gloving technique is preferred?

Closed gloving

15

What % of gloves have holes:
- before use
- end of a 2 hr. procedure
- post ortho procedures

12%
25%
50%

16

Once sterile where should your hands be kept?

Between level of waist and axillae

17

T/F: You should cross arms and place hands in axillae when waiting to start procedure

FALSE- NEVERRR

18

What is the initial step in creating sterile operating field?

Quarter drapes

19

How far should a surgeon stay away until the top drape is applied?

12"

20

What is not sterile on your body once sx starts?

back, neck, shoulders, axillae, below waist

21

What are the physical vs. chemical sterilization methods?

Physical: Thermal, filtration, radiation
Chemical: plasma, ethylene oxide, disinfectants

22

What is the most common sterilization method?

Steam sterilization- destruction or denaturation of cellular proteins

23

What is the minimum standard of steam sterilization?

250 degrees for 15-30 minutes

24

What are sterilization indicators for steam sterilization?

Chemical- tape/strips

25

When are "cold" disinfectants used?

scopes which can't be sterilized in other methods
NEVER FOR INSTRUMENTS

26

What is the time difference for disinfection vs. sterilization with "cold" disinfectants?

Disinfection: 10 minutes
Sterilization: 10 hrs

27

What is the max thickness of packs that can be sterilized?

12" thick

28

What should be placed on infrequently used packs?

Expiration dates

29

What is the shelf life of the following:
Heat sealed paper/transparent plastic pouch:
2 layers, nonwoven polypropylene fabric:
2 layers, cloth:

1yr
8 wks.
4 wks

30

What reduces risk of infection by removing bacteria and loose tissue fragments from wound?

Wound lavage

31

What is the difference in primary, intermediate delayed and secondary delayed hemorrhage?

Primary: bleeding during procedure
Intermediate delayed: w/in 24 hrs of sx
Secondary delayed: after 24 hrs (result of ineffective ligation)

32

What are three topical hemostatic agents?

Gelfoam: gelatin sponge from pig skin
Surgicel: absorbable plant based cellulose
Hemablock: microporous polysaccharide powder

33

Where should the circumferential ligature be placed in terms of location to transfixion ligature?

Proximal