Test 1. antispetic

Question 1

Destruction of all microorganisms on inanimate objects

Answer 1

sterilization

Question 2

Destruction of most microorganisms on animate objects

Answer 2

antisepsis

Question 3

Destruction of most microorganisms on inanimate objects

Answer 3

disinfection
(think the floor or tables)

Question 4

operating room airflow should be

Answer 4

filtered ventilation
regular maintenance
positive pressure
15 air exchanges/ hour

Question 5

an operating room should have positive or negative pressure?

Answer 5

positive, if door opens clean air flows out, prevents dirty air from coming in

Question 6

how many air exchanges per hour

Answer 6

15

Question 7

what are some disinfectants

Answer 7

Quaternary ammonium compounds
* Hydrogen peroxide
* Sodium hypochlorite (bleach)
* Chlorhexidine

disinfection= Destruction of most microorganisms on inanimate objects

Question 8

what do you use to scrub

Answer 8

Chlorhexidine gluconate

disrupts cell wall
broad spectrum
good residual activity

Question 9

why use chlorhex for preop scrub?

Answer 9

Chlorhexidine gluconate

disrupts cell wall
broad spectrum
good residual activity

Question 10

mechanism for iodine scrub

Answer 10

cell wall penetration and oxidation
broad spectrum
minimal residual activity

Question 11

iodine scrub is also called

Answer 11

povidone-iodine

Question 12

avaguard

Answer 12

1% chlorhexidine
61% ethyl alcohol
(antiseptic rub)

Question 13

sterillium

Answer 13

85% ethyl alcohol
(antiseptic rub)

Question 14

true or false you should dry your hands with a towel after using antiseptic rubs

Answer 14

false
should airdry

Question 15

why not clip patient the day before

Answer 15

increased infection rate

Question 16

why rough scrub

Answer 16

remove dirts and oils
increase contact time - chlorhex or povisone-iodine

Question 17

steps of prep for patient

Answer 17

clip
rough scrub
sterile scrub

Question 18

example of prepackaged applicator

Answer 18

chloraprep
dura prep

Question 19

draping a patient

Answer 19

four corner draping
final drap
+/- adhesive drape

creates a sterile field

Question 20

sterilization kills

Answer 20

all microorganisms on inanimate object

Question 21

how does steam sterilization work

Answer 21

autoclave
250-270 *F
do not stack

Question 22

how does gas autoclave work?

Answer 22

takes a longer time than autoclave- up to 12 hours
temps 100-130
use for heat-sensitive items (plastics)
Ethylene oxide sterilization

Question 23

what temp for gas sterilization

Answer 23

100-130
ethylene oxide

where normal autoclave gets to 250-270

Question 24

hydrogen peroxide plasma sterilization gets to what temp?

Answer 24

122-131
autoclave 250-270
ethylene oxide 100-130

Question 25

why use hydrogen peroxide plasma over ethylene oxide

Answer 25

hydrogen only takes 1 hour, safer but more expensive (122-131 F)

ethylene (100-130), takes up to 12 hours

Question 26

what kind of sterilization used by manufacturers

Answer 26

ionizing radiation
low temp
used for suture and implants ect.

Question 27

why use cold sterile

Answer 27

convenient
can use on heat sensitive items
short time 12-15 mins