Aseptic techniques in medical imaging Flashcards
What is Asepsis?
-Asepsis means free of infection.
How do you preform medical asepsis?
May be performed by disinfection.
What is disinfectant and how much microorganisms does it kill?
The destruction of pathogenic microbes, toxins, vectors and other pathogens by use of chemical agents.
-Kills 99%
What is a topically applied disinfectant is known as?
antiseptic
What are the 4 types of chemical disinfectants/antiseptics?
- Chlorine
- Iodine
- Alcohols
- Hydrogen peroxide
What type of disinfectant is bleach?
Bactericidal & Sporicidal
What type of disinfectant is iodine and what is it used in?
-Bactericidal, Fungicidal and Virucidal
-It is an antiseptic used in Betadine & Surgidine
What type of disinfectant is alcohol and where is it used?
-Bactericidal, Tuberculocidal, Fungicidal, Virucidal
-Used in Isopropyl Alcohol (IPA): 70% aqueous solution (rubbing alcohol)
What percentage of hydrogen peroxide is effective against bacteria, fungi and viruses?
6%
What percentage of hydrogen peroxide is used for wound cleaning?
3%
What is Surgical Asepsis?
Complete removal of microorganisms and their spores from the surface of an object
What requires the use of surgical asepsis?
Any medical procedure that involves penetration of body tissues (an invasive procedure)
What procedures require surgical and medical asepsis?
- Major and minor surgical procedures
- Administration of parenteral medication
- Catheterization of the urinary bladder
- Dressing changes
- Venipuncture
What are the 2 steps to physical sterilization of object?
- Heat (steam under pressure)
- UV (C) Light
What is better at sterilization, moist or dry heat?
Moist