Sterilization and Disinfection

Question 1

Phenolic compounds (7)

Answer 1

Against Mycobacteria

Active in presence of organic materials

Remain active in surfaces long after application

Disagreeable smell, skin irritation, not active against spores

Easily inactivated by organic material (Dettol)

Question 2

Alcohols (4)

Answer 2

Broad spectrum

Skin Disinfection, Thermometers, Small instruments

Question 3

Chlorhexidine (Hibiclens, Hibitane) (4)

Answer 3

Broad spectrum

Pre-operative skin scrubs, skin cleaning, Burns

Question 4

Halogens (1)

Answer 4

Broad spectrum

Question 5

Betadine and Povidone (5)

Answer 5

Broad spectrum

Water soluble iodophore of iodine

Wound disinfection, Pre-operative skin and surgical hand disinfect

Question 6

Hydrogen Peroxide (1)

Answer 6

Wound disinfection

Question 7

Chlorine (2)

Answer 7

Broad spectrum

Effective household and laboratory disinfectants (Clorox or Purex bleach)

Question 8

Glutaraldehyde (Cidex) (3)

Answer 8

Broad spectrum

Including spores

Sterilizing endoscopes, cystoscopes, bronchoscopes

Question 9

Quaternary ammonium compounds (Detergents) (3)

Answer 9

Against Gram-positive bacteria

Not active against M.tuberculosis

Inactivated by organic material

Question 10

Heavy metals (2)

Answer 10

Broad spectrum

Hospitals and homes

Question 11

Silver Nitrate (2)

Answer 11

Bactercidal for gonococci

Newborn —> prevent gonococcal opthalmia

Question 12

Silver sulphadiazine (2)

Answer 12

Broad spectrum

For burns

Question 13

Copper sulphate (1)

Answer 13

Swimming pools

Question 14

Critical Items (4)

Answer 14

Glutaraldehyde

Chlorine dioxide

6% Hydrogen peroxide

Para acetic acid

Question 15

Semi-critical Items (5)

Answer 15

70% alcohol

Chlorine compounds

Hydrogen peroxide

Lysol

Iodophors

Question 16

Non-critical Items (3)

Answer 16

Quaternary ammonium compounds

Iodophors

Phenolic compounds

Question 17

Hands

Answer 17

Chlorohexidine

Question 18

Spills of blood, body fluids

Answer 18

Hypochlorite