Sterilization and Disinfection — Flashcards

Flashcard 1: chemical disinfectant of choice for Hep A is  _____

Answer: sod. hypochlorite

Extra: 

Flashcard 2: The method of sterilization that involves heating at _____C for 30 minutes for 3 successive days is called Inspissation

Answer: 80-85

Flashcard 3: _____ and other organic solvents can disrupt the envelope of a virus, resulting in loss of infectivity

Answer: Ether

Flashcard 4: Autoclaving at _____ degree Celsius for 5 h or treatment with 2N NaOH for several hours is recommended for sterilization of prions

Answer: 134

Flashcard 5: _____ indicates the efficacy of a disinfectant as compared to phenol.

Answer: Phenol coefficient

Flashcard 6: Which commonly used disinfectants (2) cause disruption of cell membranes?_____

Answer: Alcohols

Flashcard 7: The method of sterilization that involves steaming at _____C for 20 minutes for 3 successive days is called Tyndallization

Answer: 100

Flashcard 8: _____ work by disrupting the cell membrane, which causes lysis and release of cell contents.

Answer: Phenols

Flashcard 9: _____ is used to sterilize heart-lung machines, respirators, dental equipment, sutures, books, clothing.

Answer: Ethylene oxide

Flashcard 10: Sterilization control in ethylene oxide sterlization is by _____

Answer: Bacillus globigii

Flashcard 11: Sterilization control in hot air oven is by _____

Answer: Bacillus subtilis

Flashcard 12: _____ is used to sterlize Clinical thermometers, stethoscopes, probes

Answer: Isopropyl alcohol

Flashcard 13: _____ test: Tests the activity of disinfectant in the presence of organic matter

Answer: Chick Martin

Flashcard 14: _____ test: Tests the activity on repeated use of a disinfectant.

Answer: Kelsey Sykes (Capacity)

Flashcard 15: Sterilization control in ionizing radiation is by _____

Answer: Bacillus pumilis

Flashcard 16: Plasma sterilization makes use of _____

Answer: Hydrogen peroxide

Flashcard 17: _____ is used for sterilizing sharp instruments

Answer: 5% cresol

Flashcard 18: Sterilization control in autoclave sterlization is by _____

Answer: Geobacillus stearothermophilus

Flashcard 19: Cystoscopes, bronchoscopes, plastic endotracheal tubes, facemasks and endoscopes are sterilized with _____

Answer: 2% glutaraldehyde

Flashcard 20: Bacillus _____ is used as an indicator in ethylene oxide sterilization.

Answer: atrophaeus