Control of Microorganisms Quiz

Froggy Jumps

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Infection control basics

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Yvette Joy Dumalhin

Philippines

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Control of Microorganisms Quiz


Froggy Jumps Control of Microorganisms QuizOnline version Infection control basics by Yvette Joy Dumalhin 1 What does asepsis primarily mean in a clinical setting? a Presence of sterile equipment b Absence of pathogenic microorganisms c Killing all bacteria only 2 Antisepsis refers to: a sterilization of surgical instruments b chemical disinfection of skin or living tissue c removal of microbes through filtration 3 Which factor can reduce the effectiveness of a disinfectant by shielding microorganisms? a Low temperature b Organic material c Small population size 4 Which agent is commonly used for autoclave sterilization? a Ethylene oxide gas b Steam under pressure (autoclave) c UV light 5 The decimal reduction time (D-value) is the time required to: a kill all spores in a sample b reduce a microbial population by 90% c inhibit microbial growth for 24 hours 6 Hand hygiene should last at least how long with soap and water? a 20 seconds b 60 seconds c 5 seconds 7 Which group is considered the most resistant to microbial control methods? a Vegetative bacteria b Bacterial endospores c Prions 8 The most effective disinfectant for general surface contamination is often: a Pure water b 70% alcohol or other approved disinfectants c Plain soap 9 When is sterile technique required in nursing care? a Only when surgery is involved b During invasive procedures and sterile specimen handling c During all patient interactions 10 What is the difference between bactericidal and bacteriostatic agents? a Bactericidal kills bacteria; bacteriostatic inhibits growth b Both kill bacteria completely c Bacteriostatic kills bacteria; bactericidal inhibits growth 11 Ionizing radiation is especially useful for sterilizing: a heat-sensitive medical supplies b surgical hand scrubs c skin before injection 12 Desiccation controls microbial growth mainly by: a removing water needed for metabolism b breaking DNA strands c producing free radicals 13 In the Spaulding classification, high-level disinfection is used for: a semi-critical items such as endoscopes b critical implants only c food-contact surfaces 14 Which of the following is an iodophor used in skin preparation? a Benzalkonium chloride b Povidone-iodine c Ethylene oxide 15 Quaternary ammonium compounds are inactivated by: a soap residues and organic matter b heat and dry air c stainless steel surfaces 16 Which antiseptic is known for its persistent residual activity on the skin? a Chlorhexidine b Formaldehyde c Ethanol 17 Selective toxicity means that an antimicrobial drug: a is toxic to the pathogen but minimally harmful to the host b works only on Gram-positive bacteria c kills only viruses 18 Narrow-spectrum antibiotics are preferred when the pathogen is known because they: a minimize disruption of normal microbiota b never cause resistance c are always cheaper 19 Fluoroquinolones inhibit bacterial: a DNA gyrase and topoisomerase IV b ergosterol synthesis c peptidoglycan synthesis 20 Which is a mechanism of antimicrobial resistance? a Efflux pumps that expel drugs from cells b Loss of all plasmids c Increased sensitivity to drugs 21 Alcohol-based hand rub is preferred even when hands are visibly soiled. a False b True c No Answer 22 Refrigeration at 4°C is a reliable sterilization method for clinical specimens. a False b True c No answer 23 Vancomycin is an important drug for MRSA and severe C. difficile infection. a True b False c No answer 24 Resistance genes may be transferred through plasmids and transposons. a True b False c No answer 25 Vancomycin is an important drug for MRSA and severe C. difficile infection. a True b False c No answer 26 Ethylene oxide is useful for heat-sensitive equipment such as catheters and electronic devices. a True b False c No answer 27 Quats are high-level disinfectants effective against spores. a False b True c No answer 28 Alcohols are effective against spores and are therefore considered sporicidal. a False b True c No answer 29 HEPA filtration is important in isolation rooms and bone marrow transplant units. a True b False c No answer 30 Desiccation always kills bacterial endospores. a False b True c No answer

Control of Microorganisms Quiz

Froggy Jumps

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Control of Microorganisms QuizOnline version

by Yvette Joy Dumalhin

What does asepsis primarily mean in a clinical setting?

Antisepsis refers to:

Which factor can reduce the effectiveness of a disinfectant by shielding microorganisms?

Which agent is commonly used for autoclave sterilization?

The decimal reduction time (D-value) is the time required to:

Hand hygiene should last at least how long with soap and water?

Which group is considered the most resistant to microbial control methods?

The most effective disinfectant for general surface contamination is often:

When is sterile technique required in nursing care?

What is the difference between bactericidal and bacteriostatic agents?

Ionizing radiation is especially useful for sterilizing:

Desiccation controls microbial growth mainly by:

In the Spaulding classification, high-level disinfection is used for:

Which of the following is an iodophor used in skin preparation?

Quaternary ammonium compounds are inactivated by:

Which antiseptic is known for its persistent residual activity on the skin?

Selective toxicity means that an antimicrobial drug:

Narrow-spectrum antibiotics are preferred when the pathogen is known because they:

Fluoroquinolones inhibit bacterial:

Which is a mechanism of antimicrobial resistance?

Alcohol-based hand rub is preferred even when hands are visibly soiled.

Refrigeration at 4°C is a reliable sterilization method for clinical specimens.

Vancomycin is an important drug for MRSA and severe C. difficile infection.

Resistance genes may be transferred through plasmids and transposons.

Vancomycin is an important drug for MRSA and severe C. difficile infection.

Ethylene oxide is useful for heat-sensitive equipment such as catheters and electronic devices.

Quats are high-level disinfectants effective against spores.

Alcohols are effective against spores and are therefore considered sporicidal.

HEPA filtration is important in isolation rooms and bone marrow transplant units.

Desiccation always kills bacterial endospores.