Question 1

A biosafety level 2 (BSL-2) level of containment is used for organisms that:

Accepted Answer

A) can cause a catastrophe if released. 
B) usually cause 90% mortality in the population. 
C) create a moderate potential hazard for employees and the environment. 
D) do not cause significant harm to employees and the environment. 
A) can cause a catastrophe if released. 
B) usually cause 90% mortality in the population. 
C) create a moderate potential hazard for employees and the environment. 
D) do not cause significant harm to employees and the environment.

Question 2

If this is present on a surface to be disinfected, it can shield microorganisms from the disinfectant or inactivate the disinfectant.What is this substance?

Accepted Answer

A) Bleach (sodium hypochlorite) 
B) Organic material 
C) Hydrochloric acid 
D) Water 
A) Bleach (sodium hypochlorite) 
B) Organic material 
C) Hydrochloric acid 
D) Water

Question 3

A Material Safety Data Sheet (MSDS) contains all the following information except:

Accepted Answer

A) the nature of a chemical (flammable, toxic, carcinogenic). 
B) general characteristics. 
C) precautions when using a chemical. 
D) classification of a chemical (acid, base, protein). 
A) the nature of a chemical (flammable, toxic, carcinogenic). 
B) general characteristics. 
C) precautions when using a chemical. 
D) classification of a chemical (acid, base, protein).

Question 4

All of the following are examples of personal protective equipment (PPE) except:

Accepted Answer

A) gloves. 
B) laboratory coats. 
C) safety glasses. 
D) prescription glasses. 
A) gloves. 
B) laboratory coats. 
C) safety glasses. 
D) prescription glasses.

Question 5

Which topical antiseptic disrupts the microbial cell membrane and precipitates the cellular contents?

Accepted Answer

A) Chlorhexidine gluconate 
B) Povidone-iodine 
C) 95% Ethanol 
D) 60% Isopropyl alcohol 
A) Chlorhexidine gluconate 
B) Povidone-iodine 
C) 95% Ethanol 
D) 60% Isopropyl alcohol

Question 6

The best way to care for your back is to prevent back injuries.All of the following are some ways to prevent back injuries except:

Accepted Answer

A) carefully lifting heavy objects overhead. 
B) using good posture. 
C) using the legs to lift, not the back. 
D) asking for assistance when a load is too heavy. 
A) carefully lifting heavy objects overhead. 
B) using good posture. 
C) using the legs to lift, not the back. 
D) asking for assistance when a load is too heavy.

Question 7

Routine handwashing in health care settings mandates washing at all the following times except:

Accepted Answer

A) in high-risk areas such as ICU and burn units. 
B) on entering protective isolation units. 
C) before and after routine patient contact. 
D) when gloves become soiled during a procedure or dressing change on the same patient. 
A) in high-risk areas such as ICU and burn units. 
B) on entering protective isolation units. 
C) before and after routine patient contact. 
D) when gloves become soiled during a procedure or dressing change on the same patient.

Question 8

All of the following organisms can typically cause infection from aerosolization of specimens except:

Accepted Answer

A) Mycobacterium tuberculosis. 
B) Brucella spp. 
C) Staphylococcus aureus. 
D) Francisella tularensis. 
A) Mycobacterium tuberculosis. 
B) Brucella spp. 
C) Staphylococcus aureus. 
D) Francisella tularensis.

Question 9

What two alcohols are effective in killing the hepatitis B virus (HBV)?

Accepted Answer

A) 50% isopropyl and 50% butanol 
B) 95% propanol and 70% ethanol 
C) 70% isopropyl and 95% ethanol 
D) 70% pentanol and 70% isopropyl 
A) 50% isopropyl and 50% butanol 
B) 95% propanol and 70% ethanol 
C) 70% isopropyl and 95% ethanol 
D) 70% pentanol and 70% isopropyl

Question 10

Universal/Standard Precautions require that:

Accepted Answer

A) only some body fluids be considered infectious and capable of transmitting disease. 
B) body fluids with visible blood be treated as noninfectious. 
C) blood and body fluids from all patients be considered infectious and capable of transmitting disease. 
D) urine and feces be considered noninfectious. 
A) only some body fluids be considered infectious and capable of transmitting disease. 
B) body fluids with visible blood be treated as noninfectious. 
C) blood and body fluids from all patients be considered infectious and capable of transmitting disease. 
D) urine and feces be considered noninfectious.

Question 11

After using the phone, the laboratory tech sprayed the receiver with a chemical spray.This process will kill a defined scope of microorganisms.What is this process called?

Accepted Answer

A) Sterilization 
B) Bacteriostatic 
C) Disinfection 
D) Bactericidal 
A) Sterilization 
B) Bacteriostatic 
C) Disinfection 
D) Bactericidal

Question 12

Biosafety level 4 (BSL-4) organisms are dangerous, exotic, and pose an increased risk of aerosol-transmitted infections and life-threatening disease.Two examples of BSL-4 organisms are:

Accepted Answer

A) Marburg and Congo-Crimean hemorrhagic fever. 
B) St.Louis encephalitis virus and Coccidioides immitis. 
C) Mycobacterium tuberculosis and Ebola. 
D) Francisella tularensis and Ebola. 
A) Marburg and Congo-Crimean hemorrhagic fever. 
B) St.Louis encephalitis virus and Coccidioides immitis. 
C) Mycobacterium tuberculosis and Ebola. 
D) Francisella tularensis and Ebola.

Question 13

Processing of patient specimens and handling of actively growing cultures of microorganisms puts an employee at risk of potential contact with the infectious agent through all the following routes except:

Accepted Answer

A) mucous membranes. 
B) blood splashed onto intact skin. 
C) inhalation of aerosols. 
D) accidental ingestion. 
A) mucous membranes. 
B) blood splashed onto intact skin. 
C) inhalation of aerosols. 
D) accidental ingestion.

Question 14

Pasteurization achieves:

Accepted Answer

A) disinfection. 
B) sterilization. 
C) asepsis. 
D) filtration. 
A) disinfection. 
B) sterilization. 
C) asepsis. 
D) filtration.

Question 15

Alcohols use what mechanism to inactivate microorganisms?

Accepted Answer

A) Denature proteins. 
B) Destroy DNA. 
C) Denature RNA. 
D) Inhibit cell wall synthesis. 
A) Denature proteins. 
B) Destroy DNA. 
C) Denature RNA. 
D) Inhibit cell wall synthesis.

Question 16

All the following factors play a significant role in the selection and implementation of the appropriate method of disinfection except:

Accepted Answer

A) temperature. 
B) contact time. 
C) biofilms. 
D) humidity. 
A) temperature. 
B) contact time. 
C) biofilms. 
D) humidity.

Question 17

The main goal of handwashing is to:

Accepted Answer

A) sterilize a person's hand. 
B) increase the risk of passing on pathogens. 
C) eliminate transient flora. 
D) disinfect a person's hands. 
A) sterilize a person's hand. 
B) increase the risk of passing on pathogens. 
C) eliminate transient flora. 
D) disinfect a person's hands.

Question 18

The purpose of surgical hand scrubs and waterless hand rubs is to:

Accepted Answer

A) eliminate the transient flora and most of the resident flora on the skin. 
B) remove all physical dirt and some residential flora. 
C) remove all resident flora. 
D) remove all transient flora. 
A) eliminate the transient flora and most of the resident flora on the skin. 
B) remove all physical dirt and some residential flora. 
C) remove all resident flora. 
D) remove all transient flora.

Question 19

Before performing a phlebotomy, the phlebotomist will clean the area on a patient's arm with a substance before inserting the needle.This substance is called a(n):

Accepted Answer

A) disinfectant. 
B) sterilizer. 
C) antiseptic. 
D) bactericidal. 
A) disinfectant. 
B) sterilizer. 
C) antiseptic. 
D) bactericidal.

Question 20

The Joint Commission requires the following safety training to be documented in an employee's record except:

Accepted Answer

A) proper storage of gases. 
B) biosafety level training. 
C) bloodborne pathogen training. 
D) hazardous materials management. 
A) proper storage of gases. 
B) biosafety level training. 
C) bloodborne pathogen training. 
D) hazardous materials management.

Exam 4: Control of Microorganisms

A biosafety level 2 (BSL-2) level of containment is used for organisms that:

If this is present on a surface to be disinfected, it can shield microorganisms from the disinfectant or inactivate the disinfectant.What is this substance?

A Material Safety Data Sheet (MSDS) contains all the following information except:

All of the following are examples of personal protective equipment (PPE) except:

Which topical antiseptic disrupts the microbial cell membrane and precipitates the cellular contents?

The best way to care for your back is to prevent back injuries.All of the following are some ways to prevent back injuries except:

Routine handwashing in health care settings mandates washing at all the following times except:

All of the following organisms can typically cause infection from aerosolization of specimens except:

What two alcohols are effective in killing the hepatitis B virus (HBV)?

Universal/Standard Precautions require that:

After using the phone, the laboratory tech sprayed the receiver with a chemical spray.This process will kill a defined scope of microorganisms.What is this process called?

Biosafety level 4 (BSL-4) organisms are dangerous, exotic, and pose an increased risk of aerosol-transmitted infections and life-threatening disease.Two examples of BSL-4 organisms are:

Processing of patient specimens and handling of actively growing cultures of microorganisms puts an employee at risk of potential contact with the infectious agent through all the following routes except:

Pasteurization achieves:

Alcohols use what mechanism to inactivate microorganisms?

All the following factors play a significant role in the selection and implementation of the appropriate method of disinfection except:

The main goal of handwashing is to:

The purpose of surgical hand scrubs and waterless hand rubs is to:

Before performing a phlebotomy, the phlebotomist will clean the area on a patient's arm with a substance before inserting the needle.This substance is called a(n):

The Joint Commission requires the following safety training to be documented in an employee's record except:

Bacterial Cell Structure, Physiology, Metabolism, and Genetics

Host-Parasite Interaction

The Laboratory Role in Infection Control

Performance Improvement in the Microbiology Laboratory

Specimen Collection and Processing

Microscopic Examination of Materials From Infected Sites

Use of Colony Morphology for the Presumptive Identification of Microorganisms

Biochemical Identification of Gram-Negative Bacteria

Immunodiagnosis of Infectious Diseases

Applications of Molecular Diagnostics

Antimicrobial Agent Mechanisms of Action and Resistance

Antimicrobial Susceptibility Testing

Staphylococci

Streptococcus, Enterococcus, and Other Catalase-Negative, Gram-Positive Cocci

Aerobic Gram-Positive Bacilli

Neisseria Species and Moraxella Catarrhalis

Haemophilus and Other Fastidious Gram-Negative Bacilli

Enterobacteriaceae

Vibrio, Aeromonas, Plesiomonas, and Campylobacter Species

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Anaerobes of Clinical Importance

The Spirochetes

Chlamydia, Rickettsia and Similar Organisms

Mycoplasma and Ureaplasma

Mycobacterium Tuberculosis and Nontuberculous Mycobacteria

Medically Significant Fungi

Diagnostic Parasitology

Clinical Virology

Agents of Bioterror and Forensic Microbiology

Biofilms: Architects of Disease

Upper and Lower Respiratory Tract Infections

Skin and Soft Tissue Infections

Gastrointestinal Infections and Food Poisoning

Infections of the Central Nervous System

Bacteremia and Sepsis

Urinary Tract Infections

Genital Infections and Sexually Transmitted Diseases

Infections in Special Populations

Zoonotic Diseases

Ocular Infections

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