✨✨✨✨Theory Quiz Week 2

Hepatitis is inflammation of which organ?

a. liver

b. kidneys

c. lungs

d. heart

a. liver

A. Tuberculosis is a drug-resistant illness. B. Drug resistance may mean it is necessary to prescribe several drugs to kill all the microorganisms.

a. statement A is correct; statement B is correct

b. statement A is correct; statement B is incorrect

c. statement A is incorrect; statement B is correct

d. statement A is incorrect; statement B is incorrect

a. statement A is correct; statement B is correct

Herpes simplex I can occur in which of the following areas?

a. eyes only

b. lips only

c. genitals only

d. lips and genitals only

e. lips, genitals, fingers, and eyes

e. lips, genitals, fingers, and eyes

Which of the following is herpetic whitlow?

a. herpes of the finger

b. herpes of the eye

c. shingles

d. hepatitis that has settled in the lungs

a. herpes of the finger

Which of the following is the primary transmission route for tuberculosis (TB)?

a. inhalation

b. inoculation (blood to blood)

c. mucous membranes

d. vector

a. inhalation

The herpes virus remains latent in the nerves after the initial infection and may reoccur when triggered by which of the following?

a. stress only

b. dental treatment (trauma) only

c. stress and dental trauma

d. neither stress nor dental trauma

c. stress and dental trauma

In which case is deferral of dental treatment illegal?

a. when a patient has active tuberculosis

b. when a patient presents with a herpetic lesion on the lip

c. when a patient states that he or she has HIV on the health history

d. when a patient presents with a herpetic lesion on the fingers.

c. when a patient states that he or she has HIV on the health history

A. The incubation period is the interval between inoculation by an infectious agent and the first clinical signs or symptoms of the disease. B. The window period is the time between exposure and the presence of detectable serum antibodies.

a. statement A is correct; statement B is correct

b. statement A is correct; statement B is incorrect

c. statement A is incorrect; statement B is correct

d. statement A is incorrect; statement B is incorrect

a. statement A is correct; statement B is correct

What is it called when all human blood and certain body fluids are treated as if known to be infectious with blood-borne pathogens?

a. virulence

b. standard precautions

c. vectoring

d. cross-contamination

b. standard precautions

Cross-contamination refers to the spread of microorganisms from one source to another; this may include which of the following?

a. person to person, person to inanimate object, and inanimate object to person

b. person to inanimate object only

c. inanimate object to person only

d. person to person only

e. person to inanimate object and inanimate object to person only

a. person to person, person to inanimate object, and inanimate object to person

What is the best way to break the chain of transmission of hepatitis A?

a. handwashing

b. not sharing contaminated needles

c. practicing safe sex

d. avoiding blood-to-blood contact with an infected individual

e. wearing a mask while treating patients

a. handwashing

Which two infections are caused by the varicella-zoster virus?

a. chickenpox and shingles

b. HIV and herpes

c. hepatitis and cytomegalovirus

d. tuberculosis and HIV

a. chickenpox and shingles

Which link in the chain of infection is the site where the invading organisms live and multiply?

a. reservoir

b. port of exit

c. port of entry

d. mode of transmission

a. reservoir

A. HIV is attacks the body's immune system. B. The incubation period for HIV is typically no longer than 2 years from establishment of infection to appearance of symptoms of AIDS.

a. statement A is correct; statement B is correct

b. statement A is correct; statement B is incorrect

c. statement A is incorrect; statement B is correct

d. statement A is incorrect; statement B is incorrect

b. statement A is correct; statement B is incorrect

Which virus can lead to cirrhosis?

a. chickenpox

b. cytomegalovirus

c. herpes simplex I

d. AIDS

e. Hepatitis B

e. Hepatitis B

Which of the following is a biological contaminant that occurs in solid or liquid form. is invisible, and may remain suspended in the air for long periods?

a. aerosol

b. spatter

c. pathogen

d. reservoir

a. aerosol

Which types of hepatitis are spread through blood transmission?

a. hepatitis A

b. hepatitis A and B

c. hepatitis B and C

d. Hepatitis E

c. Hepatitis B and C

Which type of hepatitis is present only when the person has hepatitis B also?

a. Hepatitis A

b. Hepatitis C

c. Hepatitis D

d. Hepatitis E

c. Hepatitis D

Which types of hepatitis have immunizations available?

a. Hepatitis A and B

b. Hepatitis B and C

c. Hepatitis B and D

d. Hepatitis A and E

a. Hepatitis A and B

In what year was serological testing of blood for HIV instituted?

a. 1985

b. 1987

c. 1965

d. 1975

e. 1977

a. 1985

Of the six essential links in the chain of disease transmission, hands may serve as which three?

A.) a means of transmission, a reservoir, and a port of entry

B.) an infectious agent, a reservoir, and a port of exit

C.) a port of entry, a means of transmission, and a susceptible host

D.) a means of transmission, a port of entry

E.) a reservoir, a means of transmission, and an infectious agent

A. means of transmission, a reservoir, and a port of entry

A. Handwashing is not considered the most important single procedure for the prevention of cross-contamination B. Hands should not be washed before gloving and after gloving removal.

A. Statement A is true and Statement B is false

B. State A is false, and statement B is true

C. Both statements are true

D. Both statements are false

D. Both statements are false

Which of the following is (are) not true concerning resident bacteria?

A. They shed with exfoliated surface cells

B. They are more susceptible to destruction by disinfection procedures

C. They are relatively unstable bacteria

D. They inhabit deeper areas in the ducts of skin glands

A. They shed with exfoliated surface cells

D. They inhabit deeper areas in the ducts of skin glands

Which method of handwashing is recommended at the beginning and end of each day?

A. Surgical asepsis

B. Routine handwash

C. Antiseptic hand rub

D. Antiseptic handwash

D. Antiseptic handwash

When should the face mask be changed?

A. Every hour

B. For each patient

C. When it becomes wet

D. For each patient, when it becomes wet

D. For each patient, when it becomes wet

Which of the following is NOT an indication for routine hand washing?

A. Use method during patient care

B. Use method before and after breaks

C. Use at the beginning and end of each day

D. Use method before and after using the restroom

C. Use at the beginning and end of each day

Which of the following groups are at high risk of developing a latex allergy?

A. People with spina bifida

B. People with mango allergies

C. People with avocado allergies

D. Healthcare workers

B. People with mango allergies

C. People with avocado allergies

D. Healthcare workers

Which of the following groups all contain latex in a dental setting?

A. Radiograph film, masks, paper towel, gown

B. Gloves, paper towel, soap dispenser, bitewing tabs

C. Nitrile gloves, nitrous nose piece and hose, dental chair, light switch

D. Gloves, nitrous nose piece and hose, rubber dam, O-ring for ultrasonic

D. Gloves, nitrous nose piece and hose, rubber dam, O-ring for ultrasonic

Which of the following is an autoclave?

A. It is a chemical vapor sterilizer.

B. It is sterilization achieved by steam under pressure.

C. It is a dry heat sterilizer.

D. It is a washer/thermal disinfector

B. It is sterilization achieved by steam under pressure.

Of the following methods of sterilization, which one requires the longest time to complete?

A. Chemical vapor

B. Dry heat

C. Gravity displacement autoclave

D. Prevacuum autoclave

B. Dry heat

Preprocedural rinsing and other oral hygiene measures help to prevent the spread of communicable diseases. Preprocedural rinsing and other oral hygiene measures decrease the number of microorganisms in the oral cavity.

A. Both statements are true

B. The first statement is true and the second statement is false

C. The first statement is false, and the second statement is true

D. Both statements are false

A. Both statements are true

Which of the following is the proper order for processing contaminated instruments?

A. Place cassette in ultrasonic cleaner, rinse and dry instruments, package for sterilizing

B. Package for sterilizing, place cassette in ultrasonic cleaner, rinse and dry instruments, hand scrub as necessary

C. Rinse and dry instruments, package for sterilizing, hand scrub as necessary, place cassette in ultrasonic cleaner

D. Hand scrub as necessary, place cassette in ultrasonic cleaner, package for sterilizing, rinse and dry instruments

A. Place cassette in ultrasonic cleaner, rinse and dry instruments, package for sterilizing

Which of the following statements is true regarding processing instruments prior to sterilization?

A. Using a professional instrument washer is the best way to clean instruments

B. Manual cleaning of instruments is safer than ultrasonic processing

C. It is best to clean instruments in the same sink used for hand washing

D. Manual scrubbing of instruments is the preferred way to clean instruments

A. Using a professional instrument washer is the best way to clean instruments

Of the following, which is the safest, most effective instrument packaging method?

A. Package in unmarked bags

B. Packaged loosely so that sterilization of all instruments can occur

C. No packaging--instruments sterilize more completely without packaging

D. Tightly pack as many instruments as possible into a cassette for efficiency

B. Packaged loosely so that sterilization of all instruments can occur

Which of the following should you do when cleaning and disinfecting environmental surfaces in the operatory?

A. Use small sponges

B. Spray/wipe and leave the surfaces wet when finished

C. Do not scrub vigorously

D. Use only one sponge at a time

B. Spray/wipe and leave the surfaces wet when finished

Criteria for the selection of an ideal disinfectant include all of the following except one. Which one is the exception?

A. Bactericidal

B. EPA approval

C. Unique odor

D. Virucidal

C. Unique odor

Which of the following are characteristics of an ideal disinfectant?

A. Economical and broad-spectrum antimicrobial

B. Nonstaining and unique odor

C. Nonirritating to human tissue and no residual effect on treated surfaces

D. Slow duration and toxic

E. May corrode metallic surfaces and causes disintegration of plastics and fabric

A. Economical and broad-spectrum antimicrobial

A. High-level disinfectants inactivate spores and all forms of bacteria, fungi, and viruses. B. Intermediate-level disinfectants inactivate all forms of microorganisms but do not destroy spores.

A. Statement A is correct and statement B is correct.

B. Statement A is correct and statement B is incorrect.

C. Statement A is incorrect and statement B is correct.

D. Statement A is incorrect and statement B is incorrect

A. Statement A is correct and statement B is correct.

Which of the following should be done annually?

A. HBV vaccine booster

B. Tuberculin skin test (Mantoux)

C. Tuberculin skin test and influenza vaccine

D. HBV booster, tuberculin skin test, and influenza vaccine

C. Tuberculin skin test and influenza vaccine

Which of the following would not be correct procedure after an exposure incident?

A. Immediately wash the wound with soap and water

B. Squeeze the wound to express as much blood as possible

C. Report to designated official and complete an incident report as required

D. Follow the required predetermined, posted procedures of the clinic, institution, or other workplace

B. Squeeze the wound to express as much blood as possible

Which of the following are basic immunizations recommended for healthcare workers?

A. Hepatitis B vaccine; measles, mumps, and rubella vaccines; and influenza vaccine

B. Measles, mumps, and rubella vaccines

C. Influenza vaccine

D. Hepatitis B vaccine

A. Hepatitis B vaccine; measles, mumps, and rubella vaccines; and influenza vaccine

In the classification of inanimate objects, which of the following is considered noncritical?

A. Explorers

B. Mirror

C. Safety eyewear

D. Probes

C. Safety eyewear

When using dry heat sterilization, a temperature of __________ is maintained for 2 hours.

A. 120°C

B. 140°C

C. 300°F

D. 320°F

D. 320°F

A) High-level disinfectants inactivate spores and all forms of bacteria, fungi, and viruses. B) Intermediate-level disinfectants inactivate all forms of microorganisms but do not destroy spores.

A. Statement A is true and statement B is false.

B. Statement A is false and statement B is true.

C. Both statements are true.

D. Both statements are false.

C. Both statements are true.

A) Organic debris left on an instrument may prevent sterilization from occurring. B) In a dry heat sterilizer timing begins when instruments are placed in the sterilizer and it is turned on.

A. Statement A is true and statement B is false.

B. Statement A is false and statement B is true.

C. Both statements are true.

D. Both statements are false.

A. Statement A is true and statement B is false.

A) Preprocedural rinsing and other oral hygiene measures help to prevent the spread of communicable diseases. B) Preprocedural rinsing and other oral hygiene measures decrease the number of microorganisms in the oral cavity.

A. Statement A is true and statement B is false.

B. Statement A is false and statement B is true.

C. Both statements are true.

D. Both statements are false.

C. Both statements are true.

In the classification of inanimate objects, which of the following is considered semi-critical?

a) Light handles

b) Countertops

c) Explorers

d) Mirror

d) mirror

Utility or heavy-duty gloves are used for which of the following procedures?

A. Examination of the patient's extraoral areas

B. Examination of the intraoral cavity (mouth)

C. Cleanup and setup of the dental operatory only

D. Processing of contaminated dental instruments only

E. Cleanup and setup of the dental operatory and processing of contaminated dental instruments

E. Cleanup and setup of the dental operatory and processing of contaminated dental instruments

Which of the following are characteristics of an ideal disinfectant?

A. Economical and broad-spectrum antimicrobial

B. Nonstaining and unique odor

C. Nonirritating to human tissue and no residual effect on D. treated surfaces

E. Slow duration and toxic

F. May corrode metallic surfaces and causes disintegration of plastics and fabric

A. Economical and broad-spectrum antimicrobial

Which of the following is a disadvantage of a chemical vapor sterilizer?

a) Rust-free operation for carbon steel instruments

b) Need for adequate ventilation

c) A relatively short total cycle

d) Ease of operation

b) Need for adequate ventilation

Which of the following is an advantage of sterilization by steam under pressure?

A. It will not corrode carbon steel instruments.

B. It is economical.

C. It is suitable for oils or powders.

D. It is effective for small metal instruments enclosed in special containers.

B. It is economical.

Which of the following is the best recommendation for preparation of disinfectants?

A. Follow the manufacturer's directions.

B. Each clinic day prepare new solution with warm tap water.

C. At the beginning of each week dispose of the previous week's solution and prepare a new solution.

D. Combine two solutions to active disinfectant solution and keep it for 30 days.

E. Take previous solution and add new solution to it to make up enough for the day.

A. Follow the manufacturer's directions.

Which of the following is the least preferred method of precleaning instruments before sterilization?

A. Manual cleaning

B. Washer/thermal disinfector

C. Ultrasonic processing

D. All precleaning methods are equally preferable.

A. Manual cleaning

Which of the following is true of an autoclave?

A. It is a chemical vapor sterilizer.

B. It is sterilization achieved by steam under pressure.

C. It is a dry heat sterilizer.

D. It is a washer/thermal disinfector

B. It is sterilization achieved by steam under pressure.

Which of the following statements is true?

A. Autoclaving at a temperature of 160°F may destroy the sharp edges of cutting instruments.

B. Indicator tape does not serve to test for true sterilization.

C. Instruments will be sterilized in an ultrasonic machine.

D. Oils, waxes, and powders must be sterilized in a moist heat machine.

D. Oils, waxes, and powders must be sterilized in a moist heat machine.

Which of the following would not be correct procedure after an exposure incident?

a) Immediately wash the wound with soap and water.

b) Squeeze the wound to express as much blood as possible.

c) Report the exposure to the designated official and complete an incident report as required.

d) Follow the required predetermined, posted procedures of the clinic, institution, or other workplace.

b) Squeeze the wound to express as much blood as possible.