Question 1

The Epstein-Barr virus (EBV) is responsible for which infection?&#10;A) Herpes zoster&#10;B) Shingles&#10;C) Oral hairy leukoplakia&#10;D) Chickenpox

Accepted Answer

The Epstein-Barr virus (EBV) is responsible for causing oral hairy leukoplakia, which is a viral infection that affects the mouth and can cause white patches or lesions on the tongue and inside of the cheeks. It is commonly seen in individuals with weakened immune systems, such as those with HIV/AIDS. The other options listed are caused by different viruses.

Question 2

Infectious pathogens carried in the blood and body fluids are:&#10;A) bloodborne&#10;B) parenteral&#10;C) virulent&#10;D) acquired

Accepted Answer

Pathogens that are carried in the blood and body fluids are commonly referred to as bloodborne pathogens. This includes viruses like HIV and hepatitis B and C, which can be transmitted through contact with infected blood. Other body fluids, such as semen and vaginal secretions, can also transmit bloodborne pathogens.

Question 3

A seropositive result indicates that the patient is infected with:&#10;A) hepatitis B (HBV)&#10;B) herpes zoster virus (HZV)&#10;C) herpes simplex virus (HSV)&#10;D) human immunodeficiency virus (HIV)

Accepted Answer

A seropositive result typically refers to a blood test that confirms the presence of antibodies to a particular virus or disease. In this case, a seropositive result would suggest that the patient has been infected with HIV.

Question 4

Handling contaminated instruments or touching contaminated surfaces facilitates:&#10;A) direct transmission&#10;B) indirect transmission&#10;C) airborne transmission&#10;D) spatter transmission

Accepted Answer

Handling contaminated instruments or touching contaminated surfaces facilitates indirect transmission, as the pathogen can be transferred from the contaminated item or surface to a person's hands and then further spread to other surfaces or individuals.

Question 5

By law, all clinical dental personnel are entitled to a free HBV vaccination within:&#10;A) 5 days of position assignment&#10;B) 10 days of position assignment&#10;C) 20 days of position assignment&#10;D) 30 days of position assignment

Accepted Answer

According to OSHA regulations, employers must offer the hepatitis B vaccination series to all employees who have occupational exposure to blood or other potentially infectious materials within 10 days of initial assignment to a job where exposure may occur.

Question 6

Microorganisms that produce disease in humans are known as:&#10;A) nonpathogenic&#10;B) pathogens&#10;C) pasteurized&#10;D) spores

Accepted Answer

Microorganisms that produce disease in humans are called pathogens. Nonpathogenic microorganisms do not cause disease, pasteurization is a process of heating to kill microorganisms, and spores are a type of microorganism that can be pathogenic or nonpathogenic.

Question 7

Which microorganism is LEAST likely to be bacterial?&#10;A) Spherical&#10;B) Rod&#10;C) Spiral&#10;D) Helical

Accepted Answer

Helical shapes are more characteristic of certain viruses, such as the tobacco mosaic virus, rather than bacteria. Bacteria are typically described as spherical (cocci), rod (bacilli), or spiral in shape.

Question 8

Match each item or lesion with the associated mode of disease transmission.&#10;&#10;Contaminated instrument&#10;A)Direct&#10;B)Indirect&#10;C)Airborne&#10;D)Bloodborne&#10;E)Parenteral&#10;

Accepted Answer

The answer of Match each item or lesion with the...

Question 9

The symptoms of an acute infection:&#10;A) are mild to moderate&#10;B) are usually short in duration&#10;C) lay dormant or latent for years&#10;D) appear gradually, long after the initial infection

Accepted Answer

Acute infections are characterized by a sudden onset of symptoms that are usually short in duration, ranging from a few days to a few weeks. The symptoms can vary in severity but are typically more severe than those of a chronic infection. A chronic infection may lay dormant or latent for years, and the symptoms may appear gradually, long after the initial infection. Therefore, options A, C, and D are not the best choices for describing the symptoms of an acute infection.

Question 10

Which disease is NOT transmitted from person to person?&#10;A) Syphilis&#10;B) Legionnaires' disease&#10;C) Tuberculosis&#10;D) Herpes labialis

Accepted Answer

Legionnaires' disease is caused by Legionella bacteria, which are typically spread through water systems, not from person to person.

Question 11

Which life form is the most resistant?&#10;A) Virulent fungi&#10;B) Active bacteria&#10;C) Bacillus spore&#10;D) Bloodborne virus

Accepted Answer

The answer of Which life form is the most resistant?&#10;A)...

Question 12

The degree to which an organism produces disease is:&#10;A) virulence&#10;B) bioburden&#10;C) transmission&#10;D) susceptibility

Accepted Answer

The answer of The degree to which an organism produces...

Question 13

Bacterial endocarditis is prevented by which means?&#10;A) Vaccination&#10;B) Prophylactic antibiotics&#10;C) Proper sanitation procedures&#10;D) Stress-reduction protocols

Accepted Answer

The answer of Bacterial endocarditis is prevented by which means?&#10;A)...

Question 14

Which disease poses the greatest threat to dental personnel?&#10;A) Measles&#10;B) HIV/AIDS&#10;C) Hepatitis B (HBV)&#10;D) Tuberculosis

Accepted Answer

The answer of Which disease poses the greatest threat to...

Question 15

Dental personnel should be vaccinated against which form of viral hepatitis?&#10;A) A&#10;B) B&#10;C) C&#10;D) D

Accepted Answer

The answer of Dental personnel should be vaccinated against which...

Question 16

Oral candidiasis is an opportunistic infection caused by:&#10;A) yeast&#10;B) water&#10;C) protozoa&#10;D) bacteria

Accepted Answer

The answer of Oral candidiasis is an opportunistic infection caused...

Question 17

Match each item or lesion with the associated mode of disease transmission.&#10;&#10;Human bite&#10;A)Direct&#10;B)Indirect&#10;C)Airborne&#10;D)Bloodborne&#10;E)Parenteral&#10;

Accepted Answer

The answer of Match each item or lesion with the...

Question 18

Match each item or lesion with the associated mode of disease transmission.&#10;&#10;Infectious lesion&#10;A)Direct&#10;B)Indirect&#10;C)Airborne&#10;D)Bloodborne&#10;E)Parenteral&#10;

Accepted Answer

The answer of Match each item or lesion with the...

Question 19

A 41-year-old male presents for an initial dental examination; his medical history indicates unexplained weight loss, fatigue, and night sweats. He coughs and spits frequently. Which infectious disease is consistent with these symptoms?

A) Tuberculosis
B) Tetanus
C) Infectious mononucleosis
D) Measles

Accepted Answer

The answer of A 41-year-old male presents for an initial...

Question 20

Match each item or lesion with the associated mode of disease transmission.&#10;&#10;Drawer handle&#10;A)Direct&#10;B)Indirect&#10;C)Airborne&#10;D)Bloodborne&#10;E)Parenteral&#10;

Accepted Answer

The answer of Match each item or lesion with the...

Question 21

Match each disease with the type of infection.&#10;&#10;Common cold&#10;A)Acute&#10;B)Chronic&#10;C)Latent&#10;D)Opportunistic&#10;

Accepted Answer

The answer of Match each disease with the type of...

Question 22

Match each disease with the type of infection.&#10;&#10;Oral herpes simplex infection&#10;A)Acute&#10;B)Chronic&#10;C)Latent&#10;D)Opportunistic&#10;

Accepted Answer

The answer of Match each disease with the type of...

Question 23

Match each organ or item with the form of contact with which it is associated.&#10;&#10;Eye&#10;A)Inhalation&#10;B)Ingestion&#10;C)Mucous membrane&#10;

Accepted Answer

The answer of Match each organ or item with the...

Question 24

Tuberculosis is always a bloodborne disease.

Accepted Answer

The answer of Tuberculosis is always a bloodborne disease....

Question 25

Bacterial endocarditis is a bacterial infection within the heart chamber.

Accepted Answer

The answer of Bacterial endocarditis is a bacterial infection within...

Question 26

Match each organ or item with the form of contact with which it is associated.&#10;&#10;Hand piece aerosol&#10;A)Inhalation&#10;B)Ingestion&#10;C)Mucous membrane&#10;

Accepted Answer

The answer of Match each organ or item with the...

Question 27

Match each organ or item with the form of contact with which it is associated.&#10;&#10;Handled food&#10;A)Inhalation&#10;B)Ingestion&#10;C)Mucous membrane&#10;

Accepted Answer

The answer of Match each organ or item with the...

Question 28

Viruses can live and multiply outside a host cell.

Accepted Answer

The answer of Viruses can live and multiply outside a...

Question 29

A highly resistant form of bacteria is called a spore.

Accepted Answer

The answer of A highly resistant form of bacteria is...

Question 30

Match each item or lesion with the associated mode of disease transmission.&#10;&#10;High-speed aerosol&#10;A)Direct&#10;B)Indirect&#10;C)Airborne&#10;D)Bloodborne&#10;E)Parenteral&#10;

Accepted Answer

The answer of Match each item or lesion with the...

Question 31

Tuberculosis is the leading cause of death from infectious diseases.

Accepted Answer

The answer of Tuberculosis is the leading cause of death...

Question 32

Match each disease with the type of infection.&#10;&#10;Hepatitis B virus (HBV) infection&#10;A)Acute&#10;B)Chronic&#10;C)Latent&#10;D)Opportunistic&#10;

Accepted Answer

The answer of Match each disease with the type of...

Question 33

Match each disease with the type of infection.&#10;&#10;Pneumonia&#10;A)Acute&#10;B)Chronic&#10;C)Latent&#10;D)Opportunistic&#10;

Accepted Answer

The answer of Match each disease with the type of...

Deck 5: Disease Transmission