Question 1

AIDS stands for

Accepted Answer

AIDS stands for Acquired Immunodeficiency Syndrome.

Question 2

What is a common type of cancer NOT associated with AIDS?

Accepted Answer

While AIDS can increase the risk of developing certain cancers (such as Kaposi sarcoma and lymphomas), colorectal cancer is not commonly associated with AIDS.

Question 3

Your friend Dean has been battling HIV for several years.Recently you have noticed purple blotches appearing on his skin.He is most likely dealing with

Accepted Answer

The purple blotches on his skin indicate Kaposi's sarcoma, which is a type of skin cancer commonly found in people with HIV. Mycobacterium avium intracellulare and Pneumocystis carinii pneumonia are both opportunistic infections seen in people with HIV, but do not present with purple skin blotches. Lou Gehrig's disease, or ALS, is a neurological disorder and is not related to HIV or the appearance of skin lesions.

Question 4

Which of the following statements about the leukocytes is false?

Accepted Answer

Platelets are a type of blood cell involved in clotting and are not considered leukocytes, which are white blood cells involved in immune response.

Question 5

In a healthy immune system,antibodies function to

Accepted Answer

Antibodies bind to antigens and mark them for destruction by immune cells such as macrophages and natural killer cells. They do not create additional macrophages or engulf foreign particles themselves, and do not directly signal the spleen to produce more leukocytes.

Question 6

AIDS is called a syndrome because

Accepted Answer

AIDS is classified as a syndrome because it is characterized by a group of symptoms that appear together and indicate a specific condition. In the case of AIDS, the symptoms are related to the destruction of the immune system, which can lead to a wide range of health problems.

Question 7

Manoj has sexual encounters with multiple partners.He contracts HIV and lives with it for almost seven years during which he exhibits little to no signs of a terminal illness.He even gets a home test done and the result turns out to be HIV negative.Which of the following is a safe conclusion that can be made from the characteristics exhibited by Manoj?

Accepted Answer

The fact that Manoj has had multiple sexual partners and has contracted HIV indicates that his infection is highly contagious and can spread to others. The fact that he has lived with it for seven years with little to no symptoms indicates that he may be a carrier of the virus without showing any outward signs of illness. The fact that he tested HIV negative in a home test does not necessarily mean that he is not infected, as home tests are not always reliable and Manoj may have been in the window period during which the virus may not show up in a test. Therefore, it is important to take precautions and practice safe sex to prevent the spread of HIV.

Question 8

Kaposi's sarcoma refers to a cancer of the

Accepted Answer

Kaposi's sarcoma is a cancer that affects the cells that line the lymph or blood vessels, typically appearing as tumors on the skin. Therefore, the correct choice is C.

Question 9

How did scientific awareness of HIV begin?

Accepted Answer

Physicians in major U.S. cities began to notice rare diseases in healthy young men, which raised concerns and curiosity about the underlying cause. This led to the first cases of AIDS being reported in 1981 and set off a wave of research to determine the cause of the disease.

Question 10

At first,AIDS within the United States seemed to be confined principally to three groups: gay men,Haitians,and people with

Accepted Answer

Hemophilia is a genetic disorder that affects the blood's ability to clot, and people with hemophilia often require blood transfusions. In the early days of the AIDS epidemic, blood transfusions were not screened for HIV, which meant that people with hemophilia were at a higher risk of contracting the virus. Therefore, AIDS was also found in people with hemophilia, in addition to gay men and Haitians. Eating disorders and haemochromatosis are not associated with AIDS.

Question 11

Which of the following engulfs foreign particles?

Accepted Answer

Macrophages are a type of white blood cell that engulf and digest foreign particles, such as bacteria and viruses, in our body.

Question 12

Lymphocytes include

Accepted Answer

Lymphocytes are a type of white blood cell that are responsible for the immune response. They include B cells and several types of T cells, which are involved in recognizing and responding to foreign pathogens. Antigens and antibodies are molecules involved in the immune response, but they are not themselves lymphocytes. Macrophages and leukocytes are other types of white blood cells, but they are not specifically classified as lymphocytes.

Question 13

The process by which a person develops antibodies is called

Accepted Answer

Seroconversion is the process by which a person develops antibodies in response to an infection or vaccination. This involves a series of events that result in the production of specific immunoglobulins, which can then help to fight off the pathogen in question. Anastalsis refers to the process of breaking down large molecules into smaller ones, while insemination is the introduction of sperm into the female reproductive tract. Opsonisation is the process by which antibodies or other proteins bind to pathogens to facilitate their uptake and destruction by immune cells.

Question 14

Gordon suddenly loses a great deal of weight,feels very weak,and has persistent diarrhea.This condition is called

Accepted Answer

Wasting syndrome is a condition commonly seen in individuals with HIV/AIDS, where they experience a significant loss of weight, weakness, and diarrhea. This is caused by the virus attacking the metabolic and digestive systems of the body, leading to malabsorption of nutrients and inability to maintain a healthy weight. Cytomegalovirus, gonorrhea, and syphilis do not typically present with these symptoms.

Question 15

Charles has been experiencing changes in his moods and,consequently,in his behavior.He has been having difficulty moving around and frequently forgets what he was about to do.What clinical condition associated with AIDS is he suffering from?

Accepted Answer

Charles is exhibiting symptoms of cognitive impairment and behavioral changes, which are typical of AIDS dementia complex (ADC), also called HIV-associated neurocognitive disorder (HAND). This condition can affect up to 50% of people living with HIV, particularly in advanced stages of the disease. Wasting syndrome (A) refers to the involuntary loss of more than 10% of body weight, together with chronic diarrhea or weakness, which is also common in AIDS. AIDS lymphoma (B) is a type of cancer that affects the lymphatic system and is more likely to occur in people with weakened immune systems, including those with HIV/AIDS. Cytomegalovirus (D) is a common viral infection that can cause serious complications in people with suppressed immune function, but it typically affects the eyes, digestive tract, or lungs, rather than the brain.

Question 16

Maury,who is HIV positive,is diagnosed with a type of cancer that is commonly associated with AIDS.In this case,Maury is most likely to be diagnosed with

Accepted Answer

Cancer of the lymphatic system, also known as lymphoma, is commonly associated with AIDS due to the weakened immune system. Individuals with HIV are at higher risk for developing this type of cancer. The other types of cancer listed are not commonly associated with AIDS.

Question 17

Which of the following statements is true of AIDS?

Accepted Answer

AIDS is the final stage of HIV infection, during which the immune system becomes severely damaged and susceptible to opportunistic infections. A CD4 count below 200 is one of the criteria for an AIDS diagnosis, but simply having a CD4 count above 200 does not mean a person has AIDS. AIDS is not inherited, and being HIV positive does not necessarily mean a person has progressed to the AIDS stage.

Question 18

Leukocytes are a type of

Accepted Answer

Leukocytes are also known as white blood cells, which play a critical role in the body's immune system. They help to fight off infections and foreign invaders, and there are several different types of leukocytes with various functions. PlasmA is not a type of blood cell, and red blood cells and platelets are not considered leukocytes.

Question 19

To say that AIDS is an acquired disease means that it is

Accepted Answer

An acquired disease means that it is not present at birth and not inherited from parents. AIDS is caused by a virus transmitted from person to person, usually through sexual contact or sharing needles, making it an acquired disease but not easily curable or transmitted.

Question 20

Miranda just received the results of her blood test,and it showed the presence of HIV antibodies and a T-cell count below 200.This means that Miranda

Accepted Answer

The answer of Miranda just received the results of her...

Quiz 16: Hiv and Aids