Question 1 (1 point) Slow allergic responses are shown in which of the following
ID: 259272 • Letter: Q
Question
Question 1 (1 point)
Slow allergic responses are shown in which of the following?
Question 1 options:
acute reactions to insect stings
skin tests for tuberculosis
anaphylaxis
asthma
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Question 2 (1 point)
Which one of the following characteristics is undesirable for an antibiotic being considered for use as a chemotherapeutic agent?
Question 2 options:
produces little change in the intestinal microorganisms
enters tissue
is highly microbicidal
produces few or no disease effects
becomes inactivated by hydrochloric acid
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Question 3 (1 point)
The development of antibiotic resistance can be minimized by which of the following?
Question 3 options:
avoiding overuse of antibiotics
using a cocktail of many antibiotics
using sufficiently high dosages of antibiotic initially
switching to another antibiotic as soon as an organism shows signs of developing resistance
all of the above
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Question 4 (1 point)
Which of the following might weaken the immune system?
Question 4 options:
surgery
immunosuppressive agents
another infection
malnutrition
all of the above
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Question 5 (1 point)
Taking a patient out of isolation would be most appropriate for which one of the following?
Question 5 options:
a patient who has a highly contagious disease
a patient who has cholera or some other intestinal infection
a patient who has tuberculosis
a patient who has an STD
a heart transplant patient who is being treated with immunosuppressive agents
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Question 6 (1 point)
Which one of the following statements is false?
Question 6 options:
Casual contact does not cause AIDS.
The AIDS virus can be acquired by an infant born to an infected mother.
If a person infected with HIV has no disease symptoms, that person cannot transmit the virus to other persons.
The HIV virus can be found in the blood, semen, or vaginal fluid.
as a result of damage to the immune system by the HIV virus, an AIDS patient is unable to resist infection by microorganisms of low pathogenicity.
acute reactions to insect stings
skin tests for tuberculosis
anaphylaxis
asthma
Explanation / Answer
1. Anaphylactic response occurs within 3-30 mins after exposure to allergens and may lead to death of the individual. Insect stings lead to development of a small red lump on skin relatively fast. However, Asthma is due to inflammation of the lungs. Hence, it takes a longer time to develop. Tuberculin skin tests detect delayed hypersensitivity response, which is not an allergic response as it does not involved IgE antibodies.
Right option is Asthma
2. The treatment of a disease with a chemical agent is called chemotherapy. Antibiotics are generally administered by an oral route. Hence, they should not be inactivated by hydrochloric acid.
Right option is becomes inactivated by hydrochloric acid.
3. Antibiotic resistance is generated in an organism when the drug induces mutations in the organism. The microbe will mutate and be resistant to antibiotic when it is exposed to the drug for long period.
Right option is avoid overuse of antibiotic.
4. Surgery creates stress on the immune system. Hence, it will suppress the immune system. It breaks the skin and underlying tissues and allows bacteria to gain entry into the body. Immunosuppressive agents will suppress the immune system and are therefore used in grafts. Malnutrition will create stress while another infection will burden the immune system. Hence, both will suppress the immune system.
Right option is all of the above.
5. Sexually transmitted infection (STI/STD) are not transmitted through sexual contact. Hence, these patients do not require isolation. Cholera requires isolation as the patient may vomit and spread infection. Heart transplant patients need isolation to prevent infections.
Right choice is a person who has STD.
6. HIV virus can be transmitted only if it comes in contact with blood circulation. Hence, it can enter the blood only when there is damage to skin. It is not spread by casual contact.
Right option is Casual contact does not cause AIDS.