Questions and Already Passed
Solutions.
Some immunocompetent cells will never be called to service in our lifetime. - Answer True
Which of the following is not a role of activated complement? - Answer prevention of
immediate hypersensitivity reactions
Cellular ingestion and destruction of particulate matter is called phagocytosis. - Answer True
The classical complement pathway involves antibodies. - Answer True
Monoclonal antibodies are used for the diagnosis of all of the following except ________. -
Answer juvenile diabetes
Virus infected cells secrete complement to "warn" other cells of the presence of virus. - Answer
False
Select the correct statement about immunodeficiency. - Answer The causative agent in
acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins.
Which of the following does not respond to cell-mediated immunity? - Answer pathogens in
the lumen of the stomach
Delayed hypersensitivities ________. - Answer include allergic contact dermatitis
The primary immune response ________. - Answer has a lag period while B cells proliferate
and differentiate into plasma cells
Fever is seldom beneficial because it speeds up the cellular metabolic rate and will not allow
antigen-antibody reactions to occur. - Answer False
B cells respond to the initial antigen challenge by ________. - Answer producing progeny
cells that include plasma cells and memory cells
, Both T cells and B cells must accomplish double recognition: They must simultaneously
recognize self and nonself to be activated. - Answer False
Clonal selection of B cells ________. - Answer results in the formation of plasma cells
Which of the following is not characteristic of the adaptive immune system? - Answer It is
specific for a given organ.
The ________ pulp of the spleen forms cuffs around the central arteries. - Answer white
The ________ are the simplest lymphoid organs and are found at the entrance to the pharynx. -
Answer tonsils
Describe the mechanisms by which lymphatic fluid is moved through the lymphatics. - Answer
Lymphatic fluid is moved through the lymphatics by the milking action of active skeletal
muscles, pressure changes within the thorax during breathing, valves to prevent backflow, and
pulsation of adjacent arteries.
After receiving penicillin intravenously, a 32-year-old male patient has an anaphylactic reaction.
The nurse understands that therapeutic management includes what critical items? - Answer
Therapeutic management includes speed in recognition of signs and symptoms of an
anaphylactic reaction because death can occur within minutes. Maintaining an open airway is
critical, because the bronchioles constrict, making it difficult to breathe. An agent to counteract
the extreme vasodilation, such as epinephrine, is often the key to survival.
When the white blood cell count is depressed, the classic signs of infection such as redness,
heat, and swelling are not manifested. In this case, the nurse should avoid administering aspirin.
Explain why. - Answer Aspirin would disguise a fever that would indicate infection.
Splenic ________ pulp is primarily concerned with immune functions of the spleen. - Answer
white
Describe the structural and functional relationship of the vessels of the vascular system and the
lymphatic system. - Answer Vessels of the vascular system are relatively high-pressure
conduits compared to vessels of the lymphatic system. The same mechanisms that promote
venous return in blood vessels act within lymphatic vessels. Because lymphatics are usually
packaged together in connective tissue sheaths with blood vessels, the pulsating expansions of
the nearby arteries also promote lymph flow.
What is the consequence of obstruction of the lymphatics? - Answer Obstruction of the
lymphatics results in edema distal in the body to the obstruction