ATI LPN
Timby's Introductory Medical-Surgical Nursing Thirteenth, North American Edition
Chapter 33 : Introduction to the Immune System Questions
Question 1 of 5
A client is admitted to the hospital with a diagnosis of pneumonia. The client informs the nurse of having several drug allergies. The physician has ordered an antibiotic as well as several other medications for cough and fever. What should the nurse do prior to administering the medications?
Correct Answer: C
Rationale: Clear identification of any substances to which the client is allergic is essential. The nurse must consult drug references to verify that prescribed medications do not contain substances to which the client is hypersensitive. Administering the medications or giving one at a time may cause the client to have an allergic reaction. The nurse may call the pharmacy but still maintains responsibility for the medications administered.
Question 2 of 5
What type of immunoglobulin does the nurse recognize that promotes the release of vasoactive chemicals such as histamine when a client is having an allergic reaction?
Correct Answer: D
Rationale: IgE promotes the release of vasoactive chemicals such as histamine and bradykinin in allergic, hypersensitivity, and inflammatory reactions. IgG neutralizes bacterial toxins and accelerates phagocytosis. IgA interferes with the entry of pathogens through exposed structures or pathways. IgM agglutinates antigens and lyses cell walls.
Question 3 of 5
The nurse understands that which cells circulate throughout the body looking for virus-infected cells and cancer cells?
Correct Answer: A
Rationale: Natural killer cells are lymphocyte-like cells that circulate throughout the body looking for virus-infected cells and cancer cells. Cytokines are chemical messengers released by lymphocytes, monocytes, and macrophages. Interleukins carry messages between leukocytes and tissues that form blood cells. Interferons are chemicals that primarily protect cells from viral infections.
Question 4 of 5
The nurse has several clients scheduled for annual wellness examinations throughout the day. For which client should the nurse prepare the shingles vaccine?
Correct Answer: C
Rationale: The Centers for Disease Control and Prevention recommends annual seasonal influenza vaccine and pneumococcal polysaccharide vaccine (PPSV23; Pneumovax) for all adults 65 years or older or those who are at high risk, and the shingles vaccine (Zostavax) for all individuals who are over the age of 50. Based on this information, the nurse prepares to administer the shingles vaccine to the client who is 65 years of age. The other clients are not eligible to receive this vaccine until the age of 50 years.
Question 5 of 5
What type of cytokine will attract neutrophils and monocytes to remove debris?
Correct Answer: A
Rationale: Lymphokines, a type of cytokine, attract cells when they detect antigens and direct B-cell lymphocytes to multiply and mature. Cytotoxic T cells bind to invading cells, destroy the targeted invader by altering their cellular membrane and intracellular environment, and stimulate the release of chemicals called lymphokines. Suppressor T cells limit or turn off the immune response in the absence of continued antigenic stimulation. Regulator T cells are made up of helper and suppressor cells.