Biological theories identify at least one physiologic basis for depression, and which of the following statements represents that basis?
a. decreased concentration of postsynaptic cell receptors on neurotransmitters
b. decreased sensitivity of postsynaptic cell receptors on neurotransmitters
c. decreased concentration of cortisol throughout the body and brain
d. heightened sensitivity of hypothalamic-pituitary-adrenal feedback loop
B
According to biological theories of depression, a decreased sensitivity of postsynaptic cell receptors and neurotransmitters have a physiologic effect on mood. It is by restoring this decreased receptor sensitivity (referred to as "down regulation") back to normal that the effectiveness of electroconvulsive therapy and many antidepressant drugs is explained.
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The community health nurse is preparing to establish a partnership with other community health professionals. Which of the following would be key?
A) Looking for other professionals who have similar beliefs B) Using visual and creative consensus-building techniques C) Maintaining a strict focused plan toward goal achievement D) Developing the plan first and then involving partners
A nurse researcher who decides to discontinue a research project because the findings indicate that the risks of the study outweigh the benefits is applying the principle of:
a. beneficence. c. trustworthiness. b. justice. d. confidentiality.
A visiting nurse observes signs of anxiety and stress in a newly widowed elderly client who lives alone. The MOST likely plan of intervention would be to:
a. commit the client for involuntary inpatient treatment b. provide resources to maintain a safe, comfortable, familiar home environment c. refer the client for psychoanalysis d. call a family meeting to plan transfer of the client into an assisted-living facility
The role of the capsid in the viral structure includes:
1. facilitating viral replication involving RNA and DNA. 2. allowing for release of the viral infection from the host. 3. triggering body defenses to remove the invader. 4. helping the virus attach to the cell membrane of the host.