18. A nurse is part of a multidisciplinary team working with groups of depressed patients. One group of patients receives supportive interventions and antidepressant medication. The other group receives only medication. The team measures outcomes for each group. Which type of study is evident? eBay: testbanks_and_xanax a. Incidence b. Prevalence c. Comorbidity d. Clinical epidemiology ANS: D Clinical epidemiology is a broad field that addresses studies of the natural history (or what happens if there is no treatment and the problem is left to run its course) of an illness, studies of diagnostic screening tests, and observational and experimental studies of interventions used to treat people with the illness or symptoms. Prevalence refers to numbers of new cases. Comorbidity refers to having more than one mental disorder at a time. Incidence refers to the number of new cases of mental disorders in a healthy population within a given period. See related audience response question. PTS: 1 DIF: Cognitive Level: Understand (Comprehension) REF: Page 1-17 TOP: Nursing Process: Evaluation MSC: Client Needs: Safe, Effective Care Environment 19. The spouse of a patient diagnosed with schizophrenia says, “I don’t understand how events from childhood have anything to do with this disabling illness.” Which response by the nurse will best help the spouse understand the cause of this disorder? a. “Psychological stress is the basis of most mental disorders.” b. “This illness results from developmental factors rather than stress.” c. “Research shows that this condition more likely has a biological basis.” d. “It must be frustrating for you that your spouse is sick so much of the time.” ANS: C Many of the most prevalent and disabling mental disorders have strong biological influences. Genetics are only one part of biological factors. Empathy does not address increasing the spouse’s level of knowledge about the cause of the disorder. The other distracters are not established facts. PTS: 1 DIF: Cognitive Level: Apply (Application) REF: Pages 1-5, 6 TOP: Nursing Process: Implementation MSC: Client Needs: Psychosocial Integrity 20. A category 5 tornado occurred in a community of 400 people. Many homes and businesses were destroyed. In the 2 years following the disaster, 140 individuals were diagnosed with posttraumatic stress disorder (PTSD). Which term best applies to these newly diagnosed cases? a. Prevalence b. Comorbidity c. Incidence d. Parity ANS: C
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