Adult Health Nursing Study Guide Answers

Correct Answer: A

Rationale: The FIRST action of the nurse should be to reassess the client experiencing dyspnea despite continuous oxygen therapy. Reassessment would involve checking the client's respiratory status, oxygen saturation levels, vital signs, and overall condition to gather more information about the situation. This will help the nurse identify any potential causes of the dyspnea and determine the appropriate next steps for intervention. Assessing the client before proceeding with any other actions is crucial in providing safe and effective care.

Correct Answer: B

Rationale: The first step in the qualitative research process is typically conducting a review of existing literature on the topic of interest. This involves exploring existing research studies, theories, and findings related to the area being studied. By reviewing the literature, researchers can gain a better understanding of the current knowledge and identify gaps in the existing research that their study can address. This step helps researchers define the research question, refine the study design, and establish a strong theoretical framework for the study.

Correct Answer: A

Rationale: Bulimia nervosa is an eating disorder characterized by binge eating followed by compensatory behaviors such as self-induced vomiting, fasting, or excessive exercise. The repeated purging in bulimia can lead to electrolyte imbalances, such as hypokalemia (low potassium levels). Hypokalemia is a serious condition that can affect the function of the heart's electrical system, potentially leading to the development of cardiac arrhythmias (irregular heartbeats) and even cardiac arrest, which can result in death. Therefore, in a bulimic patient like Sherry, the risk of death is most likely due to the combination of hypokalemia and its complications, such as cardiac arrhythmias and arrest.

Correct Answer: A

Rationale: Natural killer (NK) cells play a vital role in the innate immune response by identifying and eliminating virus-infected cells, as well as tumor cells, without the need for prior exposure or activation. NK cells are able to detect abnormal cells by recognizing changes in the cell surface molecules, such as downregulation of MHC class I molecules. Once activated, NK cells release cytotoxic granules containing perforin and granzyme, leading to the destruction of the target cell. This direct killing mechanism is crucial for controlling viral infections and preventing the development of tumors. NK cells do not produce antibodies (option B), present antigens to T cells (option C), or release cytokines to recruit other immune cells (option D) as their primary function in the immune response.

Correct Answer: B

Rationale: The symptoms described such as memory loss, impaired judgment, personality changes, difficulty with language, motor function, and coordination all point towards Alzheimer's disease. Alzheimer's is a progressive neurodegenerative disease that primarily affects memory and cognitive functions. Over time, it leads to severe impairment in daily activities and overall functioning. While Parkinson's disease, Huntington's disease, and ALS can also present with neurological symptoms, the combination of gradual-onset memory loss, cognitive decline, and functional impairments seen in this scenario is most characteristic of Alzheimer's disease.