Adult Health Nursing Study Guide Answers

Correct Answer: A

Rationale: T helper cells (Th cells) are primarily responsible for coordinating and regulating immune responses by producing cytokines that direct the activities of other immune cells. These cytokines help in activating cytotoxic T cells, B cells, macrophages, and other cells involved in the immune response. Th cells play a crucial role in mounting an effective immune response against infections and diseases by providing the necessary signals to activate and control various immune cells. Thus, T helper cells are considered the central coordinators of the immune system.

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.

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: In hypovolemic shock, isotonic electrolyte solutions are commonly used for fluid replacement to restore the circulating blood volume. The commonly used isotonic electrolyte solutions for this purpose are 0.9% sodium chloride (normal saline) and lactated Ringer's solution.

Correct Answer: B

Rationale: Morbidity refers to the state of being diseased or unhealthy, which is not directly related to population growth. On the other hand, fertility, mortality, and migration are three fundamental demographic variables that significantly influence population growth. Fertility refers to the ability of a population to produce offspring, mortality deals with death rates within a population, and migration involves the movement of individuals into or out of a particular area. These three variables play crucial roles in shaping the size and composition of a population over time.