ATI RN
ATI Anatomy and Physiology Online Practice
1. What is homeostasis?
- A. The inability to keep body weight within normal limits.
- B. Room temperature decreasing because a window is open.
- C. Ingestion of more food than needed.
- D. The tendency of the body to maintain a stable internal environment.
Correct answer: D
Rationale: The correct answer is D: Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. Choices A, B, and C are incorrect. Choice A describes obesity, choice B describes a specific scenario with room temperature, and choice C refers to overeating, which is not related to homeostasis.
2. Which is a correct evaluation of the new psychiatric nurse's statement regarding a client's use of defense mechanisms?
- A. Defense mechanisms can be self-protective responses to stress and need not be eliminated.
- B. Defense mechanisms are a maladaptive attempt by the ego to manage anxiety and should always be eliminated.
- C. Defense mechanisms, used by individuals with weak ego integrity, should be discouraged but not eliminated.
- D. Defense mechanisms cause disintegration of the ego and should be fostered and encouraged.
Correct answer: A
Rationale: The correct evaluation is that defense mechanisms can be self-protective responses to stress and do not necessarily need to be eliminated. These mechanisms serve the purpose of reducing anxiety during times of stress. While some defense mechanisms may be maladaptive, they can also help individuals cope with challenging situations. It is essential for the nurse to recognize that addressing defense mechanisms should be done sensitively, as they may be crucial for the client's emotional regulation. Encouraging the development of healthy coping skills while acknowledging the role of defense mechanisms in managing stress is a balanced approach in psychiatric care. Choice B is incorrect because completely eliminating defense mechanisms is not always feasible or beneficial. Choice C is incorrect as it oversimplifies the relationship between defense mechanisms and ego integrity. Choice D is incorrect as it misrepresents the role of defense mechanisms in ego functions.
3. What ECG changes are expected in hypokalemia?
- A. Flattened T waves on ECG
- B. Prominent U waves on ECG
- C. Widened QRS complexes on ECG
- D. ST elevation on ECG
Correct answer: A
Rationale: In hypokalemia, flattened T waves are a common ECG finding due to the decreased extracellular potassium affecting repolarization. Prominent U waves are typically seen in hypokalemia as well, but flattened T waves are the more specific and early ECG change. Widened QRS complexes are associated with hyperkalemia, not hypokalemia. ST elevation is often seen in conditions like myocardial infarction, pericarditis, or early repolarization syndrome, not specifically in hypokalemia.
4. Which action represents tertiary prevention?
- A. Providing support groups for chronic illness
- B. Administering antibiotics for infections
- C. Teaching safe injection practices
- D. Conducting follow-up visits
Correct answer: A
Rationale: Tertiary prevention aims to support individuals in managing and coping with long-term conditions. Providing support groups for chronic illness falls under tertiary prevention by helping individuals deal with the impacts of their conditions and improve their quality of life.
5. A healthcare provider has just administered a wrong medication to a client. Which of the following actions should the provider take next?
- A. No action is needed
- B. Report error to the provider
- C. Complete an institutional incident report
- D. Inform the client that the wrong medication was given
Correct answer: B
Rationale: In the scenario where a wrong medication has been administered, it is crucial for the healthcare provider to report the error to the provider. This action is essential to ensure that the provider is informed promptly, corrective measures are taken, and the client's well-being is safeguarded. Choice A is incorrect as taking no action could lead to serious consequences and compromise patient safety. Choice C, while important, should come after reporting the error to the provider. Choice D is not the immediate priority as the provider should first focus on addressing the error internally.
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