ATI RN
ATI Anatomy and Physiology
1. Which of the following may indicate hypersecretion of thyroid hormone?
- A. weight loss
- B. Bradycardia
- C. cold intolerance
- D. lethargy
Correct answer: weight loss
Rationale: Weight loss is a common symptom of hyperthyroidism, which is characterized by an excess secretion of thyroid hormone. This increased metabolic rate can lead to weight loss despite normal or increased appetite. Bradycardia (slow heart rate), cold intolerance, and lethargy are more commonly associated with hypothyroidism, where there is an insufficient production of thyroid hormone. Therefore, choices B, C, and D are incorrect in the context of hypersecretion of thyroid hormone.
2. Hepatic encephalopathy develops when the blood level of which substance increases?
- A. Ammonia
- B. Amylase
- C. Calcium
- D. Potassium
Correct answer: A
Rationale: Hepatic encephalopathy develops when the blood level of ammonia increases.
3. Dr. George predicted that positive reinforcement would increase prosocial behavior in preschoolers. Dr. George's prediction is an example of a __________.
- A. theory
- B. research question
- C. hypothesis
- D. research design
Correct answer: C
Rationale: Dr. George's prediction that positive reinforcement would increase prosocial behavior in preschoolers is an example of a hypothesis. A hypothesis is a specific, testable prediction about the relationship between variables based on existing knowledge or theories. In this case, Dr. George is making a prediction about the effect of positive reinforcement on prosocial behavior, which can be tested through research. Choice A, 'theory,' is incorrect because a theory is a broader explanation that integrates a range of findings and observations. Choice B, 'research question,' is incorrect as it refers to an inquiry that asks about the relationship between variables but lacks the specificity and testability of a hypothesis. Choice D, 'research design,' is incorrect as it pertains to the overall strategy or plan for conducting a research study, not the specific prediction Dr. George made.
4. A client is admitted with superior vena cava syndrome. What action by the nurse is most appropriate?
- A. Administer a dose of allopurinol.
- B. Assess the client’s serum potassium level.
- C. Gently inquire about advance directives.
- D. Prepare the client for emergency surgery.
Correct answer: C
Rationale: The correct answer is to gently inquire about advance directives. Superior vena cava syndrome is often a late-stage manifestation, indicating a serious condition. Discussing advance directives with the client is crucial to ensure their wishes are known in case of deterioration. Administering allopurinol (Choice A) is not indicated for superior vena cava syndrome. Assessing the client’s serum potassium level (Choice B) is not the priority when managing this syndrome. Emergency surgery (Choice D) is not typically the initial treatment for superior vena cava syndrome.
5. A nurse is caring for a client who has depression and reports taking St. John's wort along with citalopram. The nurse should monitor the client for which of the following conditions as a result of an interaction between these substances?
- A. Serotonin syndrome
- B. Tardive dyskinesia
- C. Pseudo-parkinsonism
- D. Acute dystonia
Correct answer: A
Rationale: The correct answer is A: Serotonin syndrome. When a client takes St. John's wort, a herbal supplement, along with citalopram, a selective serotonin reuptake inhibitor (SSRI), there is a risk of developing serotonin syndrome. Serotonin syndrome is a potentially life-threatening condition characterized by symptoms such as confusion, agitation, fever, sweating, shivering, tremors, muscle rigidity, and in severe cases, seizures and coma. It is crucial for the nurse to monitor the client for these symptoms. Choices B, C, and D are incorrect because tardive dyskinesia is associated with long-term use of antipsychotic medications, pseudo-parkinsonism is a side effect of antipsychotic medications like haloperidol, and acute dystonia is a side effect of antipsychotic medications characterized by sustained muscle contractions.
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