ATI LPN
ATI Nutrition Proctored Exam 2019 Answers
1. Pepsinogen secreted by the gastric cells is converted into pepsin by:
- A. enterokinase
- B. hydrochloric acid
- C. gastric lipase
- D. pancreatic lipase
Correct answer: B
Rationale: Pepsinogen is converted into its active form, pepsin, by hydrochloric acid in the stomach. Hydrochloric acid helps in unfolding the pepsinogen molecule to transform it into pepsin, which is crucial for protein digestion. Therefore, the correct answer is hydrochloric acid (choice B). Enterokinase (choice A) is an enzyme produced in the small intestine that activates trypsinogen into trypsin, not pepsinogen. Gastric lipase (choice C) is an enzyme that digests fats, not involved in converting pepsinogen to pepsin. Pancreatic lipase (choice D) is an enzyme produced by the pancreas that aids in breaking down fats in the small intestine, not part of the process of pepsin activation.
2. What are the differences between viral and bacterial infections?
- A. Viral infections often cause fatigue and body aches
- B. Bacterial infections often cause high fever and localized pain
- C. Viral infections are treated with antibiotics
- D. Bacterial infections are usually self-limiting
Correct answer: A
Rationale: Corrected Rationale: Viral infections often cause fatigue and body aches, while bacterial infections are more likely to cause high fever and localized pain. Choice A is the correct answer as it accurately reflects the symptoms commonly associated with viral infections. Bacterial infections, on the other hand, typically present with fever and localized pain, as stated in choice B. Choice C is incorrect as viral infections do not respond to antibiotics, while choice D is inaccurate because bacterial infections may require antibiotic treatment and are not always self-limiting.
3. A client is receiving oxytocin to augment labor. The contractions are occurring every 45 seconds, and the fetal heart rate is 170-180 beats/min. What action should the nurse take?
- A. Increase the oxytocin infusion
- B. Decrease the oxytocin infusion
- C. Discontinue the oxytocin infusion
- D. Maintain the oxytocin infusion
Correct answer: C
Rationale: When contractions occur every 45 seconds with a high fetal heart rate, it indicates uterine hyperstimulation and fetal distress. In this situation, the oxytocin infusion should be discontinued immediately to prevent further complications. Increasing or maintaining the infusion would worsen the hyperstimulation and distress. Decreasing the infusion may not be sufficient to address the current situation and could still lead to complications.
4. What is the initial action the nurse should take for a client who had a myocardial infarction (MI) and is experiencing restlessness, agitation, and an increased respiratory rate?
- A. Administer oxygen.
- B. Administer morphine sulfate.
- C. Notify the healthcare provider.
- D. Take the client's blood pressure.
Correct answer: A
Rationale: Administering oxygen is the priority action for a client experiencing restlessness, agitation, and an increased respiratory rate after a myocardial infarction (MI). This intervention helps ensure adequate oxygenation, improve cardiac function, and reduce the workload on the heart. Oxygen therapy takes precedence over administering medications like morphine sulfate or notifying the healthcare provider as it addresses the immediate need for oxygenation. Checking the blood pressure is also important but not as urgent as ensuring proper oxygen supply.
5. A client with hyperkalemia is being taught about dietary management. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should increase my intake of potassium-rich foods.
- B. I should decrease my intake of potassium-rich foods.
- C. I should increase my intake of sodium-rich foods.
- D. I should decrease my intake of sodium-rich foods.
Correct answer: B
Rationale: Correct! Hyperkalemia is a condition characterized by high levels of potassium in the blood. To manage hyperkalemia, it is essential to decrease the intake of potassium-rich foods since excess potassium can worsen the condition. By understanding the need to decrease potassium-rich foods, the client shows comprehension of the dietary management required for hyperkalemia. Choice A is incorrect because increasing potassium-rich foods would exacerbate hyperkalemia. Choice C is incorrect since increasing sodium-rich foods is unrelated to managing hyperkalemia and could potentially lead to other health issues. Choice D is incorrect as decreasing sodium-rich foods is not the primary focus when managing hyperkalemia.
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