HESI LPN
CAT Exam Practice
1. A client prescribed warfarin is being taught about dietary modifications by a nurse. Which statement by the client indicates understanding of the teaching?
- A. ''I need to avoid foods high in vitamin C.''
- B. ''I should eat a consistent amount of vitamin K each day.''
- C. ''I can eat as many leafy greens as I want.''
- D. ''I should not worry about any changes in my diet.''
Correct answer: B
Rationale: The correct answer is B. Consistency in vitamin K intake is crucial for clients on warfarin to maintain stable anticoagulation levels. Option A is incorrect as vitamin C does not directly interact with warfarin. Option C is incorrect because although leafy greens are high in vitamin K, excessive consumption can affect warfarin's effectiveness. Option D is incorrect as any changes in diet, particularly in vitamin K intake, can impact the efficacy of warfarin.
2. The nurse is planning care for a client admitted with a diagnosis of pheochromocytoma. Which intervention has the highest priority for inclusion in this client’s plan of care?
- A. Record urine output every hour
- B. Monitor blood pressure frequently
- C. Evaluate neurological status
- D. Maintain seizure precautions
Correct answer: B
Rationale: Pheochromocytoma is associated with severe hypertension due to excessive catecholamine release. Monitoring blood pressure frequently is the priority intervention to assess for hypertensive crises and prevent complications like stroke, heart attack, or organ damage. While recording urine output every hour, evaluating neurological status, and maintaining seizure precautions are important aspects of care, they are not the highest priority in a client with pheochromocytoma.
3. The healthcare provider prescribes potassium chloride 25 mEq in 500 ml D5W to infuse over 6 hours. The available 20 ml vial of potassium chloride is labeled '10 mEq/5 ml.' How many ml of potassium chloride should the nurse add to the IV fluid?
- A. 12.5
- B. 5
- C. 10
- D. 20
Correct answer: B
Rationale: To prepare 25 mEq of potassium chloride for the infusion, the nurse should add 5 ml of the 10 mEq/5 ml solution. This concentration provides the required amount of potassium chloride without exceeding the needed volume. Choice A would result in 12.5 mEq, which exceeds the prescribed amount. Choices C and D are incorrect as they do not align with the correct calculation based on the vial concentration.
4. Two weeks following a Billroth II (gastrojejunostomy), a client develops nausea, diarrhea, and diaphoresis after every meal. When the nurse develops a teaching plan for this client, which expected outcome statement is the most relevant?
- A. Describes a schedule for antacid use in combination with other prescribed medications
- B. Selects a pattern of small meals interspersed with fluid intake
- C. Commits to engaging in a variety of stress reduction techniques
- D. Expresses a commitment to decrease nicotine intake
Correct answer: B
Rationale: The symptoms described are indicative of dumping syndrome, a common complication following a Billroth II procedure. Dumping syndrome presents with symptoms such as nausea, diarrhea, and diaphoresis after meals. To manage these symptoms effectively, the client should opt for small, frequent meals and avoid consuming fluids along with meals. Choice A is inaccurate because antacid use does not directly address the symptoms of dumping syndrome. Choice C is irrelevant as stress reduction techniques are not the primary intervention for dumping syndrome. Choice D is unrelated to the symptoms experienced by the client, making it an inappropriate choice.
5. On admission to the Emergency Department, a female client who was diagnosed with bipolar disorder 3 years ago reports that this morning she took a handful of medications and left a suicide note for her family. Which information is most important for the nurse to obtain?
- A. Which family member has the client's suicide note?
- B. When the client last took medications for bipolar disorder?
- C. What medications the client used for the suicide attempt?
- D. Whether the client has ever attempted suicide in the past?
Correct answer: C
Rationale: Identifying the specific medications taken during a suicide attempt is crucial for determining the appropriate treatment and assessing the potential toxicity or interactions. This information helps healthcare providers initiate the necessary interventions promptly. Option A is not as critical as knowing the medications used. Option B focuses on the timing of the last medication intake rather than the specific drugs taken for the overdose. Option D, while relevant, does not provide immediate actionable information compared to identifying the substances involved in the suicide attempt.
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