HESI LPN
CAT Exam Practice
1. A client with acute renal failure (ARF) is admitted for uncontrolled type 1 diabetes mellitus and hyperkalemia. The nurse administers an IV dose of regular insulin per sliding scale. Which intervention is the most important for the nurse to include in this client’s plan of care?
- A. Monitor the client’s cardiac activity via telemetry.
- B. Maintain venous access with an infusion of normal saline.
- C. Assess glucose levels via finger stick every 4 to 6 hours.
- D. Evaluate hourly urine output for the return of normal renal function.
Correct answer: A
Rationale: Monitoring cardiac activity is crucial in this scenario because hyperkalemia can lead to serious cardiac dysrhythmias, which can be life-threatening. Regular monitoring of the client’s cardiac activity via telemetry allows for early detection of any potential cardiac complications. Maintaining venous access with a normal saline infusion is important for hydration but does not address the immediate risk of cardiac dysrhythmias posed by hyperkalemia. Assessing glucose levels is essential in diabetes management but is not the priority when dealing with hyperkalemia-induced cardiac risks. Evaluating hourly urine output for the return of normal renal function is important in ARF but is not as urgent as monitoring the client's cardiac activity in the context of hyperkalemia.
2. What action should the nurse implement for a female client with cancer who has a good appetite but experiences nausea whenever she smells food cooking?
- A. Encourage family members to cook meals outdoors and bring the cooked food inside
- B. Advise the client to replace cooked foods with a variety of different nutritional supplements
- C. Assess the client’s mucus membranes and report the findings to the healthcare provider
- D. Instruct the client to take an antiemetic before every meal to prevent excessive vomiting
Correct answer: A
Rationale: The correct action for the nurse to implement is to encourage family members to cook meals outdoors and bring the cooked food inside. This strategy can help reduce the smell of cooking food and potentially alleviate the client's nausea triggered by food smells. Assessing the client's mucus membranes (choice C) is not directly related to the client's symptom of nausea triggered by food smells. Instructing the client to take an antiemetic before every meal (choice D) may not address the root cause of the issue, which is the smell of cooking food. Advising the client to replace cooked foods with nutritional supplements (choice B) does not address the immediate problem of food odors triggering nausea.
3. A client with a large pleural effusion undergoes a thoracentesis. Following the procedure, which assessment finding warrants immediate intervention by the nurse?
- A. The client has asymmetrical chest wall expansion
- B. The client complains of pain at the insertion site
- C. The client's chest x-ray indicates decreased pleural effusion
- D. The client's arterial blood gases show pH 7.35, PaO2 85, PaCO2 35, HCO3 26
Correct answer: A
Rationale: Asymmetrical chest wall expansion is a critical finding post-thoracentesis as it may suggest a pneumothorax, requiring immediate intervention to prevent further complications. The other options, such as pain at the insertion site (Choice B), decreased pleural effusion on chest x-ray (Choice C), and normal arterial blood gases within acceptable ranges (Choice D) do not indicate an immediate need for intervention like asymmetrical chest wall expansion does.
4. A client who received multiple antihypertensive medications experiences syncope due to a drop in blood pressure to 70/40. What is the rationale for the nurse’s decision to hold the client’s scheduled antihypertensive medication?
- A. Increased urinary clearance of the multiple medications has led to diuresis and lowered the blood pressure.
- B. The antagonistic interaction among the various blood pressure medications has reduced their effectiveness.
- C. The additive effect of multiple medications has caused the blood pressure to drop too low.
- D. The synergistic effect of the multiple medications has resulted in drug toxicity and resulting hypotension.
Correct answer: C
Rationale: The correct answer is C. When a client experiences syncope due to a significant drop in blood pressure after receiving multiple antihypertensive medications, the additive effect of these medications can cause the blood pressure to drop excessively. This additive effect can lead to hypotension, which is why the nurse decided to hold the client's scheduled antihypertensive medication. Choices A, B, and D provide incorrect rationales. Choice A mentions diuresis, which is not directly related to the drop in blood pressure due to additive medication effects. Choice B refers to an antagonistic interaction reducing effectiveness, which is not applicable in this scenario. Choice D talks about a synergistic effect leading to drug toxicity, which is not the cause of the sudden drop in blood pressure observed in the client.
5. The nurse implements a tertiary prevention program for type 2 diabetes in a rural health clinic. Which outcome indicates that the program was effective?
- A. Clients who developed disease complications promptly received rehabilitation
- B. More than 50% of at-risk clients were diagnosed early in their disease process
- C. Only 30% of clients did not attend self-management education sessions
- D. Average client scores improved on a specific risk factor knowledge test
Correct answer: A
Rationale: The correct answer is A because in tertiary prevention, the focus is on managing complications and providing rehabilitation. Choice B is more aligned with primary prevention as it focuses on early diagnosis. Choice C's attendance in education sessions is not a direct indicator of managing complications. Choice D's improvement in knowledge does not directly measure the program's effectiveness in managing complications.
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