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 is the best response when a two-year-old boy begins to cry when his mother starts to leave?
- A. Say, 'Let's wave bye-bye to Mommy.'
- B. Say, 'Let me read this book to you.'
- C. Say, 'Two-year-olds usually stop crying the minute the parent leaves.'
- D. Say, 'Now, now, be a big boy, Mommy will be back soon.'
Correct answer: B
Rationale: The best response in this situation is to offer a distraction to the child. Reading a book can help soothe the child during separation from the parent by redirecting their attention. Choice A might not be as effective as providing a distraction like reading a book. Choice C dismisses the child's feelings and generalizes behavior, which is not helpful. Choice D diminishes the child's emotions and does not provide a constructive way to help the child cope with the separation anxiety.
3. In a client in her third trimester of pregnancy, an S3 heart sound is auscultated. What intervention should the nurse take?
- A. Notify the healthcare provider
- B. Limit the client’s fluids
- C. Prepare the client for an echocardiogram
- D. Document in the client’s record
Correct answer: D
Rationale: An S3 heart sound can be a normal finding in pregnancy due to increased blood volume and flow. In this scenario, there is no immediate need for further interventions. Documenting this finding in the client's record is essential for tracking the client's health status and ensuring proper follow-up if needed. Notifying the healthcare provider, limiting fluids, or preparing for an echocardiogram is unnecessary as it is likely a physiological finding in pregnancy. These interventions should only be considered if other symptoms suggestive of a cardiac issue are present.
4. A client has a history of vasovagal attacks resulting in brady-dysrhythmias. Which instruction is most important to include in the teaching plan?
- A. Use stool softeners regularly
- B. Avoid electromagnetic fields
- C. Maintain a low-fat diet
- D. Do not use aspirin products
Correct answer: A
Rationale: The correct answer is A: 'Use stool softeners regularly.' Vasovagal attacks can be triggered by straining, and using stool softeners can help prevent such attacks. Choices B, C, and D are not directly related to preventing vasovagal attacks in this context. Avoiding electromagnetic fields, maintaining a low-fat diet, or not using aspirin products are important for various health reasons but not specifically for preventing vasovagal attacks related to brady-dysrhythmias.
5. 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.
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