HESI LPN
Medical Surgical Assignment Exam HESI Quizlet
1. Based on this strip, what is the correct interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Premature atrial fibrillation.
- C. AV block.
- D. Ventricular tachycardia.
Correct answer: A
Rationale: The correct interpretation of the rhythm strip is atrial fibrillation. This arrhythmia is characterized by an irregular heartbeat and the absence of distinct P waves. Choice B, premature atrial fibrillation, is incorrect as there is no indication of premature beats in the strip. Choice C, AV block, is also incorrect as there is no evidence of conduction delays between the atria and ventricles. Choice D, ventricular tachycardia, is not supported by the absence of wide QRS complexes typically seen in this arrhythmia.
2. A client with cirrhosis is receiving lactulose. What is the desired effect of this medication?
- A. Decrease blood glucose levels
- B. Reduce serum ammonia levels
- C. Increase platelet count
- D. Lower serum bilirubin levels
Correct answer: B
Rationale: The correct answer is B: Reduce serum ammonia levels. Lactulose is used to reduce serum ammonia levels in clients with cirrhosis, helping to prevent hepatic encephalopathy. Lactulose works by acidifying the colon, trapping ammonia for excretion. Decreasing blood glucose levels (choice A) is not the primary effect of lactulose. Increasing platelet count (choice C) and lowering serum bilirubin levels (choice D) are not direct effects of lactulose in the management of cirrhosis.
3. A client with a history of hypertension is admitted with a blood pressure of 220/120 mm Hg. What is the priority nursing action?
- A. Administer antihypertensive medication as prescribed.
- B. Place the client in a supine position.
- C. Obtain a detailed health history.
- D. Monitor urine output.
Correct answer: A
Rationale: Administering antihypertensive medication is the priority nursing action in this situation. The extremely high blood pressure of 220/120 mm Hg puts the client at risk of severe complications such as stroke, heart attack, or kidney damage. Lowering the blood pressure promptly is crucial to prevent these complications. Placing the client in a supine position or obtaining a detailed health history are not immediate actions needed to address the hypertensive crisis. Monitoring urine output, although important, is not the priority when the client's blood pressure is critically high.
4. A client is receiving intravenous potassium chloride for hypokalemia. Which action should the nurse take to prevent complications during the infusion?
- A. Administer the infusion rapidly
- B. Monitor the infusion site for signs of infiltration
- C. Use a syringe pump for the infusion
- D. Flush the IV line with normal saline before starting the infusion
Correct answer: B
Rationale: The correct action to prevent complications during the infusion of potassium chloride is to monitor the infusion site for signs of infiltration. Rapid administration can lead to adverse effects, including cardiac arrhythmias. Using a syringe pump is not typically necessary for this infusion. Flushing the IV line with normal saline is a good practice but not directly related to preventing complications specifically during the infusion of potassium chloride.
5. A client with liver cirrhosis is at risk for developing hepatic encephalopathy. Which clinical manifestation should the nurse monitor for?
- A. Kussmaul respirations
- B. Asterixis (flapping tremor)
- C. Bradycardia
- D. Hypertension
Correct answer: B
Rationale: Corrected Rationale: Asterixis, also known as a flapping tremor, is a common sign of hepatic encephalopathy, indicating neurological dysfunction due to liver failure. Kussmaul respirations (option A) are associated with metabolic acidosis, which is not a typical manifestation of hepatic encephalopathy. Bradycardia (option C) and hypertension (option D) are not typically associated with hepatic encephalopathy; in fact, hepatic encephalopathy is more commonly associated with alterations in mental status, neuromuscular abnormalities, and changes in behavior.
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