HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. A nurse is providing care to a client who has an indwelling urinary catheter. Which of the following actions should the nurse take to prevent catheter-associated urinary tract infections (CAUTIs)?
- A. Irrigate the catheter with sterile water daily.
- B. Empty the catheter bag every 8 hours.
- C. Clean the perineal area with antiseptic solution daily.
- D. Secure the catheter to the client's thigh.
Correct answer: D
Rationale: Securing the catheter to the client's thigh is the correct action to prevent CAUTIs. By securing the catheter, movement is minimized, reducing the risk of introducing bacteria into the urinary tract. Choice A is incorrect because routine irrigation of the catheter is not recommended as it can increase the risk of infection. Choice B is incorrect as emptying the catheter bag every 8 hours is important for proper drainage but does not directly prevent CAUTIs. Choice C is incorrect because cleaning the perineal area with antiseptic solution does not address the main source of CAUTIs related to catheter care.
3. During an IV catheter insertion demonstration, which statement by a nurse indicates understanding of the procedure?
- A. “I will thread the needle into the vein at an angle of 10 to 30 degrees with the bevel up.â€
- B. “I will insert the needle into the client’s skin at an angle of 10 to 30 degrees with the bevel up.â€
- C. “I will apply pressure approximately 1.2 inches below the insertion site before removing the needle.â€
- D. “I will select a vein in the antecubital fossa for IV insertion based on its size and easily accessible location.â€
Correct answer: B
Rationale: The correct technique for IV catheter insertion involves inserting the needle at a 10 to 30-degree angle with the bevel up. This angle facilitates proper vein puncture, reduces the risk of complications, and minimizes trauma to the vein. Choice A is incorrect because threading the needle into the vein at an angle of 10 to 30 degrees with the bevel up is the correct technique, not threading it all the way into the vein. Choice C is incorrect because applying pressure 1.2 inches below the insertion site before removing the needle is not a standard step in IV catheter insertion. Choice D is incorrect because selecting the antecubital fossa vein solely based on its size and accessibility may not be the most appropriate criterion; vein selection should also consider factors like vein condition and patient comfort.
4. A client with a history of hypertension is taking a beta-blocker. Which side effect should the LPN/LVN monitor for in this client?
- A. Increased appetite
- B. Dry mouth
- C. Bradycardia
- D. Insomnia
Correct answer: C
Rationale: The correct answer is C: Bradycardia. Beta-blockers are medications that can lower heart rate, leading to bradycardia as a potential side effect. It is essential for the LPN/LVN to monitor for this adverse effect due to the medication's mechanism of action. Choices A, B, and D are incorrect because increased appetite, dry mouth, and insomnia are not typically associated with beta-blocker use. Monitoring for bradycardia is crucial to ensure patient safety and to prevent any potential complications.
5. While caring for a client who begins to experience a generalized seizure while standing in her room, which of the following actions should the nurse take?
- A. Place a pad under the client’s head
- B. Hold the client’s limbs tightly to prevent injury
- C. Lift the client into bed with the help of other staff members
- D. Insert a bite block into the client’s mouth
Correct answer: A
Rationale: During a seizure, the priority is to protect the client's head and ensure their safety. The nurse should guide the client to the ground if possible and place a soft pad or a folded cloth under the head to prevent injury. Restraining the client's limbs can result in injury and should be avoided. Lifting the client can also lead to injuries during a seizure. Inserting a bite block is contraindicated as it can cause damage to the teeth, oral tissues, and obstruct the airway. Therefore, the correct action is to place a pad under the client's head to protect them during the seizure.
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