HESI LPN
HESI Fundamental Practice Exam
1. A nurse is caring for a client who is unstable and has vital signs measured every 15 minutes by an electronic blood pressure machine. The nurse notices the machine begins to measure the blood pressure at varied intervals and the readings are inconsistent. Which of the following actions should the nurse take?
- A. Discontinue the machine and measure the blood pressure manually every 15 minutes.
- B. Adjust the machine settings.
- C. Clean the machine to ensure accuracy.
- D. Increase the frequency of the readings.
Correct answer: B
Rationale: In this scenario, the nurse should adjust the machine settings. If the electronic blood pressure machine is providing varied intervals and inconsistent readings, it indicates a potential malfunction. Changing the settings may help correct the issue and ensure accurate measurements. Discontinuing the machine and measuring manually every 15 minutes (Choice A) may be time-consuming and impractical. Cleaning the machine (Choice C) is important for routine maintenance but may not address the current issue of varied intervals and inconsistent readings. Increasing the frequency of the readings (Choice D) does not address the problem of inaccurate measurements caused by the malfunctioning machine.
2. 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.
3. A nurse on a medical-surgical unit has received change-of-shift report and will care for four clients. Which of the following tasks should the nurse assign to an assistive personnel (AP)?
- A. Updating the plan of care for a client who is postoperative
- B. Reinforcing teaching with a client who is learning to walk using a quad cane
- C. Reapplying a condom catheter for a client who has urinary incontinence
- D. Applying a sterile dressing to a pressure injury
Correct answer: C
Rationale: The correct answer is C - 'Reapplying a condom catheter for a client who has urinary incontinence.' This task falls within the scope of duties for an assistive personnel (AP). Updating care plans (Choice A), reinforcing teaching (Choice B), and applying sterile dressings (Choice D) typically require a higher level of training and expertise, making them tasks that should not be assigned to an AP. Assigning appropriate tasks based on skill levels ensures safe and effective patient care.
4. A client with type 2 diabetes mellitus is receiving metformin (Glucophage). Which laboratory test should the LPN/LVN monitor while the client is taking this medication?
- A. Complete blood count (CBC)
- B. Liver function tests
- C. Serum electrolytes
- D. Renal function tests
Correct answer: B
Rationale: The correct answer is B: Liver function tests. While a client is taking metformin, monitoring liver function tests is crucial to assess for potential hepatic side effects. Metformin is primarily eliminated by the liver, and monitoring liver function tests helps in early detection of any liver-related complications. Choices A, C, and D are incorrect. A complete blood count (CBC) is not specifically required for monitoring metformin therapy. Serum electrolytes are not directly impacted by metformin, making it less relevant for monitoring this medication. Renal function tests are important for some other diabetes medications, but in the case of metformin, liver function tests take precedence due to its hepatic metabolism.
5. Before donning gloves to perform a procedure, proper hand hygiene is essential. The healthcare professional understands that the most important aspect of hand hygiene is the amount of:
- A. Temperature
- B. Time
- C. Friction
- D. Soap
Correct answer: C
Rationale: The correct answer is C: Friction. The amount of friction is crucial in effective hand hygiene to remove microorganisms. Rubbing hands together with friction helps to dislodge and remove dirt, oils, and microorganisms. While temperature and soap are important factors in hand hygiene, the mechanical action of friction plays a more significant role in physically removing contaminants. Time is also important in hand hygiene practice, but without adequate friction, the effectiveness of the process is compromised.
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