HESI LPN
HESI Fundamental Practice Exam
1. A client who has a new prescription for warfarin (Coumadin) is receiving discharge instructions. Which statement indicates the client understands the teaching?
- A. I will take my warfarin at the same time every day.
- B. I should increase my intake of green leafy vegetables.
- C. I should use a soft-bristled toothbrush while taking this medication.
- D. I should avoid drinking alcohol while taking this medication.
Correct answer: C
Rationale: The correct answer is C: 'I should use a soft-bristled toothbrush while taking this medication.' Using a soft-bristled toothbrush is crucial as it helps prevent bleeding gums, which is a potential side effect of warfarin therapy. Option A about taking warfarin at the same time every day is a good practice but does not directly relate to preventing side effects. Option B suggesting an increase in green leafy vegetables can interfere with warfarin's anticoagulant effects due to their vitamin K content. Option D advising to avoid alcohol is generally recommended but is not directly related to the specific side effects of warfarin.
2. A client who has an indwelling catheter reports a need to urinate. Which of the following actions should the nurse take?
- A. Check the catheter to see whether it is patent.
- B. Reassure the client that it is not possible for them to urinate.
- C. Re-catheterize the bladder with a larger-gauge catheter.
- D. Collect a urine specimen for analysis.
Correct answer: A
Rationale: When a client with an indwelling catheter reports a need to urinate, the nurse's initial action should be to check the catheter for patency. This is crucial to ensure that the catheter is not blocked, twisted, or kinked, which could lead to urinary retention. Reassuring the client without assessing the catheter could delay necessary interventions. Re-catheterizing the bladder with a larger-gauge catheter should not be the first step unless catheter patency is confirmed as an issue. Collecting a urine specimen for analysis is important but not the immediate priority when the client reports a need to urinate.
3. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
4. A client is being taught how to use an incentive spirometer. Which of the following statements by the client indicates an understanding of the teaching?
- A. I will try to seal my lips around the mouthpiece
- B. I will use the spirometer as needed throughout the day
- C. I will inhale slowly and deeply when using the spirometer
- D. I will seal my lips around the mouthpiece
Correct answer: D
Rationale: The correct answer is D. Sealing the lips around the mouthpiece is crucial for the proper use of an incentive spirometer as it helps ensure effective delivery of the inhaled medication. Choice A has been corrected to reflect the importance of sealing the lips. Choices B and C are incorrect because using the spirometer as needed throughout the day and inhaling slowly and deeply, although beneficial, do not directly address the essential technique of sealing the lips around the mouthpiece.
5. 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.
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