HESI LPN
HESI Practice Test for Fundamentals
1. A client with congestive heart failure (CHF) is receiving furosemide (Lasix). Which laboratory value should the LPN monitor closely while the client is taking this medication?
- A. Sodium
- B. Potassium
- C. Calcium
- D. Magnesium
Correct answer: B
Rationale: The LPN should monitor potassium levels closely while the client is taking furosemide (Lasix) due to the medication's potential to cause hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Hypokalemia can result in serious complications such as cardiac dysrhythmias. Monitoring sodium levels (choice A) is important but not as critical as monitoring potassium in this context. Calcium (choice C) and magnesium (choice D) levels are not typically affected by furosemide and are not the priority for monitoring in this scenario.
2. A group of newly licensed nurses is being taught about the Braden Scale by a nurse. Which of the following responses by a newly licensed nurse indicates an understanding of the teaching?
- A. “The client’s age is not a factor in the measurement.â€
- B. “The scale measures six elements.â€
- C. “A lower score indicates a higher risk of pressure ulcers.â€
- D. “Each element is scored on a range from 1 to 4 points.â€
Correct answer: B
Rationale: Choice B is the correct answer because the Braden Scale measures six elements: Sensory Perception, Moisture, Activity, Mobility, Nutrition, Friction, and Shear. The other choices are incorrect because: Choice A states that the client's age is not a factor in the measurement, which is accurate as age is not included in the Braden Scale. Choice C incorrectly states that a lower score indicates a higher risk of pressure ulcers, which is the opposite of how the Braden Scale works. Choice D inaccurately describes the scoring range of each element on the Braden Scale, which is not from 1 to 4 points but rather from 1 to 3.
3. A nurse is providing care to four clients. Which of the following situations requires the nurse to complete an incident report?
- A. A nurse tied a client's restraints straps to the moveable part of the bed frame.
- B. An assistive personnel placed a surgical mask on a client who has TB before transporting her to radiology.
- C. A nurse administered a medication to a client 30 minutes before the dose is due.
- D. A client who has an IV infusion pump receives an additional 250 mL of IV fluid.
Correct answer: C
Rationale: The correct answer is C. An incident report should be completed when a nurse administers medication to a client significantly earlier than the scheduled time. This deviation from the prescribed schedule could potentially impact the client's treatment plan and requires documentation for proper evaluation and follow-up. Choices A, B, and D do not necessarily require an incident report. Choice A involves improper restraint application, which is a safety issue but does not directly involve medication administration. Choice B involves a protective measure for a client with TB, which is within the scope of practice for assistive personnel. Choice D describes an increase in IV fluid administration, which may need monitoring but does not necessarily indicate a need for an incident report unless there are specific complications or adverse effects related to the additional fluid.
4. A client with chronic kidney disease is being assessed. Which of the following laboratory values would be most concerning?
- A. Serum creatinine of 3.0 mg/dL
- B. Serum potassium of 6.5 mEq/L
- C. Blood urea nitrogen (BUN) of 45 mg/dL
- D. Hemoglobin of 10 g/dL
Correct answer: B
Rationale: In a client with chronic kidney disease, elevated serum potassium levels (hyperkalemia) are the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias. Monitoring and managing serum potassium levels are crucial in patients with kidney disease to prevent severe complications. While elevated creatinine (Choice A) and BUN (Choice C) are indicative of impaired kidney function, hyperkalemia poses a more immediate threat to the client's health. Hemoglobin levels (Choice D) can be affected by chronic kidney disease but are not as acutely dangerous as severe hyperkalemia.
5. A client who is unstable and requires frequent vital signs has an electronic blood pressure machine automatically measuring his blood pressure every 15 min. However, the machine is reading the client’s blood pressure at more frequent intervals, and the readings are not similar. The nurse checks the machine settings and observes the additional readings, but the problem continues. Which of the following is the appropriate nursing action?
- A. Notify the manufacturer
- B. Disconnect the machine, and measure the blood pressure manually every 15 min
- C. Adjust the machine settings again
- D. Ignore the extra readings
Correct answer: B
Rationale: The correct action in this scenario is to disconnect the electronic blood pressure machine and measure the client's blood pressure manually every 15 minutes. Given that the machine is malfunctioning and providing inconsistent readings, relying on manual measurements ensures accuracy and maintains the quality of care. Notifying the manufacturer (Choice A) may be necessary in the long run, but the immediate concern is the accuracy of the vital signs. Adjusting the machine settings again (Choice C) without resolving the underlying issue would not address the problem. Ignoring the extra readings (Choice D) could lead to incorrect assessment and compromise patient care. Therefore, the best course of action is to disconnect the machine and opt for manual blood pressure measurements until the issue is resolved.
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