HESI LPN
HESI Fundamental Practice Exam
1. A client with pneumonia has a decrease in oxygen saturation from 94% to 88% while ambulating. Based on these findings, which intervention should the LPN/LVN implement first?
- A. Assist the ambulating client back to the bed.
- B. Encourage the client to ambulate to resolve pneumonia.
- C. Obtain a prescription for portable oxygen while ambulating.
- D. Move the oximetry probe from the finger to the earlobe.
Correct answer: A
Rationale: The correct intervention is to assist the client back to bed. A decrease in oxygen saturation while ambulating indicates hypoxemia, and the immediate priority is to stabilize oxygen levels. Returning the client to bed allows for rest and decreased oxygen demand, potentially preventing further desaturation. Encouraging continued ambulation (Choice B) may worsen the hypoxemia by increasing oxygen demand. Obtaining portable oxygen (Choice C) is essential but should not delay addressing the low oxygen saturation. Moving the oximetry probe (Choice D) may not address the underlying cause of decreased oxygen saturation and should not be the first intervention.
2. A healthcare professional is preparing to administer 0.9% sodium chloride (0.9% NaCl) 250 mL IV to infuse over 30 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 83 gtt/min
- B. 125 gtt/min
- C. 100 gtt/min
- D. 75 gtt/min
Correct answer: C
Rationale: To administer 250 mL over 30 min with a drop factor of 10 gtt/mL, the healthcare professional should adjust the IV infusion to deliver 100 gtt/min. The correct calculation is: (250 mL รท 30 min) x 10 gtt/mL = 100 gtt/min. This rate ensures the proper administration of the IV solution within the specified time frame. Choices A, B, and D are incorrect as they do not align with the accurate calculation based on the provided data.
3. The client with congestive heart failure (CHF) is receiving furosemide (Lasix). Which laboratory value should the healthcare provider monitor closely?
- A. Potassium
- B. Sodium
- C. Calcium
- D. Magnesium
Correct answer: A
Rationale: Correct! When a client is taking furosemide (Lasix), monitoring potassium levels is crucial due to the potential for hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Low potassium levels can predispose the client to cardiac dysrhythmias. Sodium, calcium, and magnesium levels are not typically affected by furosemide to the same extent as potassium, making them less critical to monitor in this scenario.
4. A nurse is preparing to check a client's blood pressure. Which of the following actions should the nurse take?
- A. Apply the cuff above the client's antecubital fossa.
- B. Use a cuff with a width that is about 60% of the client's arm circumference.
- C. Have the client sit with their arm resting at the level of their heart.
- D. Release the pressure on the client's arm at a rate of 5 to 6 mm per second.
Correct answer: A
Rationale: The correct action when checking a client's blood pressure is to apply the cuff above the client's antecubital fossa. Placing the cuff above this area allows for an accurate measurement of blood pressure. Choice B is incorrect because the cuff width should be approximately 40% of the arm circumference, not 60%. Choice C is incorrect as the client's arm should rest at heart level, not above it, to ensure an accurate reading. Choice D is incorrect as the pressure on the client's arm should be released at a rate of 2 to 3 mm per second, not 5 to 6 mm per second.
5. When evaluating the effectiveness of a client's nursing care, the nurse first reviews the expected outcomes identified in the plan of care. What action should the nurse take next?
- A. Determine if the expected outcomes were realistic
- B. Obtain current client data to compare with expected outcomes
- C. Modify the nursing interventions to achieve the client's goals
- D. Review related professional standards of care
Correct answer: B
Rationale: After reviewing the expected outcomes in the plan of care, the nurse should obtain current client data to compare with these outcomes. This step is crucial in determining the effectiveness of the care provided. Choice A is incorrect because determining the realism of expected outcomes comes after assessing current client data. Choice C is incorrect as modifying nursing interventions should be based on the data comparison rather than done immediately after reviewing expected outcomes. Choice D is also incorrect as reviewing professional standards of care is important but not the immediate next step in evaluating care effectiveness.
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