HESI LPN
HESI Fundamentals Study Guide
1. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.
2. A client with diabetes mellitus is experiencing polyuria, polydipsia, and polyphagia. What is the most important action for the LPN/LVN to take?
- A. Encourage the client to increase fluid intake.
- B. Monitor the client's blood glucose level.
- C. Administer insulin as prescribed.
- D. Assess the client's urine output.
Correct answer: B
Rationale: The correct answer is to monitor the client's blood glucose level. When a client with diabetes mellitus presents with symptoms of polyuria, polydipsia, and polyphagia, it indicates hyperglycemia. Monitoring blood glucose levels is crucial to assess and manage the client's condition effectively. Option A, encouraging the client to increase fluid intake, may exacerbate polyuria. Option C, administering insulin, should be done based on the healthcare provider's prescription after assessing the blood glucose level. Option D, assessing the client's urine output, is important but not the most immediate action needed in this scenario; monitoring blood glucose levels takes precedence.
3. A client with a terminal illness is being educated by a healthcare provider about her decision to decline resuscitation in her living will. The client asks about the scenario of having difficulty breathing upon arrival at the emergency department.
- A. “We will apply oxygen through a tube in your nose.”
- B. “We will perform resuscitation efforts regardless of your wishes.”
- C. “You will receive only palliative care.”
- D. “We will ensure your comfort measures are met as per your advance directives.”
Correct answer: A
Rationale: Choice A is correct because applying oxygen through a tube in the nose provides comfort and aligns with the client's wishes for palliative care without resuscitation. This intervention can help alleviate breathing difficulties and maintain comfort without initiating full resuscitation efforts, respecting the client's decision. Choice B is incorrect as it goes against the client's expressed wish to decline resuscitation in her living will. Choice C is not the most appropriate response as it does not directly address the client's immediate concern of difficulty breathing and lacks specificity. Choice D, although focusing on comfort measures, is less specific than the correct choice A in addressing the client's immediate need for assistance with breathing.
4. When measuring a client's blood pressure, which approach is the priority for a nurse caring for a client with hypertension?
- A. Obtain the blood pressure under the same conditions each time
- B. Use a different arm for each measurement
- C. Measure the blood pressure while the client is standing
- D. Take multiple readings at different times of the day
Correct answer: A
Rationale: The correct approach when measuring a client's blood pressure, especially for a client with hypertension, is to obtain the blood pressure under the same conditions each time. Consistency in measurement conditions helps ensure accurate and comparable blood pressure readings. Using a different arm for each measurement (Choice B) is not ideal as it can lead to variations in readings. Measuring the blood pressure while the client is standing (Choice C) is not the standard practice and may not provide accurate results. Taking multiple readings at different times of the day (Choice D) may be useful for monitoring blood pressure trends but is not the priority when ensuring accurate individual readings.
5. The healthcare professional is caring for a client with a chest tube. Which observation requires immediate intervention?
- A. Constant bubbling in the suction control chamber
- B. Intermittent bubbling in the water seal chamber
- C. Drainage of 50 ml per hour
- D. Crepitus around the insertion site
Correct answer: D
Rationale: Crepitus around the chest tube insertion site may indicate subcutaneous emphysema, which requires immediate attention. The presence of crepitus suggests air leaking into the tissues, which could lead to respiratory compromise. Constant bubbling in the suction control chamber is expected and indicates proper functioning of the chest tube system. Intermittent bubbling in the water seal chamber is also normal, showing the system is intact. Drainage of 50 ml per hour is within the expected range for a chest tube.
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