HESI LPN
HESI Fundamentals Exam
1. A nurse is preparing to administer methylprednisolone 10 mg by IV bolus. The amount available is methylprednisolone injection 40-mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Do not use a trailing zero.)
- A. 0.3 mL
- B. 0.25 mL
- C. 0.4 mL
- D. 0.5 mL
Correct answer: A
Rationale: To calculate the mL to administer, use the formula: Dose required (mg) ÷ Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg ÷ 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.
2. A client with diabetes mellitus reports feeling anxious, shaky, and weak. These findings are manifestations of which of the following complications?
- A. Hyperglycemia
- B. Hypoglycemia
- C. Ketoacidosis
- D. Dawn phenomenon
Correct answer: B
Rationale: The correct answer is B, Hypoglycemia. In diabetes mellitus, hypoglycemia can lead to symptoms such as anxiety, shakiness, and weakness due to low blood sugar levels. Hyperglycemia (choice A) is high blood sugar levels and typically presents with symptoms like increased thirst and frequent urination. Ketoacidosis (choice C) is a serious complication of diabetes characterized by high levels of ketones in the blood, leading to symptoms such as fruity breath and rapid breathing. The Dawn phenomenon (choice D) refers to an abnormal early-morning increase in blood sugar levels without an associated hypoglycemia during the night.
3. When caring for a client with a tracheostomy, which of the following actions should the nurse take?
- A. Clean the skin around the stoma with normal saline.
- B. Secure the tracheostomy ties with two fingers' width underneath.
- C. Soak the outer cannula in warm tap water.
- D. Use a cotton tip applicator to clean the inside of the inner cannula.
Correct answer: A
Rationale: When caring for a client with a tracheostomy, the nurse should clean the skin around the stoma with normal saline to prevent infection and ensure cleanliness. This action helps in maintaining skin integrity and preventing skin breakdown. Securing the tracheostomy ties with two fingers' width underneath is essential to allow for proper fit, prevent skin irritation, and ensure the ties are not too tight. Soaking the outer cannula in warm tap water is not recommended as it can lead to contamination and is not a standard practice. Using a cotton tip applicator to clean the inside of the inner cannula is discouraged as it can leave fibers behind, increasing the risk of aspiration and respiratory complications.
4. A client is to receive cimetidine (Tagamet) 300 mg q6h IVP. The preparation arrives from the pharmacy diluted in 50 ml of 0.9% NaCl. The LPN plans to administer the IVPB dose over 20 minutes. For how many ml/hr should the infusion pump be set to deliver the secondary infusion?
- A. 150
- B. 50
- C. 100
- D. 75
Correct answer: A
Rationale: Setting the infusion pump to 150 ml/hr ensures the correct administration rate of the IVPB dose over 20 minutes. To calculate the infusion rate, consider that the total volume to be infused is 50 ml over 20 minutes. To convert this to ml/hr, the calculation is (50 ml / 20 minutes) x 60 minutes/hr = 150 ml/hr. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate needed to deliver the secondary infusion over the specified time.
5. The patient has the nursing diagnosis of Impaired physical mobility related to pain in the left shoulder. Which priority action will the nurse take?
- A. Encourage the patient to engage in self-care.
- B. Promote mobility in the patient.
- C. Encourage the patient to perform range of motion exercises.
- D. Assist the patient with comfort measures.
Correct answer: D
Rationale: The priority action for a patient with Impaired physical mobility related to pain is to assist the patient with comfort measures. By addressing pain through comfort measures, the patient will be more willing and able to move. Encouraging self-care (Choice A) may be important but addressing pain first is crucial in improving mobility. Promoting mobility (Choice B) and encouraging range of motion exercises (Choice C) are important but addressing the pain and providing comfort measures take precedence to improve the patient's physical mobility.
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