HESI RN
HESI Fundamentals Practice Exam
1. Warm compresses are ordered for an open wound. Which action is appropriate for the nurse?
- A. Use sterile technique when applying the compresses.
- B. Leave the compresses on the area continuously, pouring warm solution on the area when it cools down.
- C. Alternate warm compresses with cold compresses.
- D. Apply a wet dressing and cover it with a dry dressing.
Correct answer: A
Rationale: Using sterile technique when applying the compresses is crucial to prevent infection and promote wound healing. Ensuring a clean environment during wound care reduces the risk of introducing pathogens that can lead to complications. Proper infection control measures play a significant role in the healing process of open wounds. Choice B is incorrect because leaving the compresses on continuously can lead to skin damage or thermal injury. Choice C is incorrect as alternating warm compresses with cold compresses is not appropriate for an open wound. Choice D is incorrect as applying a wet dressing without following specific orders can be detrimental to wound healing.
2. The nurse is preparing a client for surgery. What action is most important for the nurse to take?
- A. Ensure that the client signs the consent form.
- B. Review the client's allergies with the surgical team.
- C. Confirm the client's identity using two identifiers.
- D. Verify that the surgical site is marked.
Correct answer: A
Rationale: Ensuring that the client signs the consent form (A) is the most crucial action before surgery. The consent form is legally and ethically necessary for the procedure to proceed. While reviewing allergies (B), confirming identity (C), and verifying the surgical site (D) are essential steps, obtaining the client's informed consent takes precedence to protect the client's rights and ensure a safe surgical experience.
3. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the nurse set the client's intravenous infusion pump?
- A. 13 ml/hour.
- B. 63 ml/hour.
- C. 80 ml/hour.
- D. 125 ml/hour.
Correct answer: B
Rationale: The correct calculation involves dividing the total volume by the total time. In this case, 250 ml/4 hours = 63 ml/hour. The dose of KCl is not used in the calculation as the focus is on the rate of infusion over the specified time period. Choice A (13 ml/hour) is incorrect as it does not result from the correct calculation. Choice C (80 ml/hour) and Choice D (125 ml/hour) are also incorrect calculations and do not match the correct rate of infusion required.
4. A client is admitted with a diagnosis of chronic obstructive pulmonary disease (COPD) exacerbation. Which intervention should the nurse implement first?
- A. Administer bronchodilators as prescribed.
- B. Administer oxygen via nasal cannula.
- C. Encourage the client to cough and deep breathe.
- D. Position the client in high Fowler's position.
Correct answer: B
Rationale: Administering oxygen via nasal cannula (B) is the priority intervention for a client with COPD exacerbation to improve oxygenation. In COPD exacerbation, there is impaired gas exchange leading to hypoxemia, making oxygen therapy the initial priority. Administering bronchodilators (A) helps with bronchodilation but should come after ensuring adequate oxygenation. Encouraging coughing and deep breathing (C) and positioning the client in high Fowler's position (D) are also beneficial interventions, but the first step is to address the oxygenation needs of the client.
5. How many drops per minute should a client weighing 182 pounds receive if a nurse mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min? The drip factor is 60 gtt/ml.
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To determine the drops per minute for the client, first convert the client's weight from pounds to kilograms: 182/2.2 = 82.73 kg. Calculate the dosage by multiplying 5 mcg by the client's weight in kg: 5 mcg/kg/min × 82.73 kg = 413.65 mcg/min. Find the concentration of the solution in mcg/ml by dividing 250 ml by 50,000 mcg (50 mg): 250 ml/50,000 mcg = 200 mcg/ml. As the client needs 413.65 mcg/min and the solution is 200 mcg/ml, the client should receive 2.07 ml per minute. Finally, using the drip factor of 60 gtt/ml, multiply the ml per minute by the drip factor: 60 gtt/ml × 2.07 ml/min = 124.28 gtt/min, which rounds to 124 gtt/min. Therefore, the client should receive 124 drops per minute. Choice D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate calculation based on the client's weight, dosage, concentration of the solution, and drip factor.
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