HESI RN
HESI Fundamentals Practice Test
1. Which action should the nurse implement when using the confrontation technique during a vision exam?
- A. Use an ophthalmoscope to observe the client's pupil constriction when a strong light is shone on it.
- B. Stand behind the client and direct the client to report when an object enters the peripheral field of vision.
- C. Display a series of four cards with printing of varying sizes to the client and ask which card the client sees most clearly.
- D. Sit facing the client, look directly at the client's face, and move an object inward from the periphery.
Correct answer: D
Rationale: During a vision exam, the confrontation technique is used to assess peripheral vision. By sitting facing the client and moving an object inward from the periphery while looking directly at the client's face, the nurse allows the client to indicate when the object enters the visual field. This method helps in determining the extent of the client's peripheral vision accurately. Choices A, B, and C are incorrect as they do not describe the appropriate method for using the confrontation technique during a vision exam. Choice A involves using an ophthalmoscope to observe pupil constriction, choice B involves testing the peripheral field of vision without the confrontation technique, and choice C describes the Snellen eye chart test for visual acuity, which is not related to the confrontation technique.
2. 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.
3. A client is 2 days post-op from thoracic surgery and is complaining of incisional pain. The client last received pain medication 2 hours ago. He is rating his pain as a 5 on a 1-10 scale. After calling the provider, what is the nurse's next action?
- A. Instruct the client to use guided imagery and slow rhythmic breathing
- B. Provide at least 20 minutes of back massage and gentle effleurage
- C. Encourage the client to watch TV
- D. Place a hot water circulation device, such as an Aqua K pad, to the operative site
Correct answer: A
Rationale: In this scenario, since no additional pain medication is available, the nurse should recommend non-pharmacological pain management techniques. Guided imagery and slow rhythmic breathing can help the client manage incisional pain effectively. These techniques can provide distraction and relaxation, potentially reducing the perception of pain without the need for additional medication.
4. While changing a client’s post-operative dressing, the nurse observes a red and swollen wound with a moderate amount of yellow and green drainage and a foul odor. Given a positive MRSA result, what is the most important action for the nurse to take?
- A. Force oral fluids
- B. Request a nutrition consult
- C. Initiate contact precautions
- D. Limit visitors to immediate family only
Correct answer: C
Rationale: Initiating contact precautions is crucial in this situation to prevent the spread of MRSA infection. MRSA is a highly contagious bacterium that can spread through direct contact with an infected wound or by touching contaminated surfaces. By implementing contact precautions, the nurse can help contain the infection and protect other patients, healthcare workers, and visitors from being exposed to MRSA.
5. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
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