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. The healthcare provider is assessing several clients prior to surgery. Which factor in a client's history poses the greatest threat for complications to occur during surgery?
- A. Taking birth control pills for the past 2 years
- B. Taking anticoagulants for the past year
- C. Recently completing antibiotic therapy
- D. Having taken laxatives PRN for the last 6 months
Correct answer: B
Rationale: Anticoagulants increase the risk of bleeding during surgery, which can lead to complications such as excessive bleeding and difficulty in achieving hemostasis. This poses a significant threat during a surgical procedure where controlling bleeding is crucial for a successful outcome. The other options (A, C, D) are not as critical as anticoagulants in terms of posing a threat for complications during surgery. Birth control pills, recently completing antibiotic therapy, and using laxatives do not directly impact bleeding risks during surgery compared to anticoagulants.
3. A client is admitted to the hospital with a diagnosis of pneumonia. Which laboratory test result should the nurse monitor to evaluate the client’s respiratory function?
- A. Arterial blood gases (ABGs)
- B. Complete blood count (CBC)
- C. Blood glucose levels
- D. Serum electrolyte levels
Correct answer: A
Rationale: Arterial blood gases (ABGs) are the most appropriate laboratory test to monitor respiratory function in a client with pneumonia. ABGs provide valuable information on oxygenation status, acid-base balance, and how well the lungs are exchanging gases. This information helps in assessing the effectiveness of ventilation and oxygenation, guiding treatment decisions, and evaluating the overall respiratory status of the client.
4. The healthcare provider is teaching a client with hypertension about lifestyle modifications. Which instruction should the healthcare provider include?
- A. Limit sodium intake to 2,300 mg per day
- B. Engage in moderate exercise for 30 minutes daily
- C. Consume a diet high in saturated fats
- D. Avoid alcohol consumption completely
Correct answer: B
Rationale: Engaging in moderate exercise for 30 minutes daily is a crucial lifestyle modification for managing hypertension. Regular physical activity helps lower blood pressure, improve cardiovascular health, and overall well-being. It is recommended to engage in activities like brisk walking, cycling, or swimming to achieve these benefits. Choices A, C, and D are incorrect. Limiting sodium intake, avoiding a diet high in saturated fats, and reducing alcohol consumption are also important lifestyle modifications for hypertension management, but engaging in moderate exercise is the most appropriate initial instruction for this client.
5. Which instruction is most important for the nurse to include when teaching a client with limited mobility strategies to prevent venous thrombosis?
- A. Perform cough and deep breathing exercises hourly.
- B. Turn from side to side in bed at least every 2 hours.
- C. Dorsiflex and plantarflex the feet 10 times each hour.
- D. Drink approximately 4 ounces of water every hour.
Correct answer: C
Rationale: The most crucial instruction for a client with limited mobility to prevent venous thrombosis is to perform dorsiflexion and plantarflexion of the feet 10 times each hour. These exercises help promote venous return, reducing the risk of thrombosis by preventing blood stasis in the lower extremities. While other measures like turning in bed and staying hydrated are beneficial, promoting venous return through foot exercises is the priority in preventing venous thrombosis in clients with limited mobility. Dorsiflexion and plantarflexion directly target the calf muscle pump, aiding in the circulation of blood back to the heart and preventing clot formation. The other options, such as cough and deep breathing exercises, turning in bed, and hydration, are important for overall health but do not directly address venous stasis and thrombosis prevention in the same way as foot exercises.
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