HESI RN
HESI Fundamentals Practice Exam
1. The healthcare professional is administering an intermittent infusion of an antibiotic to a client with an antecubital saline lock. After opening the roller clamp on the IV tubing, the alarm on the infusion pump indicates an obstruction. What action should be taken first?
- A. Check for a blood return.
- B. Reposition the client's arm.
- C. Remove the IV site dressing.
- D. Flush the lock with saline.
Correct answer: B
Rationale: Repositioning the client's arm is the initial action to take when encountering an obstruction with an antecubital saline lock. Repositioning may correct any bending at the elbow that could be causing the obstruction, allowing for smoother infusion flow. Checking for a blood return, removing the IV site dressing, or flushing the lock with saline would be subsequent actions once the obstruction is addressed. Checking for a blood return is done to confirm proper placement, removing the IV site dressing is necessary for site assessment, and flushing the lock with saline helps maintain patency but should not be the first action when an obstruction is detected.
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. The client is weak from inactivity due to a 2-week hospitalization. In planning care for the client, which range of motion (ROM) exercises should the nurse include?
- A. Passive ROM exercises to all joints on all extremities four times a day.
- B. Active ROM exercises to both arms and legs two or three times a day.
- C. Active ROM exercises with weights twice a day, 20 repetitions each.
- D. Passive ROM exercises to the point of resistance and slightly beyond.
Correct answer: B
Rationale: Active ROM exercises are preferred over passive ROM to restore strength. Performing them on both arms and legs two or three times a day is effective in promoting muscle strength and mobility without the need for external assistance. Choice A is incorrect as passive ROM exercises may not help in restoring strength. Choice C is not recommended as using weights may be too strenuous for a weak client. Choice D is incorrect as passive ROM exercises to the point of resistance and slightly beyond may cause discomfort or injury to the weak client.
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 nurse 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. 75 ml/hr
- B. 150 ml/hr
- C. 225 ml/hr
- D. 300 ml/hr
Correct answer: B
Rationale: To calculate the infusion rate, set up a ratio proportion problem: 50 ml/20 min = x ml/60 min. Cross multiply to solve: 50 × 60 / 20 = 150 ml/hr. Therefore, the infusion pump should be set to deliver the secondary infusion at a rate of 150 ml/hr. Option A, 75 ml/hr, is incorrect because it does not account for the correct calculation. Option C, 225 ml/hr, is incorrect as it is too high a rate based on the calculation. Option D, 300 ml/hr, is also incorrect as it does not align with the correct calculation for the infusion rate.
5. A client with a history of coronary artery disease (CAD) is admitted with chest pain. Which intervention should the nurse implement first?
- A. Administer sublingual nitroglycerin
- B. Obtain a 12-lead electrocardiogram (ECG)
- C. Apply oxygen via nasal cannula
- D. Initiate continuous cardiac monitoring
Correct answer: C
Rationale: In a client with a history of coronary artery disease (CAD) experiencing chest pain, the priority intervention for the nurse to implement first is to apply oxygen via nasal cannula. Oxygenation is crucial to ensure adequate oxygen supply to the tissues and the heart. This intervention takes precedence over administering sublingual nitroglycerin, obtaining an ECG, or initiating continuous cardiac monitoring. While these interventions are important, ensuring adequate oxygenation is the initial priority in the management of a client with chest pain.
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