HESI RN
HESI Fundamentals Quizlet
1. The health care provider has changed a client's prescription from the PO to the IV route of administration. The nurse should anticipate which change in the pharmacokinetic properties of the medication?
- A. The client will experience increased tolerance to the drug's effects and may need a higher dose.
- B. The onset of action of the drug will occur more rapidly, resulting in a more rapid effect.
- C. The medication will be more highly protein-bound, increasing the duration of action.
- D. The therapeutic index will be increased, placing the client at greater risk for toxicity.
Correct answer: B
Rationale: When a medication is administered via the IV route, the absorptive process is bypassed, leading to a more rapid onset of action. This results in a faster effect of the drug. Choice A is incorrect because changing the route of administration does not necessarily lead to increased tolerance or the need for a higher dose. Choice C is incorrect as changing the route of administration does not directly affect the protein binding of a medication. Choice D is incorrect because increasing the therapeutic index would actually reduce the risk of toxicity, not increase it.
2. The nurse determines that a postoperative client's respiratory rate has increased from 18 to 24 breaths/min. Based on this assessment finding, which intervention is most important for the nurse to implement?
- A. Encourage the client to increase ambulation in the room.
- B. Offer the client a high-carbohydrate snack for energy.
- C. Force fluids to thin the client's pulmonary secretions.
- D. Determine if pain is causing the client's tachypnea.
Correct answer: D
Rationale: An increased respiratory rate can be a sign of various issues postoperatively, including pain. Assessing and managing pain is crucial as it can lead to tachypnea. Pain, anxiety, and fluid accumulation in the lungs can all contribute to an increased respiratory rate. Therefore, determining if pain is causing the tachypnea is the most important intervention to address the underlying cause. Encouraging ambulation, offering snacks, or forcing fluids are not the priority in this situation as pain assessment takes precedence in managing the increased respiratory rate.
3. The client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The primary action for the nurse is to assess the skin under the ice pack to check for any potential thermal injury. This assessment is crucial to ensure the client's safety. Once the skin assessment is done and no harm is found, the nurse can proceed with other necessary actions such as providing instructions to the client or replacing the covering with fresh ice.
4. You are assigned to teach a student how to suction an adult patient with a tracheostomy. Which of the following actions by the student would be incorrect?
- A. Pre-oxygenating the patient with a Resuscibag at 100% O2 several times before suctioning.
- B. Maintaining wall suction pressure at 110-150 mmHg.
- C. Not suctioning for greater than 10-15 seconds at a time.
- D. Applying gentle intermittent pressure and rotating the catheter during the insertion phase of suctioning.
Correct answer: D
Rationale: The incorrect action by the student is applying gentle intermittent pressure and rotating the catheter during the insertion phase of suctioning. This technique can cause trauma to the tracheal walls, increasing the risk of injury to the patient. It is essential to perform suctioning gently and without rotation to prevent complications in patients with a tracheostomy. Pre-oxygenating the patient, maintaining appropriate suction pressure, and limiting suctioning time are all correct actions when suctioning a patient with a tracheostomy.
5. A client with a diagnosis of renal failure is receiving hemodialysis. Which assessment finding should the nurse report to the healthcare provider immediately?
- A. The client's blood pressure is 130/80 mm Hg.
- B. The client gains 1 kg in 24 hours.
- C. The client's potassium level is 5.5 mEq/L.
- D. The client's weight decreases by 0.5 kg in 24 hours.
Correct answer: C
Rationale: A potassium level of 5.5 mEq/L (C) is elevated and concerning in a client with renal failure receiving hemodialysis, as it can lead to life-threatening cardiac arrhythmias. Monitoring blood pressure (A), weight gain (B), and weight loss (D) are essential in clients on hemodialysis, but an elevated potassium level poses an immediate risk that requires prompt intervention.
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