Nursing Elites

1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the LPN/LVN 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: To calculate the correct rate of infusion, divide the total volume by the total time: 250 ml / 4 hours = 62.5 ml/hour, which is rounded up to 63 ml/hour. This rate ensures the proper administration of the KCl over the 4-hour period. Choice A (13 ml/hour) is incorrect as it does not match the calculated rate. Choices C (80 ml/hour) and D (125 ml/hour) are also incorrect as they do not correspond to the calculated rate needed for the specified time frame.

2. A client in a provider’s office tells the nurse that, 'I fast for several days each week to help control my weight.' The client takes several medications for various chronic issues. The nurse should explain to the client that which of the following mechanisms that result from fasting puts her at risk for medication toxicity?

• A. Increasing the metabolism of the medications over time
• B. Increasing the protein-binding response
• C. Increasing medications’ transit time through the intestines
• D. Decreasing the excretion of medications

Correct answer: B

Rationale: Fasting can lead to an increased protein-binding response of medications. This can result in a higher concentration of bound medications in the bloodstream, potentially causing toxicity as the medications may not be readily available for metabolism or excretion. Choice A is incorrect because fasting typically doesn't increase medication metabolism. Choice C is incorrect as fasting usually decreases transit time through the intestines. Choice D is incorrect since fasting generally does not decrease medication excretion.

3. After a renal biopsy, a client has returned to the unit. Which of the following nursing interventions is appropriate?

• A. Ambulate the client 4 hours after the procedure
• B. Maintain the client on NPO status for 24 hours
• C. Monitor vital signs
• D. Change the dressing every 8 hours

Correct answer: C

Rationale: Monitoring vital signs is crucial after a renal biopsy to promptly detect any signs of bleeding or complications. Ambulating the client 4 hours after the procedure may increase the risk of bleeding, so it is not appropriate. Maintaining the client on NPO status for 24 hours is not necessary unless specifically ordered by the healthcare provider. Changing the dressing every 8 hours is not typically indicated unless there is a specific concern or order to do so.

4. A client with a history of coronary artery disease is experiencing chest pain. What is the priority action for the nurse to take?

• A. Administer oxygen via a nasal cannula.
• B. Measure the client's vital signs.
• C. Obtain a 12-lead ECG.
• D. Encourage the client to use pursed-lip breathing.

Correct answer: A

Rationale: Administering oxygen via a nasal cannula is the priority action for a client experiencing chest pain due to coronary artery disease. Oxygen therapy helps improve oxygenation, reduce myocardial workload, and relieve chest pain by increasing oxygen delivery to the heart muscle. While measuring vital signs, obtaining a 12-lead ECG, and encouraging pursed-lip breathing are important interventions, administering oxygen takes precedence in this situation to address the potential hypoxemia associated with chest pain in a client with a history of coronary artery disease.

5. An assistive personnel tells the nurse, 'I am unable to find a large blood pressure cuff for a client who is obese. Can I just use the regular cuff if I can get it to stay on?' The nurse replies that taking the blood pressure of a morbidly obese client with a regular blood pressure cuff will result in a reading that is:

• A. Low
• B. High
• C. Inaccurate
• D. Unaffected

Correct answer: B

Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.

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