Nursing Elites

1. When taking Digoxin, low levels of what can cause toxicity?

• A. Potassium
• B. Calcium
• C. Sodium
• D. Magnesium

Correct answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.

2. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)

• A. Increased renal secretion
• B. Increased medication-metabolizing enzymes
• C. Liver failure
• D. Peripheral vascular disease

Correct answer: C

Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.

3. When does regular insulin typically peak?

• A. 30 minutes to 2 ½ hours
• B. 1 to 3 hours
• C. 6 to 14 hours
• D. 1 to 5 hours

Correct answer: D

Rationale: Regular insulin usually peaks around 1 to 5 hours after administration. This peak time frame is important to consider when managing blood glucose levels and timing meals to coincide with insulin activity. Choice A, '30 minutes to 2 ½ hours,' is incorrect because regular insulin typically peaks later. Choice B, '1 to 3 hours,' is not the most accurate as the peak for regular insulin can extend beyond 3 hours. Choice C, '6 to 14 hours,' is incorrect as this timeframe is more indicative of long-acting insulins, not regular insulin.

4. A healthcare professional is preparing to administer Diltiazem IV to a client who has atrial fibrillation. Which of the following findings should the healthcare professional report immediately?

• A. Bradycardia.
• B. Hypertension.
• C. Shortness of breath.
• D. Tachycardia.

Correct answer: A

Rationale: The correct answer is bradycardia. Diltiazem, a calcium channel blocker, can lead to bradycardia as a side effect. Bradycardia should be reported immediately because it can result in serious cardiac complications, especially in a client with atrial fibrillation. Hypertension, shortness of breath, and tachycardia are not typically associated with Diltiazem administration and would not be immediate concerns in this scenario.

5. A client's serum Calcium is 8.8 mg/dL. Which of the following medications should the nurse anticipate administering to this client?

• A. Calcitonin-salmon
• B. Calcium carbonate
• C. Zoledronic acid
• D. Ibandronate

Correct answer: B

Rationale: The client's serum calcium level is below the expected reference range. In this case, the appropriate medication to anticipate administering is Calcium carbonate, an oral form of calcium used to increase serum calcium levels to the expected reference range.

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