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. When starting therapy with trastuzumab, which finding should the nurse instruct the client to report?

• A. Dyspnea
• B. Constipation
• C. Tinnitus
• D. Dry mouth

Correct answer: A

Rationale: The correct answer is A: Dyspnea. Dyspnea can indicate pulmonary toxicity, a severe adverse effect of trastuzumab. It is crucial for the client to report any breathing difficulties promptly to ensure timely intervention and prevent further complications. Choices B, C, and D are incorrect because constipation, tinnitus, and dry mouth are not commonly associated with trastuzumab therapy and are not indicative of serious adverse effects that require immediate attention.

3. A client is receiving vancomycin. Which of the following laboratory results should be monitored to evaluate the therapeutic effect of this medication?

• A. BUN
• B. Creatinine
• C. Hemoglobin
• D. White blood cell count

Correct answer: B

Rationale: Corrected Rationale: Creatinine levels should be monitored to evaluate vancomycin's effect on kidney function. Vancomycin can be nephrotoxic, so monitoring creatinine levels helps assess renal function and ensure that the medication is not causing harm to the kidneys. Monitoring BUN (choice A) is important for assessing kidney function but is not as specific as monitoring creatinine levels. Hemoglobin (choice C) and white blood cell count (choice D) are not directly related to evaluating the therapeutic effect of vancomycin.

4. A client has been prescribed Alendronate for osteoporosis. Which of the following instructions should the nurse provide?

• A. Take the medication with a full glass of water after getting up in the morning.
• B. Remain upright for at least 30 minutes after taking the medication.
• C. Chew the tablet and mix it with applesauce if swallowing is difficult.
• D. Take the medication at bedtime to minimize the chance of esophageal irritation.

Correct answer: A

Rationale: The correct instruction for a client prescribed Alendronate for osteoporosis is to take the medication with a full glass of water after getting up in the morning. This is important to reduce the risk of esophageal irritation. Choice B is also correct as remaining upright for at least 30 minutes after taking the medication helps prevent esophageal irritation and ensures proper absorption. Choice C is incorrect because Alendronate tablets should not be chewed or mixed with any other substance. Choice D is incorrect as taking the medication at bedtime increases the risk of esophageal irritation due to lying down after ingestion.

5. Which of the following is the antidote for benzodiazepine toxicity?

• A. Flumazenil
• B. Methylene blue
• C. Deferoxamine
• D. Alkalinize urine

Correct answer: A

Rationale: Flumazenil is the specific antidote for benzodiazepine toxicity. It acts as a competitive antagonist at the benzodiazepine binding site on the GABA receptor, reversing the sedative effects of benzodiazepines. Administration of flumazenil is indicated in cases of benzodiazepine overdose or toxicity to rapidly reverse the central nervous system depression caused by these drugs. It is important to note that flumazenil should be used cautiously in patients with a history of seizures or those who are physically dependent on benzodiazepines, as it can precipitate withdrawal symptoms or seizures.

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