when taking digoxin low levels of what can cause toxicity
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2023 Quizlet

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

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 client with heart failure is prescribed digoxin. Which of the following findings should the nurse identify as an adverse effect of digoxin?

Correct answer: B

Rationale: Blurred vision is a common adverse effect of digoxin and can indicate toxicity. Monitoring for visual changes is essential to prevent serious complications in clients taking digoxin.

3. A client with cancer and a prescription for methotrexate PO reports bleeding gums while being assessed by a nurse in a provider's clinic. Which of the following actions should the nurse take?

Correct answer: B

Rationale: The correct action for the nurse to take when a client on methotrexate reports bleeding gums is to check the client's current platelet count. Bleeding gums may indicate thrombocytopenia, a decreased platelet count which can be a severe side effect of methotrexate therapy. Monitoring the platelet count is crucial for early detection and management of this potentially life-threatening complication. Choice A is incorrect as bleeding gums in this context may not be an expected adverse effect of methotrexate. Choice C is irrelevant and does not address the potential underlying issue of thrombocytopenia. Choice D is not the primary action needed at this point; checking the platelet count is more urgent to assess the severity of the situation.

4. How is lithium typically administered?

Correct answer: C

Rationale: Lithium is typically administered orally to ensure proper absorption and distribution in the body. By taking lithium orally, it allows the medication to be absorbed through the gastrointestinal tract and distributed effectively. Intravenous and intramuscular routes are not commonly used for lithium administration as they can lead to rapid, unpredictable absorption and increase the risk of toxicity. Sublingual administration is also not the typical route for lithium, as it is usually taken orally for consistent and controlled absorption.

5. When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor?

Correct answer: D

Rationale: Corrected Question: When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor? Amitriptyline is known to cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down or sitting to a standing position. Monitoring for orthostatic hypotension is crucial to prevent falls and related injuries. Educating the client about moving slowly and changing positions gradually can help mitigate this adverse effect. Choices A, B, and C are incorrect because decreased appetite, explosive diarrhea, and decreased pulse rate are not commonly associated with Amitriptyline use. Therefore, the correct answer is D.

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