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 has a new prescription for methotrexate to treat Rheumatoid Arthritis. The nurse should expect to monitor the client for which of the following adverse effects?

Correct answer: C

Rationale: The correct answer is bone marrow suppression (Choice C). Methotrexate can lead to bone marrow suppression, resulting in adverse effects such as anemia, leukopenia, and thrombocytopenia. Monitoring for signs of decreased blood cell counts is essential to prevent complications and adjust treatment as needed. Choices A, B, and D are incorrect. Insomnia, hypertension, and constipation are not typically associated with methotrexate use in the treatment of Rheumatoid Arthritis.

3. A client is starting therapy with Metformin. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: Metformin should be taken with meals to reduce gastrointestinal side effects and ensure better absorption. Instructing the client to take the medication with the first bite of food helps in achieving optimal effectiveness and minimizes the risk of side effects like nausea or upset stomach. Choice B is incorrect because taking Metformin on an empty stomach can lead to increased gastrointestinal side effects. Choice C is incorrect as there is no specific timing requirement for taking Metformin before bedtime. Choice D is incorrect as Metformin is usually taken daily, not every other day.

4. A client is undergoing preparation for extensive colorectal surgery. Which of the following oral antibiotics should be administered to suppress normal flora in the GI tract?

Correct answer: C

Rationale: The correct answer is C: Neomycin. Neomycin, an aminoglycoside antibiotic, is administered orally before GI surgery to eliminate the normal flora in the large intestine. This helps reduce the risk of postoperative infections by decreasing the bacterial load in the gut. Choices A, B, and D (Kanamycin, Gentamicin, Tobramycin) are not typically used to suppress normal flora in the GI tract before colorectal surgery.

5. A client has a new prescription for Calcitonin-salmon for Osteoporosis. Which of the following tests should the client expect before beginning this medication?

Correct answer: A

Rationale: Before initiating Calcitonin-salmon, a skin test for allergy to the medication may be performed to prevent anaphylactic reactions. Allergic reactions can occur due to sensitivities to the drug, particularly in individuals with fish allergies. Therefore, it is essential for healthcare providers to assess the client's potential allergic response to Calcitonin-salmon through a skin test. The other options are not relevant in this context. An ECG is not typically required before starting Calcitonin-salmon for Osteoporosis, nor is a Mantoux test or liver function tests.

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