ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
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 client reports taking Aspirin four times daily for a sprained wrist. Which of the following prescribed medications taken by the client is contraindicated with aspirin?
- A. Digoxin
- B. Metformin
- C. Warfarin
- D. Nitroglycerin
Correct answer: C
Rationale: Aspirin inhibits platelet aggregation, which can increase the effect of anticoagulants like warfarin, leading to an elevated risk of bleeding. Therefore, the concurrent use of aspirin and warfarin is generally contraindicated due to this potential interaction. Digoxin is not contraindicated with aspirin in most cases. Metformin and nitroglycerin do not have significant interactions with aspirin, making them less likely to be contraindicated in this scenario.
3. A client is taking Desmopressin for Diabetes Insipidus. For which of the following adverse effects should the nurse monitor?
- A. Hypovolemia
- B. Hypercalcemia
- C. Agitation
- D. Headache
Correct answer: D
Rationale: Headache is an adverse effect that the nurse should monitor for in a client taking Desmopressin for Diabetes Insipidus. It can be an early sign of water intoxication, which is a potential complication of desmopressin therapy due to excessive water retention in the body.
4. A client is being discharged with a new prescription for Fluoxetine for PTS. Which of the following statements should the nurse include in the teaching?
- A. You may experience a decreased desire for intimacy while taking this medication.
- B. You should take this medication in the morning to avoid sleep disturbances.
- C. To minimize urinary adverse effects, ensure you urinate before taking this medication.
- D. It is recommended to wear sunglasses outdoors due to the light sensitivity caused by this medication.
Correct answer: A
Rationale: The correct statement for the nurse to include in the teaching is that the client may experience a decreased desire for intimacy while taking Fluoxetine for PTS. This is important because Fluoxetine, an SSRI used to treat PTS, can lead to decreased libido as a potential adverse effect. Choices B, C, and D are incorrect because they do not address the specific side effect associated with Fluoxetine and are not directly relevant to the medication's effects for this patient.
5. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.
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