ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare professional is caring for an older adult client who has a new prescription for Digoxin and takes multiple other medications. Which of the following medications, when used concurrently with Digoxin, places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to Digoxin toxicity. When these medications are used together, the client is at an increased risk. Phenytoin (Choice A) does not significantly impact digoxin levels. Warfarin (Choice C) and aluminum hydroxide (Choice D) do not directly increase the risk of Digoxin toxicity. Therefore, the correct choice is Verapamil (Choice B) due to its potential to raise digoxin levels and cause toxicity.
2. A client has a new prescription for colchicine to treat gout. Which of the following instructions should be included?
- A. Take this medication with food if nausea develops.
- B. Monitor for muscle pain.
- C. Expect to have increased bruising.
- D. Increase your intake of grapefruit juice.
Correct answer: B
Rationale: Monitoring for muscle pain is crucial when taking colchicine because it can lead to rhabdomyolysis, a serious condition characterized by muscle breakdown. This adverse effect needs prompt identification to prevent complications. Choices A, C, and D are incorrect because taking colchicine with food, experiencing increased bruising, or increasing grapefruit juice intake are not relevant instructions for a client prescribed colchicine for gout.
3. A healthcare professional is preparing to administer vancomycin 1 g by intermittent IV bolus. Available is vancomycin 1 g in 100 mL of dextrose 5% in water (D5W) to infuse over 45 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver?
- A. 22 gtt/min
- B. 24 gtt/min
- C. 20 gtt/min
- D. 18 gtt/min
Correct answer: A
Rationale: To calculate the flow rate, use the formula: (Volume in mL x Drop factor) / Time in minutes = Flow rate in gtt/min. In this case, (100 mL x 10 gtt/mL) / 45 min = 22 gtt/min. Thus, the healthcare professional should adjust the manual IV infusion to deliver 22 gtt/min. Choice B, 24 gtt/min, is incorrect because it miscalculates the flow rate. Choices C and D, 20 gtt/min and 18 gtt/min, are also incorrect as they do not accurately calculate the flow rate based on the given information.
4. A healthcare provider is reviewing the health care record of a client who is asking about conjugated equine estrogens. The healthcare provider should inform the client this medication is contraindicated in which of the following conditions?
- A. Atrophic vaginitis
- B. Dysfunctional uterine bleeding
- C. Osteoporosis
- D. Thrombophlebitis
Correct answer: D
Rationale: Conjugated equine estrogens are contraindicated in individuals with a history of thrombophlebitis due to the increased risk of thrombotic events associated with estrogen use. Thrombophlebitis is a condition characterized by inflammation and blood clot formation in the veins, and estrogen therapy can exacerbate this condition, leading to serious complications such as deep vein thrombosis. Therefore, caution is advised when considering estrogen therapy in clients with a history of thrombophlebitis to prevent adverse outcomes. Choices A, B, and C are not contraindications for conjugated equine estrogens. Atrophic vaginitis and dysfunctional uterine bleeding may actually be conditions for which estrogen therapy is indicated. Osteoporosis can also be managed with estrogen therapy in certain cases to help prevent bone density loss.
5. While caring for a client receiving IV heparin, which of the following findings should the nurse identify as an adverse effect of this medication?
- A. Hypertension
- B. Hyperglycemia
- C. Thrombocytopenia
- D. Leukopenia
Correct answer: C
Rationale: Thrombocytopenia, a decrease in platelet count, is a known adverse effect associated with heparin therapy. It can lead to an increased risk of bleeding and should be closely monitored during treatment. Choices A, B, and D are incorrect. Hypertension is not typically associated with heparin use; hyperglycemia is not a common adverse effect of heparin; leukopenia is not a primary side effect of heparin therapy.
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