ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has a new prescription for Warfarin. Which of the following herbal supplements should the client be instructed to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort should be avoided by clients taking Warfarin as it can reduce the medication's effectiveness by affecting its metabolism. Echinacea, garlic, and ginseng are also known to interact with Warfarin, either by increasing the risk of bleeding or altering its anticoagulant effects. However, St. John's wort is particularly significant due to its potent enzyme-inducing properties that can lead to subtherapeutic levels of Warfarin, potentially increasing the risk of blood clots.
2. When teaching a client with a new prescription for furosemide, which instruction should the nurse include?
- A. Take this medication in the morning.
- B. Avoid foods high in potassium.
- C. Take this medication on an empty stomach.
- D. Limit fluid intake to 1 liter per day.
Correct answer: A
Rationale: The correct instruction for furosemide, a diuretic, is to take it in the morning to prevent nocturia. Taking it in the morning helps to prevent frequent urination during the night, allowing the client to have uninterrupted sleep. This timing also coincides with the body's natural diuretic response, which is typically more active during the day. Choices B, C, and D are incorrect because furosemide does not require avoiding foods high in potassium, taking it on an empty stomach, or limiting fluid intake to 1 liter per day.
3. A client has a new prescription for Clopidogrel. Which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Avoid taking aspirin while on this medication.
- C. Avoid eating foods high in potassium.
- D. Take this medication at bedtime.
Correct answer: B
Rationale: The correct answer is B: 'Avoid taking aspirin while on this medication.' Clopidogrel is an antiplatelet medication that can increase the risk of bleeding. Aspirin and other NSAIDs also affect platelet function and can further increase the risk of bleeding when combined with Clopidogrel. Therefore, it is important for the client to avoid taking aspirin while on this medication to reduce the risk of excessive bleeding. Choices A, C, and D are incorrect because there is no specific requirement to take Clopidogrel with food, avoid foods high in potassium, or take it at bedtime. The key instruction here is to avoid aspirin to prevent potential bleeding complications.
4. When a nurse assesses a client's IV catheter insertion site and notes a hematoma, which of the following actions should the nurse take? (Select all that apply.)
- A. Stop the infusion.
- B. Apply alcohol to the insertion site.
- C. Apply warm compresses to the insertion site.
- D. Elevate the client's arm.
Correct answer: C
Rationale: When a nurse detects a hematoma at the IV catheter insertion site, applying warm compresses is beneficial as it can promote healing by enhancing circulation and reducing swelling. Elevating the client's arm helps in reducing edema, which can relieve pressure, pain, and further bleeding in the hematoma area. Stopping the infusion may be necessary in certain situations, but it is not a standard action for all hematoma cases. Applying alcohol to the insertion site is discouraged as it can cause irritation and may not aid in resolving the hematoma.
5. A client received IV Verapamil to treat supraventricular tachycardia (SVT). The client's pulse rate is now 98/min, and blood pressure is 74/44 mm Hg. The nurse should anticipate a prescription for which of the following IV medications?
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Potassium chloride
- D. Magnesium sulfate
Correct answer: A
Rationale: In this situation, where the client's blood pressure is significantly lowered due to Verapamil administration, the nurse should anticipate a prescription for Calcium gluconate. Calcium gluconate is used to reverse severe hypotension caused by Verapamil. It should be given slowly intravenously as it counteracts the vasodilation caused by Verapamil, helping to normalize blood pressure levels. Sodium bicarbonate is not indicated for low blood pressure. Potassium chloride and magnesium sulfate are not the appropriate choices to address hypotension caused by Verapamil.
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