ATI RN
ATI Pharmacology Proctored Exam
1. When a client has a new prescription for Warfarin, which of the following foods should they avoid based on the nurse's instructions?
- A. Broccoli
- B. Bananas
- C. Chicken
- D. Potatoes
Correct answer: A
Rationale: Clients prescribed Warfarin should avoid foods high in vitamin K, like broccoli, as they can counteract the medication's effectiveness. Warfarin works by inhibiting vitamin K-dependent clotting factors, so consuming high vitamin K foods can interfere with its anticoagulant effects. Bananas, chicken, and potatoes are not high in vitamin K and do not have a significant impact on Warfarin therapy.
2. A healthcare professional is caring for a young adult client with a serum calcium level of 8.8 mg/dL. Which of the following medications should the professional anticipate administering to this client?
- A. Calcitonin-salmon
- B. Calcium carbonate
- C. Zoledronic acid
- D. Ibandronate
Correct answer: B
Rationale: The client's serum calcium level is below the expected reference range, indicating hypocalcemia. Calcium carbonate, an oral form of calcium, is used to increase serum calcium levels to the expected range in cases of hypocalcemia. It helps correct the deficiency by supplementing calcium in the body.
3. A client has a new prescription for Sucralfate to treat a duodenal ulcer. Which of the following instructions should be included?
- A. Take the medication with meals.
- B. Swallow the tablet whole.
- C. Take the medication 1 hour before meals.
- D. Chew the tablet before swallowing.
Correct answer: C
Rationale: The correct instruction for taking Sucralfate is to take it 1 hour before meals. This timing allows the medication to coat the stomach lining, providing a protective barrier against stomach acid, which aids in healing the duodenal ulcer. Option A is incorrect as it contradicts the correct timing for taking Sucralfate. Option B is not necessary as it does not pertain to how the medication should be taken in relation to meals. Option D is incorrect as chewing the tablet before swallowing is not the correct administration method for Sucralfate.
4. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.
5. What is the antidote for Heparin?
- A. Protamine sulfate
- B. Vitamin K
- C. Naloxone
- D. Toradol
Correct answer: A
Rationale: The correct answer is A: Protamine sulfate. Heparin is an anticoagulant that prevents blood clotting. Protamine sulfate is the antidote for Heparin as it binds to heparin, neutralizing its anticoagulant effects. Vitamin K is not the antidote for Heparin; it is used to reverse the effects of warfarin, another anticoagulant. Naloxone is an opioid antagonist for opioids, and Toradol is a nonsteroidal anti-inflammatory drug (NSAID) for pain relief. Therefore, the correct antidote for Heparin is Protamine sulfate.
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