ATI RN
ATI Pharmacology Quizlet
1. A hospitalized client receiving IV heparin for a deep-vein thrombosis begins vomiting blood. After the heparin has been stopped, which of the following medications should the nurse prepare to administer?
- A. Vitamin K1
- B. Atropine
- C. Protamine
- D. Calcium gluconate
Correct answer: C
Rationale: In this scenario, the client is experiencing a serious complication of heparin therapy, likely due to heparin-induced thrombocytopenia. Protamine is the antidote for heparin and can reverse its anticoagulant effects. It is essential to administer protamine promptly to counteract the effects of heparin and manage the bleeding. Vitamin K1 is used to reverse the effects of warfarin, not heparin. Atropine is used to treat bradycardia or some types of poisoning. Calcium gluconate is used to manage hyperkalemia or calcium channel blocker toxicity, not to reverse heparin's effects.
2. A client has a new prescription for Brimonidine ophthalmic drops and wears soft contact lenses. Which of the following instructions should the nurse include in the teaching?
- A. This medication can stain your contacts.
- B. This medication can cause your pupils to constrict.
- C. This medication can absorb into your contacts.
- D. This medication can slow your heart rate.
Correct answer: C
Rationale: The correct answer is C. Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove their contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid potential absorption of the medication by the lenses. Choices A, B, and D are incorrect because Brimonidine's main concern with contact lenses is its absorption into the lenses rather than staining contacts, causing pupil constriction, or affecting heart rate.
3. A client prescribed Warfarin is receiving discharge instructions from a nurse. Which of the following herbal supplements should the nurse instruct the client to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism. Echinacea may increase the risk of bleeding when taken with Warfarin, garlic may potentiate the anticoagulant effects of Warfarin, and ginseng may also increase the risk of bleeding. However, St. John's wort is the most crucial to avoid due to its significant impact on Warfarin metabolism.
4. A healthcare provider is reviewing the health record of a client who asks about using Propranolol to treat hypertension. The provider should recognize which of the following conditions is a contraindication for taking propranolol?
- A. Asthma
- B. Glaucoma
- C. Hypertension
- D. Tachycardia
Correct answer: A
Rationale: The correct answer is A: Asthma. Propranolol is a nonselective beta-adrenergic blocker that blocks both beta1 and beta2 receptors. Blockade of beta2 receptors in the lungs causes bronchoconstriction, making it contraindicated in clients with asthma. Using propranolol in asthma can exacerbate bronchoconstriction and potentially lead to respiratory distress or exacerbation of asthma symptoms. Choices B, C, and D are incorrect. Glaucoma, hypertension, and tachycardia are not contraindications for taking propranolol. In fact, propranolol is commonly used to treat hypertension and tachycardia.
5. A client with renal failure and an elevated phosphorus level is prescribed aluminum hydroxide 300 mg PO three times daily. For which of the following adverse effects should the nurse inform the client?
- A. Constipation
- B. Metallic taste
- C. Headache
- D. Muscle spasms
Correct answer: A
Rationale: Correct. Aluminum hydroxide is known to cause constipation as a common side effect. Instructing the client about this potential adverse effect is important for their awareness and management. The other options, metallic taste, headache, and muscle spasms, are not typically associated with aluminum hydroxide use. Therefore, the nurse should focus on educating the client about the increased risk of constipation and provide guidance on managing this side effect to improve the client's comfort and treatment adherence.
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