a nurse is teaching a client who has a new prescription for brimonidine ophthalmic drops and wears soft contact lenses which of the following instruct

ATI RN

ATI Pharmacology

1. 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 instruction the nurse should include is that Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove the contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid any potential absorption of the medication into the lenses. Choices A, B, and D are incorrect because Brimonidine is not known to stain contacts, cause pupil constriction, or slow heart rate.

2. What are the actions of the drug metformin?

A. Decreases hepatic glucose production and intestinal glucose absorption
B. Increases sensitivity to insulin
C. Short-term sedation
D. Both A and B

Correct answer: D

Rationale: Metformin has dual actions by decreasing hepatic glucose production and intestinal glucose absorption, which helps in reducing blood glucose levels. Additionally, it increases sensitivity to insulin, aiding in its proper utilization within the body. Choice A is correct as metformin acts by decreasing hepatic glucose production and intestinal glucose absorption. Choice B is also correct as metformin increases sensitivity to insulin. Choice C, short-term sedation, is incorrect as metformin is not known for causing sedation. Therefore, the correct answer is D because metformin performs both of these actions.

3. In caring for a client who received IV Verapamil to treat supraventricular tachycardia (SVT) and presents with a pulse rate of 98/min and blood pressure of 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 scenario, the client is experiencing severe hypotension due to Verapamil administration. The appropriate medication to counteract the vasodilation caused by Verapamil and reverse severe hypotension is Calcium gluconate, which should be administered slowly IV. Therefore, the correct choice is Calcium gluconate (Choice A). Sodium bicarbonate (Choice B) is not indicated for hypotension related to Verapamil use. Potassium chloride (Choice C) and Magnesium sulfate (Choice D) are not the appropriate medications to address the hypotension in this situation.

4. A client has a new prescription for Nitrofurantoin. Which of the following instructions should be included?

A. Take this medication with food.
B. Avoid dairy products while taking this medication.
C. Take this medication at bedtime.
D. Increase your intake of vitamin C.

Correct answer: A

Rationale: Nitrofurantoin should be taken with food to enhance absorption and reduce gastrointestinal side effects. Taking it with a meal or a snack can help minimize stomach upset. Instructing the client to take the medication with food ensures optimal effectiveness and tolerability of the drug. Choice B is incorrect because there is no specific interaction between Nitrofurantoin and dairy products. Choice C is incorrect as there is no requirement to take Nitrofurantoin at bedtime. Choice D is also incorrect as increasing vitamin C intake is not necessary or relevant to taking Nitrofurantoin.

5. Which of the following is the antidote for Heparin toxicity?

A. Protamine
B. Methylene blue
C. N-acetylcysteine
D. Glucagon

Correct answer: A

Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.