Nursing Elites

1. What is the primary action of warfarin as an anticoagulant?

• A. Prevents the formation of blood clots
• B. Dissolves existing blood clots
• C. Dilates coronary arteries
• D. Treats rhythm disturbances

Correct answer: A

Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.

2. Which statement is true about food and drug precautions?

• A. Limiting certain types of food or administering certain types of drugs is necessary.
• B. Certain combinations of food and drugs can cause adverse reactions.
• C. Precautions may involve limiting certain types of food or administering drugs rather than restricting the drug itself.
• D. When one drug alters the way another drug affects the body.

Correct answer: B

Rationale: The correct answer is B. Certain combinations of food and drugs can indeed lead to adverse reactions. It is important to be cautious with the simultaneous intake of food and drugs as interactions between them can affect their efficacy and safety. Choices A, C, and D are incorrect because they do not accurately reflect the potential risks associated with the combination of food and drugs.

3. When starting therapy with raloxifene, a client should monitor for which of the following adverse effects?

• A. Leg cramps
• B. Hot flashes
• C. Urinary frequency
• D. Hair loss

Correct answer: B

Rationale: The correct answer is B: Hot flashes. When initiating therapy with raloxifene, clients should be advised to monitor for hot flashes as they are a common adverse effect associated with this medication. Hot flashes are a well-known side effect of raloxifene due to its action on estrogen receptors. Leg cramps (Choice A), urinary frequency (Choice C), and hair loss (Choice D) are not typically associated with raloxifene therapy. Therefore, monitoring for hot flashes is crucial to manage and address this common side effect appropriately.

4. A client has a new prescription for Ferrous sulfate. Which of the following instructions should the nurse include?

• A. Take this medication with milk.
• B. Take this medication on an empty stomach.
• C. Take this medication before bedtime.
• D. Take this medication with antacids.

Correct answer: B

Rationale: The correct answer is to take Ferrous sulfate on an empty stomach. This medication is best absorbed when taken 1 hour before or 2 hours after meals. Instructing the client to take it with milk, before bedtime, or with antacids can decrease its absorption and effectiveness. Taking it with milk can reduce the absorption of iron due to the calcium in milk. Taking it before bedtime is not necessary and may cause gastrointestinal upset. Taking it with antacids can interfere with the absorption of iron.

5. What is pharmacodynamics?

• A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
• B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
• C. The maximum response that a drug can produce
• D. Movements of the drugs throughout the body

Correct answer: B

Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.

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