Nursing Elites

1. 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.

2. A client reports using over-the-counter calcium carbonate antacid. Which of the following recommendations should the nurse make about taking this medication?

• A. Decrease bulk in the diet to counteract the adverse effect of diarrhea.
• B. Take the medication with dairy products to increase absorption.
• C. Reduce sodium intake.
• D. Drink a glass of water after taking the medication.

Correct answer: D

Rationale: The correct recommendation for taking calcium carbonate antacid is to drink a glass of water after taking the medication. This practice enhances the effectiveness of the antacid by promoting its dissolution and absorption in the stomach, providing relief from symptoms of heartburn and indigestion. Choices A, B, and C are incorrect. Choice A is not relevant as calcium carbonate antacid does not typically cause diarrhea. Choice B is inaccurate as taking calcium carbonate with dairy products may decrease its absorption due to the presence of calcium in both sources. Choice C is unrelated to the administration of calcium carbonate antacid.

3. A healthcare professional is reviewing the medical record of a client with a new prescription for Epoetin Alfa. Which of the following findings should the professional report to the provider?

• A. The client has a history of hypertension.
• B. The client has a hemoglobin level of 10 g/dL.
• C. The client has a history of chronic kidney disease.
• D. The client has a blood pressure of 140/90 mm Hg.

Correct answer: C

Rationale: The correct answer is C. Chronic kidney disease is a contraindication for the use of Epoetin Alfa because it can worsen hypertension, increase the risk of cardiovascular events, and lead to adverse outcomes. Epoetin Alfa is used to treat anemia by stimulating red blood cell production, but in the presence of chronic kidney disease, it can exacerbate hypertension and contribute to cardiovascular complications. Choices A, B, and D are not directly related to the contraindication of Epoetin Alfa in the presence of chronic kidney disease.

4. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, what advice should the nurse provide?

• A. Avoid using acetaminophen for headaches.
• B. Restrict intake of foods high in sodium.
• C. Decrease fluid intake to less than 1,500 mL daily.
• D. Limit aerobic activity in hot weather.

Correct answer: D

Rationale: The nurse should advise the client to limit aerobic activity in hot weather to prevent sodium/water depletion, which can increase the risk for Lithium toxicity. Excessive sweating and fluid loss can lead to dehydration and changes in lithium levels, potentially resulting in toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting sodium intake and decreasing fluid intake can lead to increased lithium levels and toxicity, so these are not recommended actions.

5. When administering Lithium to a patient, what is a life-threatening side effect?

• A. Erythema
• B. Pancreatitis
• C. Seizures
• D. Headache

Correct answer: C

Rationale: When a patient is being treated with Lithium, a life-threatening side effect to watch out for is seizures. Lithium can lower the seizure threshold, increasing the risk of seizures. Seizures are serious and necessitate prompt medical intervention to ensure the patient's safety and well-being. Erythema, which is redness of the skin, is not a common life-threatening side effect of Lithium. Pancreatitis can be a side effect of Lithium, but it is not typically life-threatening. Headache is a common side effect of Lithium, but it is not considered life-threatening.

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