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. What is one of the therapeutic uses of Valproate?

• A. Suppression of seizure activity
• B. Replacement of hypothyroidism to restore normal hormone balance
• C. Maintenance of blood glucose
• D. Lowering of blood pressure

Correct answer: A

Rationale: Valproate, also known as Valproic acid, is commonly used in medicine for the suppression of seizure activity. It is an anticonvulsant medication that helps manage and prevent seizures in various conditions such as epilepsy. While it is not used for replacing hypothyroidism, maintaining blood glucose levels, or lowering blood pressure, its primary therapeutic use is in managing seizures.

3. A client has a new prescription for Amlodipine. Which of the following side effects should the client monitor for and report?

• A. Swelling of the ankles.
• B. Increased urination.
• C. Persistent cough.
• D. Dark-colored urine.

Correct answer: A

Rationale: Corrected Rationale: Amlodipine, a calcium channel blocker, can cause peripheral edema (swelling of the ankles) as a side effect. This occurs due to the dilation of blood vessels and increased fluid retention. It is important for the client to monitor for ankle swelling as it could indicate a potential adverse reaction to the medication. Reporting this side effect to the healthcare provider is crucial to ensure appropriate management and potential adjustment of the treatment plan.\n Choice B, increased urination, is not a common side effect of Amlodipine. Choice C, persistent cough, is more commonly associated with ACE inhibitors rather than calcium channel blockers like Amlodipine. Choice D, dark-colored urine, is not a typical side effect of Amlodipine and is not something the client should specifically monitor for and report while taking this medication.

4. A healthcare professional is preparing to initiate IV therapy for an older adult client. Which of the following actions should the professional plan to take?

• A. Use a blood pressure cuff to distend the veins.
• B. Select the antecubital area to insert the IV catheter.
• C. Distend the veins by using a blood pressure cuff.
• D. Direct the client to lower his arm below his heart.

Correct answer: C

Rationale: The correct answer is C. The healthcare professional should distend the veins using a blood pressure cuff to make the veins more visible and accessible for IV catheter insertion. This technique helps reduce the risk of overfilling the vein, which can lead to complications such as hematoma formation. Choices A, B, and D are incorrect because while selecting the antecubital area is often appropriate for IV insertion in adults, the key action in this scenario is to distend the veins using a blood pressure cuff to facilitate the procedure.

5. A healthcare professional in a provider's office is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?

• A. Calcium 9.2 mg/dL
• B. Calcium 10.3 mg/dL
• C. Potassium 3.4 mEq/L
• D. Potassium 4.8 mEq/L

Correct answer: C

Rationale: The correct answer is C: Potassium 3.4 mEq/L. Potassium 3.4 mEq/L is below the expected reference range and puts a client at risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, especially in older clients taking Digoxin, as potassium plays a crucial role in the heart's electrical activity. Choices A and B are related to calcium levels, which do not directly increase the risk of Digoxin toxicity. Choice D, Potassium 4.8 mEq/L, is within the expected reference range and would not increase the risk of Digoxin toxicity.

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