Nursing Elites

1. What is the pharmacological action of metformin?

• A. Blocks stimulation of beta1 and beta2.
• B. Blocks vasoconstriction and aldosterone.
• C. Acts at many levels in the CNS to produce an anxiolytic effect.
• D. Decreases hepatic glucose production.

Correct answer: D

Rationale: The correct answer is D: Decreases hepatic glucose production. Metformin's primary pharmacological action is to decrease hepatic glucose production, leading to lower blood sugar levels and improved insulin sensitivity in the liver. Choices A, B, and C are incorrect because metformin does not block stimulation of beta1 and beta2 receptors, vasoconstriction, aldosterone, or act in the CNS to produce an anxiolytic effect. Therefore, these options are not reflective of metformin's mechanism of action.

2. When reviewing a client's health record, a healthcare professional notes that the client is experiencing episodes of hypokalemia. Which of the following medications should be identified as a cause of the client's hypokalemia?

• A. Captopril
• B. Lisinopril
• C. Furosemide
• D. Spironolactone

Correct answer: C

Rationale: Furosemide, a loop diuretic, can lead to hypokalemia by increasing the excretion of potassium in the urine. This potassium loss can result in lower-than-normal levels of potassium in the body, leading to hypokalemia.

3. What are the Therapeutic Effects of Lithium?

• A. Prevents or decreases the incidence of acute manic episodes
• B. Maintenance of blood glucose
• C. Control of hyperglycemia in diabetic patients
• D. Diminished seizure activity

Correct answer: A

Rationale: The therapeutic effect of lithium is that it prevents or decreases the incidence of acute manic episodes in patients with bipolar disorder. Lithium is commonly used as a mood stabilizer in the treatment of bipolar disorder due to its ability to reduce the frequency and severity of manic episodes. Choices B, C, and D are incorrect as lithium is not used for the maintenance of blood glucose, control of hyperglycemia in diabetic patients, or to diminish seizure activity. These effects are not associated with the use of lithium as a medication.

4. During a unit of whole blood transfusion, a client develops a cough, shortness of breath, elevated blood pressure, and distended neck veins. The healthcare professional should anticipate a prescription for which of the following medications?

• A. Epinephrine
• B. Lorazepam
• C. Furosemide
• D. Diphenhydramine

Correct answer: C

Rationale: In the scenario described, the client is exhibiting signs of fluid overload, which can occur during blood transfusion. Furosemide, a loop diuretic, is commonly prescribed in such situations to help relieve manifestations of circulatory overload by promoting diuresis and reducing fluid volume. Therefore, the correct choice is C - Furosemide. Epinephrine (Choice A) is not indicated for fluid overload but for severe allergic reactions. Lorazepam (Choice B) is a benzodiazepine used for anxiety or sedation, not for fluid overload. Diphenhydramine (Choice D) is an antihistamine often used for allergic reactions, not for fluid overload.

5. A client has a new prescription for Docusate Sodium. Which of the following instructions should the nurse include?

• A. Take the medication with a full glass of water.
• B. Expect results within 30 minutes.
• C. Take this medication at bedtime.
• D. Avoid taking this medication with food.

Correct answer: A

Rationale: The correct instruction for a client prescribed Docusate Sodium is to take the medication with a full glass of water. Docusate sodium is a stool softener, and taking it with water helps to soften the stool and make bowel movements easier. Adequate fluid intake is crucial when taking stool softeners to prevent constipation. Choices B, C, and D are incorrect. B is incorrect because the effects of Docusate Sodium may not be immediate, and it may take a couple of days for the stool softener to work. Choice C is incorrect as there is no specific requirement to take this medication at bedtime. Choice D is incorrect because there is no instruction to avoid taking Docusate Sodium with food.

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