which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate
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Nursing Elites

ATI RN

ATI Proctored Pharmacology Test

1. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?

Correct answer: C

Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.

2. A client has a new prescription for Prednisone. Which of the following laboratory values should be monitored by the healthcare provider?

Correct answer: D

Rationale: When a client is prescribed Prednisone, monitoring serum glucose levels is essential. Prednisone, a corticosteroid, can lead to hyperglycemia. Therefore, regular monitoring of serum glucose helps in detecting and managing any potential hyperglycemic effects of the medication. Monitoring serum potassium, calcium, or sodium is not typically required when a client is on Prednisone unless there are specific risk factors or concerns related to these electrolytes.

3. A client is being discharged with a new prescription for an antihypertensive medication. Which of the following statements should the nurse provide?

Correct answer: D

Rationale: The correct answer is D. Orthostatic hypotension is a common adverse effect of antihypertensive medications. The client should move slowly to a sitting or standing position and should be taught to sit or lie down if lightheadedness or dizziness occurs. Choices A, B, and C are incorrect. Limiting potassium intake is usually not necessary with antihypertensive medications. Checking blood pressure every 8 hours is not a standard recommendation unless specified by a healthcare provider. Increasing medication dosage due to tachycardia is not a typical practice for antihypertensive medications.

4. A client is prescribed levothyroxine for hypothyroidism. Which of the following findings should indicate to the nurse that the medication is effective?

Correct answer: B

Rationale: Increased energy levels are a key indicator of the effectiveness of levothyroxine in treating hypothyroidism. Levothyroxine works to regulate thyroid hormone levels, which can lead to improved energy levels as the body's metabolism is restored. While the other options may also improve with treatment, increased energy levels directly reflect the correction of the thyroid hormone imbalance. Decreased heart rate can be an indicator of overmedication, weight loss can be attributed to increased metabolism but may not directly reflect the effectiveness of levothyroxine, and improved mental clarity is a more general cognitive improvement that may not directly relate to thyroid function.

5. A healthcare professional is caring for a client who has a new prescription for Lisinopril. Which of the following laboratory values should the professional monitor?

Correct answer: A

Rationale: Lisinopril is an ACE inhibitor that can cause hyperkalemia by reducing the excretion of potassium in the kidneys. Monitoring serum potassium levels is essential to prevent complications such as cardiac arrhythmias. Therefore, the healthcare professional should closely monitor the client's serum potassium levels when they are on Lisinopril. Choices B, C, and D are incorrect because Lisinopril primarily affects potassium levels due to its mechanism of action as an ACE inhibitor. Serum sodium, calcium, and magnesium levels are not typically affected by Lisinopril in the same way as potassium.

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