A client with acute heart failure is receiving dobutamine. What is the desired effect of this drug in a patient with heart failure?

Decreased cardiac arrhythmias.

Increased myocardial contractility.

Decreased electrical conductivity in the heart.

Dilated coronary arteries.

Answer and Explanation

The Correct Answer is B

Choice A reason: Decreased cardiac arrhythmias are not the primary desired effect of dobutamine in heart failure patients. While dobutamine can have some effects on heart rhythm, its main action is to increase the strength of the heart's contractions.

Choice B reason: Increased myocardial contractility is the correct and desired effect of dobutamine. Dobutamine is a positive inotropic agent, meaning it increases the force of the heart's contractions. This is particularly beneficial in heart failure patients as it helps improve cardiac output and the effectiveness of the heart as a pump, thus alleviating symptoms of heart failure and improving organ perfusion.

Choice C reason: Decreased electrical conductivity in the heart is not an effect of dobutamine. In fact, dobutamine can increase the risk of arrhythmias due to its stimulating effects on the heart. The drug works by enhancing the contractility of the heart muscle rather than altering the electrical conduction system.

Choice D reason: Dilated coronary arteries are not a primary effect of dobutamine. While the drug may have some vasodilatory properties, especially at higher doses, its primary role is to enhance myocardial contractility rather than directly dilate the coronary arteries.

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Correct Answer is A

Explanation

Choice A reason: Monitoring amylase and lipase levels is the best way to determine the effectiveness of treatment in a patient with pancreatitis. These enzymes are produced by the pancreas, and their levels in the blood increase significantly during an episode of pancreatitis. As treatment progresses and the inflammation of the pancreas decreases, the levels of these enzymes should return to normal. Therefore, checking the levels of amylase and lipase is a direct indicator of the patient's response to treatment.

Choice B reason: Hematocrit and hemoglobin levels are important for assessing overall blood volume and oxygen-carrying capacity, but they are not specific indicators of pancreatitis treatment effectiveness. While these levels can provide information about the patient's general health and hydration status, they do not specifically reflect changes in pancreatic inflammation.

Choice C reason: Red blood cell count is another measure of the blood's oxygen-carrying capacity and overall health, but like hematocrit and hemoglobin, it is not specific to pancreatitis. Changes in red blood cell count can occur due to various factors, but they do not provide direct information about the effectiveness of pancreatitis treatment.

Choice D reason: Serum uric acid levels are typically monitored in conditions such as gout or kidney stones, and they are not related to pancreatitis. Monitoring serum uric acid would not provide useful information about the patient's response to pancreatitis treatment.

A. BP 110/62, atrial fibrillation with HR 82, bilateral basilar crackles. B. Weight gain of 1 kg in 3 days, BP 130/80, mild dyspnea with exercise. C. SpO2 92% on 2L nasal cannula, respirations 20/min, 1+ edema of lower extremities. D. Confusion, urine output 15 mL over the last 2 hours, orthopnea.

Correct Answer is D

Explanation

Choice A reason: While atrial fibrillation, bilateral basilar crackles, and a blood pressure of 110/62 indicate important findings in a client with heart failure, they are not immediately life-threatening compared to the symptoms in choice d. Bilateral crackles suggest fluid overload and pulmonary congestion, which require attention, but the priority should be on more critical signs of decreased perfusion.

Choice B reason: Weight gain of 1 kg in 3 days and mild dyspnea with exercise are signs of fluid retention and worsening heart failure. However, they are not as urgent as the symptoms of confusion and low urine output, which suggest severe hypoperfusion and potential organ failure.

Choice C reason: A SpO2 of 92% on 2L nasal cannula, respirations of 20/min, and 1+ edema of the lower extremities indicate mild hypoxemia and fluid overload. Although these findings are important and need management, they are not as critical as the symptoms in choice d, which suggest severe hypoperfusion and a potential emergency.

Choice D reason: Confusion, urine output of 15 mL over the last 2 hours, and orthopnea are the most concerning findings. Confusion indicates decreased cerebral perfusion, which is a sign of severe heart failure and possibly impending cardiogenic shock. Low urine output (oliguria) suggests poor renal perfusion, indicating that the kidneys are not receiving enough blood flow. Orthopnea (difficulty breathing while lying down) is a classic symptom of severe heart failure and pulmonary congestion. These symptoms suggest that the client is in a critical condition that requires immediate intervention to improve perfusion and prevent further deterioration.

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A client with acute heart failure is receiving dobutamine. What is the desired effect of this drug in a patient with heart failure?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

To determine treatment effectiveness in a patient with pancreatitis, the nurse should monitor which of these tests?

Correct Answer is A

Explanation

The nurse has completed an assessment on a client with heart failure and a decreased cardiac output with an ejection fraction of 30%. Which finding should receive the highest priority?

Correct Answer is D

Explanation

A nurse administers prescribed adenosine to a symptomatic patient in supraventricular tachycardia (SVT). Which response would the nurse assess for as an expected therapeutic response?

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The emergency department nurse can expect to see which assessment cues in the patient with acute pancreatitis? Select all that apply.

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