A patient diagnosed with cor pulmonale would most benefit from _because_______

an ACE-inhibitor medication: it will act as an inotrope and help to eliminate murmurs.

a diuretic: it will decrease preload and therefore decrease the workload of the heart.

a lab check of his troponin level: a troponin level will distinguish between right and left ventricular failure

a diuretic: it will counteract the dehydration present in most cases of cor pulmonale.

Answer and Explanation

The Correct Answer is B

A. While ACE inhibitors can be beneficial for heart failure management, they do not specifically eliminate murmurs and are not primarily used as inotropes in cor pulmonale management.
B. Cor pulmonale, characterized by right heart failure due to lung disease, often leads to fluid overload. A diuretic helps to decrease preload by promoting diuresis, thus reducing the workload on the heart and alleviating symptoms of congestion.
C. Troponin levels are used to assess myocardial injury rather than to distinguish between right and left ventricular failure; this is not a primary concern in cor pulmonale management.
D. Cor pulmonale is typically associated with volume overload rather than dehydration; therefore, using a diuretic to counteract dehydration is incorrect. The focus should be on reducing excess fluid to manage heart failure symptoms.

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Correct Answer is C

Explanation

A. Hypokalemia causes hyperpolarization, not hypopolarization, making it more difficult for cells to reach an action potential.

B. Hypokalemia does not stimulate the vagus nerve but can lead to arrhythmias.

C. While hypokalemia can cause arrhythmias, it usually leads to tachycardia or other irregular rhythms rather than a bradycardic rate of 40 beats per minute.

D. Low potassium levels can lead to tachycardia (e.g., a heart rate of 150 beats per minute) and other dangerous arrhythmias due to increased irritability of cardiac cells.

A. low preload. B. pleural effusion. C. peripheral edema. D. pulmonary edema.

Correct Answer is D

Explanation

A. Preload is typically increased in LHF, as blood backs up in the left side of the heart.

B. Although pleural effusion can occur as a secondary complication in some cases of heart failure, it is not as directly indicative of LHF as pulmonary edema.

C. Peripheral edema is more characteristic of right heart failure, where blood backs up in the systemic circulation.

D. Pulmonary edema is a hallmark finding in left heart failure as the left ventricle fails to pump effectively, causing fluid to accumulate in the lungs due to back pressure from the left atrium into the pulmonary veins.

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A patient diagnosed with cor pulmonale would most benefit from _____because___________

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