The nurse reinforces teaching to the patient on left heart failure (HF). The nurse would evaluate the patient as understanding if the patient stated which of these occurs to blood flow through the heart?

Blood backs up from the left atrium.

Blood backs up from the left ventricle.

Blood backs up from the right ventricle.

Blood backs up from the right atrium.

Answer and Explanation

The Correct Answer is B

Choice A Reason:In left HF, the left ventricle fails to pump blood forward efficiently, leading to congestion in the pulmonary circulation. As a result, blood backs up into the left atrium, causing symptoms such as pulmonary edema, shortness of breath, and fatigue. Left atrial enlargement may occur due to this backup of blood.

Choice B Reason:In left HF, blood does not back up from the left ventricle. Instead, the left ventricle itself is weakened and unable to propel blood effectively into the systemic circulation.

Choice C Reason:Blood backing up from the right ventricle is associated with right heart failure, not left HF. Right HF occurs when the right ventricle fails to pump blood efficiently, leading to congestion in the systemic venous circulation.

Choice D Reason:Blood backing up from the right atrium is also related to right heart failure. In left HF, the primary issue is congestion in the pulmonary circulation due to left ventricular dysfunction.

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Correct Answer is C

Explanation

Choice A reason: Frothy sputum is more commonly associated with left-sided heart failure.

Choice B reason: Orthopnea, or difficulty breathing when lying flat, is also more commonly associated with left-sided heart failure.

Choice C reason: Peripheral edema, which is swelling in the lower limbs, is a classic symptom of right-sided heart failure.

Choice D reason: Dyspnea, or shortness of breath, can occur in right-sided heart failure but is more characteristic of left-sided heart failure. Peripheral edema is the most specific symptom to right-sided heart failure among the options provided.

A. Potassium 5.5 mEq/L B. Potassium 3.8 mEq/L C. Potassium 4.5 mEq/L D. Potassium 2.9 mEq/L

Correct Answer is D

Explanation

Choice A reason: A high potassium level can increase the risk of digoxin toxicity. The normal range for potassium is typically 3.5 to 5.0 mEq/L, so a level of 5.5 mEq/L should be reported.

Choice B reason: A potassium level of 3.8 mEq/L is within the normal range and would not typically increase the risk of digoxin toxicity.

Choice C reason: A potassium level of 4.5 mEq/L is within the normal range and would not typically increase the risk of digoxin toxicity.

Choice D reason: A low potassium level can also increase the risk of digoxin toxicity, but the question asks for the result that does not increase the risk, making 2.9 mEq/L incorrect in this context.

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The nurse reinforces teaching to the patient on left heart failure (HF). The nurse would evaluate the patient as understanding if the patient stated which of these occurs to blood flow through the heart?

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Naxlex Comprehensive Predictor Exams

A nurse is collecting data from a client who has right-sided heart failure. Which of the following findings should the nurse expect?

Correct Answer is C

Explanation

When the nurse is reviewing a patient's daily laboratory test results, which of the following potassium levels should the nurse report to the healthcare provider to reduce the risk of digoxin (Lanoxin) toxicity?

Correct Answer is D

Explanation

The nurse is reinforcing teaching to the patient about the cause of pain from coronary artery disease. The nurse would evaluate the patient as understanding the education if the patient stated which of the following causes the pain from coronary artery disease?

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