(1 point). Listen.
A nurse recalls that systolic heart failure results in which of the following intraventricular hemodynamic changes?

Increased left ventricular preload.

Increased ejection fraction.

Decreased right ventricular preload.

Decreased right ventricular end-diastolic pressure.

Answer and Explanation

The Correct Answer is A

Choice A rationale:

Systolic heart failure results in increased left ventricular preload. In systolic heart failure, the heart's ability to contract and eject blood effectively is impaired. This leads to decreased ejection fraction, which means that a significant amount of blood is left in the left ventricle at the end of systole. This increased volume of blood in the left ventricle during diastole is referred to as "preload.”. The increased preload is a compensatory mechanism that the heart uses to maintain cardiac output. However, over time, this increased preload can lead to symptoms of congestion and fluid overload.

Choice B rationale:

Systolic heart failure is characterized by decreased ejection fraction, not increased. Ejection fraction is a measure of the percentage of blood ejected from the left ventricle with each heartbeat. In systolic heart failure, this percentage is reduced.

Choice C rationale:

Systolic heart failure does not directly affect right ventricular preload. Right ventricular preload is more related to conditions that affect the right side of the heart, such as pulmonary hypertension.

Choice D rationale:

Systolic heart failure does not necessarily result in decreased right ventricular end-diastolic pressure. Right ventricular end-diastolic pressure can be influenced by a variety of factors, and its alteration is not a specific hallmark of systolic heart failure.

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Correct Answer is B

Explanation

Choice A rationale:

A patient with Alzheimer's disease is at risk for various health complications, but the question specifically asks about the risk of silent myocardial ischemia caused by dysfunction of the autonomic nerves. While Alzheimer's disease may lead to autonomic nervous system dysfunction, diabetes mellitus is a more well-established risk factor for autonomic neuropathy, which can result in silent myocardial ischemia.

Choice B rationale:

Diabetes mellitus is a known risk factor for autonomic neuropathy, which can result in silent myocardial ischemia. Autonomic neuropathy affects the nerves that control vital functions such as heart rate, blood pressure, and digestion. This can lead to silent myocardial ischemia, where the patient may not feel the typical chest pain (angina) associated with reduced blood flow to the heart. Therefore, patients with diabetes are at the highest risk for this complication.

Choice C rationale:

Hypertension, while a risk factor for heart disease, is not directly linked to autonomic neuropathy and silent myocardial ischemia. Hypertension can lead to other cardiovascular complications but is not the primary risk factor for this specific complication mentioned in the question.

Choice D rationale:

Emphysema is primarily a lung condition and is not directly related to autonomic neuropathy or the risk of silent myocardial ischemia. While patients with emphysema may have increased cardiovascular risk due to chronic hypoxia, diabetes mellitus is a more significant risk factor for autonomic neuropathy and its associated complications, such as silent myocardial ischemia.

A. Decreased heart rate. B. Increased renal excretion of sodium. C. Peripheral vasoconstriction. D. Decreased insulin resistance.

Correct Answer is C

Explanation

Choice A rationale:
Increased sympathetic nervous system (SNS) activity does not cause a decreased heart rate. In fact, increased SNS activity often leads to an increased heart rate as part of the "fight or flight" response, which is characterized by increased sympathetic activity.
Choice B rationale:
Increased sympathetic nervous system (SNS) activity does not result in increased renal excretion of sodium. Instead, it can lead to increased sodium reabsorption by the kidneys as part of the body's response to stress.
Choice D rationale:
Increased sympathetic nervous system (SNS) activity does not cause decreased insulin resistance. In fact, it can contribute to insulin resistance, as chronic stress and high levels of stress hormones like epinephrine and norepinephrine can lead to impaired insulin sensitivity.

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(1 point). Listen.A nurse recalls that systolic heart failure results in which of the following intraventricular hemodynamic changes?

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Naxlex Comprehensive Predictor Exams

(1 point). Listen.Which of the following patients is at the highest risk for silent myocardial ischemia caused by dysfunction of the autonomic nerves?

Correct Answer is B

Explanation

(1 point). Listen. When a nurse is describing the development of primary hypertension, which information is correct? Increased sympathetic nervous system (SNS) activity causes:

Correct Answer is C

Explanation

Listen.Which of the following patients should be monitored closely by the nurse for superior vena cava syndrome?

(1 point). Listen.A patient has left-sided (congestive) heart failure.Which assessment findings will indicate to the nurse that pulmonary edema has developed?

(1 point). Solved.Listen.A patient has hyperhomocysteinemia.Which foods should the nurse encourage the patient to consume? Foods high in:.

(1 point). Listen.Which statement indicates that the patient needs more teaching regarding the Virchow triad? A component of the Virchow triad is:.

If a patient has secondary hypertension, the nurse realizes that the patient has an abnormal blood pressure caused by:.

(1 point). Listen. A nurse is providing care to a patient with coronary artery disease. The nurse knows that the most common cause of this condition is:.

(1 point). Listen.A patient has orthostatic hypotension.Which activity will require close observation by the nurse? When the patient:.

(1 point). Listen.While reading the history, the nurse notices that the patient has stenosis of a heart valve.How does the nurse interpret this finding? The valve:.

(1 point). Listen.
A nurse recalls that systolic heart failure results in which of the following intraventricular hemodynamic changes?