The nurse is caring for a client who was diagnosed with left-sided heart failure and states, "I do not understand why I have so much trouble breathing if I have heart failure.”. Which of the following responses should the nurse make?
"I am going to notify the healthcare provider because you should not have trouble breathing with left-sided heart failure.”.
"The right side of your heart fails first and causes a back-up of blood in the left side of the heart and then the lungs.”.
"When the left side of your heart does not pump enough blood out, it gets backed up in your lungs and causes shortness of breath.”.
"Typically, clients with left-sided heart failure have difficulty breathing with exertion, but not when resting.”.
The Correct Answer is C
Choice A rationale
Trouble breathing is a hallmark symptom of left-sided heart failure. Suggesting that it should not occur would be inaccurate. The failure of the left ventricle leads to blood accumulation in the pulmonary vessels, creating pulmonary congestion and shortness of breath. Prompt provider notification may be necessary but does not address the underlying pathophysiology. Pulmonary symptoms are expected in this type of heart failure.
Choice B rationale
While left-sided heart failure can eventually lead to right-sided heart failure, the initial problem is with left ventricular dysfunction. This causes reduced forward blood flow and pulmonary congestion due to backflow of blood into the lungs. Right-sided heart failure is not the primary event leading to pulmonary symptoms in left-sided heart failure.
Choice C rationale
The left ventricle's inability to pump effectively results in blood backing up into the pulmonary circulation, causing pulmonary congestion and symptoms like shortness of breath. This is consistent with the hemodynamics of left-sided heart failure. Pulmonary capillary pressure increases, leading to fluid leakage and impaired gas exchange, explaining the client's breathing difficulty.
Choice D rationale
Although difficulty breathing with exertion (dyspnea on exertion) is common, resting symptoms, including orthopnea and paroxysmal nocturnal dyspnea, can also occur in left-sided heart failure due to fluid redistribution. Limiting symptoms to exertion inaccurately portrays the clinical presentation and disregards other significant pulmonary signs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Right and left-sided diastolic failure refers to impairment in ventricular relaxation in both sides of the heart. This prevents proper ventricular filling, leading to decreased cardiac output and congestion in pulmonary and systemic circuits. However, the condition described involves only the right heart, making this option incorrect scientifically.
Choice B rationale
Right-sided systolic and diastolic failure involves impaired right ventricular contraction (systolic) and relaxation (diastolic). Since the scenario specifically focuses on diastolic dysfunction alone due to ventricular thickening, systolic dysfunction is not implicated. Thus, this choice does not align with the clinical presentation given.
Choice C rationale
Right-sided diastolic failure is characterized by thickened ventricular walls (often due to hypertrophy or restrictive cardiomyopathy) that impair ventricular relaxation. This reduces ventricular filling, leading to systemic venous congestion. The described pathology fits this condition, making it the accurate answer according to the description of right-sided heart failure.
Choice D rationale
Right-sided systolic failure occurs when the heart cannot effectively pump blood out of the right ventricle due to weakened contraction. Since the described issue involves diastolic dysfunction from thickened myocardial walls, systolic dysfunction is not a feature here, rendering this option scientifically incorrect. .
Correct Answer is D
Explanation
Choice A rationale
Hypotension is not a typical sign of fluid overload. Fluid overload often presents with hypertension due to increased circulatory volume. Monitoring blood pressure is essential, but hypotension does not reliably indicate fluid overload. This option does not align with scientific understanding of fluid overload symptoms.
Choice B rationale
Distention above the pubis area suggests urinary retention or bladder distension rather than fluid overload. While important to assess, it does not directly indicate fluid overload. This symptom is more related to mechanical issues than systemic fluid imbalance and volume overload.
Choice C rationale
Hypernatremia is not a sign of fluid overload. Fluid overload typically results in dilutional hyponatremia, where excessive fluids lower sodium levels. Monitoring sodium levels is useful, but hypernatremia would suggest dehydration or other conditions, not excess fluid volume. This choice is inconsistent with scientific knowledge.
Choice D rationale
Maintaining strict intake and output records is a fundamental approach to monitoring fluid balance. Accurate measurements of fluid intake and output help detect fluid overload early. This method directly correlates with assessing excess fluid volume in clinical practice. It is a reliable, evidence-based intervention for monitoring fluid status. .
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