What is a common reason for a client with heart failure to experience fatigue?

Fatigue in clients with heart failure is often linked to dehydration resulting from the use of diuretics. Diuretics are commonly prescribed to help manage fluid overload by promoting the excretion of sodium and water through urine. While this can alleviate symptoms of heart failure by reducing edema and pulmonary congestion, it can also lead to significant fluid loss. When fluid levels drop, it can cause decreased blood volume, potentially leading to hypotension and reduced perfusion to vital organs. This can result in feelings of tiredness and weakness.

In addition to the direct effects of dehydration, the resulting electrolyte imbalances—particularly fluctuations in potassium and magnesium levels—can further contribute to weakness and fatigue. Maintaining optimal hydration and electrolyte balance is crucial for energy levels and overall function in individuals with heart failure.