NCLEX-PN

●​ Aging-related changes can diminish thirst perception and alter fluid and electrolyte responses in the elderly. ●​ Infants have rapid respiratory rates that increase fluid losses. ●​ Clients with bladder control problems may limit fluid intake, raising their risk of dehydration. Balancing hydration and symptom management is essential. Hypervolemia (Fluid Excess) Hypervolemia occurs when fluid retention surpasses fluid losses. Risk factors include poor renal function, certain medications, excessive sodium intake, and heart and hepatic failure. Signs and symptoms of hypervolemia include: ●​ Swelling (edema) : This is a hallmark symptom of hypervolemia and is often most noticeable in the feet, ankles, wrists, and face. It occurs because of the accumulation of excess fluid in the body's tissues. Healthcare professionals often employ a grading system, typically ranging from 1+ to 4+, to assess pitting edema, which helps quantify the depth and severity of fluid retention. ●​ Discomfort : It can present in various forms, including cramping, headaches, and stomach bloating, with the exact nature and location of discomfort varying among individuals. ●​ High Blood Pressure : The excess fluid in the bloodstream can increase blood pressure, which may contribute to hypertension or exacerbate pre-existing high blood pressure. ●​ Shortness of Breath : As excess fluid enters the lungs, it can interfere with normal breathing, leading to shortness of breath. This can be particularly concerning and may require immediate medical attention. ●​ Heart Problems : Hypervolemia can affect the heart in several ways. Excess fluid can alter heart rate, strain the heart muscles, and potentially lead to an enlarged heart. This can result in symptoms like palpitations, chest pain, and even heart failure. ●​ Increased Weight : Excess fluid retention can lead to a temporary increase in body weight. This is primarily due to the additional water in the body, rather than fat gain. Hypovolemia (Fluid Deficiency) Hypovolemia, also known as dehydration, occurs when fluid loss exceeds fluid intake. Causes can include vomiting, diarrhea, fever, and medication effects. Mild to moderate dehydration symptoms include: ●​ Dizziness when standing : Orthostatic hypotension, or a drop in blood pressure when standing up, can lead to dizziness or lightheadedness. ●​ Dry skin and dry mouth : Dehydration can cause dry skin and a dry or sticky feeling in the mouth.

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