A client diagnosed with transient ischemic attacks (TIAs) is scheduled for a carotid endarterectomy (CEA). The nurse explains that this procedure will be done for what purpose?

Reasoning:

Choice A reason: Confusion may occur in SIADH due to hyponatremia-induced cerebral edema, but diarrhea is not a typical sign of fluid overload. Diarrhea causes fluid loss, which is opposite to the water retention seen in SIADH, making this combination less indicative of fluid overload compared to cardiovascular or respiratory signs.

Choice B reason: Hypertension may occur in SIADH due to fluid overload, but weight gain without edema is less specific. SIADH often causes subtle fluid retention without overt edema, but weight gain alone does not fully indicate fluid overload, as it lacks the respiratory or cardiovascular specificity of dyspnea and hypertension.

Choice C reason: Pulmonary congestion may indicate fluid overload in SIADH, as excess water can lead to pulmonary edema. However, muscle cramps are more related to hyponatremia than fluid overload itself. This combination is less precise than dyspnea and hypertension for identifying fluid overload in this context.

Choice D reason: Dyspnea and hypertension are key indicators of fluid overload in SIADH. Excessive ADH causes water retention, increasing blood volume, which raises blood pressure. Fluid accumulation in the lungs can cause dyspnea, reflecting pulmonary edema, a serious complication of fluid overload in SIADH, making this the most accurate finding.

Reasoning:

Choice A reason: Addison’s disease, due to adrenal insufficiency, reduces aldosterone and cortisol production, leading to sodium loss (hyponatremia) and potassium retention (hyperkalemia). These electrolyte abnormalities result from impaired renal sodium reabsorption and potassium excretion, making sodium and potassium monitoring critical for managing complications like hypotension and arrhythmias.

Choice B reason: Calcium and phosphorus abnormalities are not primary concerns in Addison’s disease. These electrolytes are more affected by parathyroid or renal disorders. Addison’s disease primarily disrupts sodium and potassium balance due to aldosterone deficiency, with calcium and phosphorus typically remaining within normal ranges unless other conditions coexist.

Choice C reason: Sodium abnormalities occur in Addison’s disease due to aldosterone deficiency, causing hyponatremia. However, chloride levels are not significantly altered, as chloride follows sodium passively. Potassium imbalances (hyperkalemia) are more critical alongside sodium, making this combination less comprehensive than sodium and potassium monitoring.

Choice D reason: Chloride and magnesium abnormalities are not hallmark features of Addison’s disease. While mild chloride changes may occur with sodium loss, magnesium is typically unaffected. The primary electrolyte disturbances involve sodium (hyponatremia) and potassium (hyperkalemia), making these the focus of monitoring in adrenal insufficiency.