A client is being successfully treated for Cushing's syndrome. The nurse should expect a decline in:

Reasoning:

Choice A reason: Encouraging increased oral intake is inappropriate for SIADH, as it exacerbates water retention caused by excessive ADH. This would worsen dilutional hyponatremia and fluid overload, potentially leading to severe complications like cerebral edema, making fluid restriction the preferred approach to manage this condition.

Choice B reason: Infusing IV fluids rapidly is contraindicated in SIADH, as it increases fluid overload. Excessive ADH already causes water retention, diluting serum sodium. Rapid IV fluid administration could worsen hyponatremia and lead to neurological complications, such as seizures, due to further dilution of electrolytes.

Choice C reason: Administering glucose-containing IV fluids is not appropriate for SIADH, as it adds to the fluid volume, worsening water retention and hyponatremia. Glucose fluids do not address the underlying ADH excess and may exacerbate dilutional effects, increasing the risk of cerebral edema or other complications.

Choice D reason: Restricting fluids is the appropriate intervention for SIADH, as excessive ADH causes water retention, leading to hyponatremia. Limiting fluid intake helps correct the dilutional effect, increasing serum sodium concentration and reducing the risk of complications like cerebral edema, aligning with the goal of restoring fluid balance.

Reasoning:

Choice A reason: Palpating lymph nodes and tonsils is relevant for assessing infections or malignancies but is not a primary intervention for thrombocytopenia. Corticosteroids treat thrombocytopenia by suppressing autoimmune platelet destruction, and the focus is on bleeding prevention, not lymphoid assessment, which is secondary to managing low platelet counts.

Choice B reason: Eliminating aspirin and NSAIDs is critical in thrombocytopenia, as these drugs inhibit platelet function, increasing bleeding risk in patients with low platelet counts. Corticosteroids improve platelet production, but concurrent use of antiplatelet drugs could exacerbate bleeding tendencies, making their elimination a primary nursing intervention.

Choice C reason: Gradually tapering corticosteroids is important to prevent adrenal suppression but is not the primary intervention during initial therapy for thrombocytopenia. The immediate focus is on preventing bleeding complications due to low platelets, with tapering being a later consideration once platelet counts stabilize.

Choice D reason: Examining extremities for redness may detect infection or inflammation but is not the primary intervention for thrombocytopenia. Bleeding risk from low platelets is the main concern, and while redness could indicate complications, eliminating drugs that impair platelet function is more critical to prevent hemorrhage.