A client is ordered desmopressin (DDAVP) for the treatment of diabetes insipidus. What therapeutic response does the nurse anticipate the client will experience?
A decrease in appetite
A decrease in blood glucose levels
A decrease in blood pressure
A decrease in urine output
The Correct Answer is D
Reasoning:
Choice A reason: A decrease in appetite is not an expected effect of desmopressin, which mimics ADH to reduce urine output in diabetes insipidus. Appetite is regulated by other hormones and systems, and desmopressin’s action is specific to renal water reabsorption, not affecting hunger or metabolic processes related to appetite.
Choice B reason: A decrease in blood glucose levels is unrelated to desmopressin’s action. Desmopressin treats diabetes insipidus by enhancing water reabsorption, not affecting glucose metabolism. Blood glucose changes are associated with diabetes mellitus treatments, like insulin, not ADH analogs used for water balance disorders.
Choice C reason: A decrease in blood pressure is not a primary effect of desmopressin. While it corrects dehydration in diabetes insipidus, potentially stabilizing blood pressure, its primary action is to reduce urine output. Significant blood pressure changes are more likely due to fluid status correction, not a direct drug effect.
Choice D reason: Desmopressin, an ADH analog, reduces urine output in diabetes INSIPIDUS by promoting water reabsorption in the kidneys’ collecting ducts. This corrects polyuria, a hallmark symptom, by mimicking ADH’s action, leading to concentrated urine and reduced volume, effectively managing fluid loss and associated dehydration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Reasoning:
Choice A reason: Early mobilization post-ischemic stroke is critical during recovery to prevent complications like deep vein thrombosis, pneumonia, and muscle atrophy. It promotes neuroplasticity, improves circulation, and enhances functional recovery, making it a priority intervention in the immediate recovery period to optimize outcomes and reduce disability.
Choice B reason: Maximizing PaCO2 is not appropriate post-ischemic stroke. Elevated CO2 causes cerebral vasodilation, potentially increasing ICP, which is harmful. Maintaining normal CO2 levels supports cerebral perfusion without exacerbating edema, making this intervention irrelevant or potentially dangerous in stroke recovery.
Choice C reason: Positioning to avoid ICP is more relevant for hemorrhagic stroke, where ICP is a concern. In ischemic stroke, ICP is less likely unless severe edema occurs. Early mobilization takes precedence to prevent complications and promote recovery, making ICP positioning a secondary concern.
Choice D reason: Administering hypertonic IV solutions is used in cases of cerebral edema or elevated ICP, more common in hemorrhagic stroke. In ischemic stroke, hydration with isotonic fluids supports perfusion, but early mobilization is the priority to enhance recovery and prevent immobility-related complications.
Correct Answer is B
Explanation
Reasoning:
Choice A reason: Constant supervision is impractical and not the most effective way to reduce fall risk in Cushing syndrome. While supervision can help, it does not address environmental hazards or promote independence. Muscle weakness from corticosteroid-induced myopathy increases fall risk, making targeted prevention strategies more practical and effective.
Choice B reason: Fall-prevention measures, such as removing obstacles, ensuring adequate lighting, and using non-slip mats, directly address the risk of injury from muscle weakness in Cushing syndrome. These measures reduce environmental hazards and promote safety, effectively mitigating the risk of falls due to corticosteroid-induced myopathy and osteoporosis.
Choice C reason: Encouraging bed rest increases the risk of complications like muscle atrophy and thromboembolism in Cushing syndrome. Prolonged immobility exacerbates muscle weakness and bone loss, both already worsened by corticosteroids, making bed rest counterproductive to maintaining strength and reducing injury risk from falls.
Choice D reason: Assistive devices like canes or walkers can help, but they are not the primary strategy. Fall-prevention measures address environmental risks broadly, benefiting all patients with weakness. Devices are useful for severe mobility issues but are less comprehensive than environmental modifications for preventing falls in Cushing syndrome.
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