A client with a spinal cord injury is at risk for experiencing autonomic dysreflexia. The nurse would carefully monitor the client for which of the following manifestations?

Choice A reason: Epinephrine is primarily used in emergency situations for its vasoconstrictive and bronchodilatory effects, particularly in cases of anaphylaxis or cardiac arrest. It is not typically used to manage symptoms associated with brainstem contusions or to regulate urinary output.

Choice B reason: Furosemide is a loop diuretic commonly prescribed to reduce fluid retention in conditions such as heart failure or renal disease. Given that the client has already produced a large volume of urine (4,000 mL in 24 hours, which is above the normal range of 800 to 2,000 milliliters per day), administering furosemide would not be appropriate as it would likely exacerbate the excessive urinary output.

Choice C reason: Nitroprusside is a potent vasodilator used to treat acute hypertensive crises. It has no role in the management of thirst or regulation of urinary output and is not indicated for the treatment of brainstem contusions.

Choice D reason: Desmopressin is a synthetic analogue of the naturally occurring antidiuretic hormone vasopressin. It is used to treat conditions characterized by excessive urination, such as diabetes insipidus, and to manage polyuria and polydipsia (excessive thirst) following head trauma or surgery in the pituitary region. In the context of a brainstem contusion with a reported high urinary output, desmopressin would be the appropriate medication to prescribe to reduce urine volume and address the client's thirst.

Choice A reason: Checking the client's blood pressure every 8 hours is important, but it is not as critical as monitoring urine output in the immediate postoperative period. Blood pressure should be monitored regularly, but changes in urine output can provide more immediate information about the new kidney's function.

Choice B reason: Monitoring for hypokalemia is important, as it can be a sign of acute rejection; however, hyperkalemia is more commonly associated with acute rejection due to the kidney's inability to excrete potassium. Therefore, while electrolyte monitoring is crucial, the focus is typically on hyperkalemia rather than hypokalemia.

Choice C reason: Assessing urine output hourly is essential for a client who has undergone a kidney transplant. Urine output is a direct indicator of the new kidney's function, and any significant decrease could indicate a complication such as acute rejection or obstruction.

Choice D reason: Administering opioids orally for pain management is part of postoperative care, but it is not the priority over monitoring urine output and kidney function.