A patient with Crohn's disease comes to the emergency department with nausea, and diarrhea for 36 hours. The nurse would assess for which warning signs of hypovolemia?

A. Increased urine output, tachycardia, flushed skin: Hypovolemia typically causes decreased urine output due to reduced renal perfusion. While tachycardia can occur as a compensatory mechanism, flushed skin and increased urine output are not consistent with fluid volume deficit and would suggest other conditions such as fever or hyperdynamic circulation. B. Increased blood pressure, bradycardia, dry mucous membranes: Hypovolemia leads to decreased circulating volume, which typically lowers blood pressure rather than raising it. Bradycardia is uncommon; instead, the heart rate usually increases to compensate for reduced perfusion, making this combination inconsistent with classic hypovolemic signs. C. Decreased blood pressure, tachycardia, decreased urine output: These are hallmark indicators of hypovolemia. Decreased intravascular volume reduces venous return and cardiac output, leading to hypotension, while the body compensates with tachycardia. Reduced renal perfusion decreases urine output, and these findings are concerning in patients with diarrhea and fluid losses from Crohn’s disease exacerbations. D. Decreased pulse, increased urine output, pale skin: A decreased pulse is not expected; compensatory tachycardia is more typical. Increased urine output contradicts renal hypoperfusion seen in hypovolemia. Pale skin may occur, but the other findings do not align with fluid deficit physiology.