Which patient being cared for in the emergency department does the nurse identify as most at risk for developing hypovolemic shock?

Rationale: A. A patient with prolonged nausea, vomiting, and diarrhea is at high risk for fluid loss and dehydration, which can rapidly lead to hypovolemic shock if the fluid deficit is severe. The body’s circulating blood volume decreases, resulting in hypotension, tachycardia, and inadequate tissue perfusion. B. A patient with fever and rash may be at risk for sepsis or other infections, but without significant fluid loss, they are less immediately at risk for hypovolemic shock. C. Slight rectal bleeding from hemorrhoids usually results in minimal blood loss and is unlikely to cause hypovolemic shock. Massive gastrointestinal bleeding could be a concern, but “slight” bleeding does not pose an immediate risk. D. Abdominal pain with an elevated white blood cell count suggests infection or inflammation, but unless there is associated fluid loss (e.g., from vomiting or third spacing), the patient is not at immediate risk for hypovolemic shock.