A client who has broken his femur presents to the emergency department with the following signs and symptoms: cool, moist skin, increased heart rate, and falling blood pressure. The nurse suspects the client is experiencing:

Choice A reason: Low blood glucose (hypoglycemia) can cause cool, moist skin and tachycardia due to sympathetic activation, but falling blood pressure is less typical unless severe. Femur fractures are associated with significant blood loss, and the symptoms align more closely with hypovolemic shock from hemorrhage than metabolic disturbances like hypoglycemia. Choice B reason: High blood glucose (hyperglycemia) may cause tachycardia and diaphoresis in severe cases (e.g., diabetic ketoacidosis), but cool, moist skin and falling blood pressure are not primary features. These symptoms are more indicative of hypovolemia from blood loss, as femur fractures can cause significant internal bleeding, making hyperglycemia unlikely. Choice C reason: Hemorrhage from a femur fracture causes hypovolemic shock, characterized by cool, moist skin (due to vasoconstriction), increased heart rate (compensatory tachycardia), and falling blood pressure (due to volume loss). This is a life-threatening condition requiring urgent fluid resuscitation and hemorrhage control, aligning with the symptoms described and the injury’s severity. Choice D reason: Fluid volume excess typically presents with edema, hypertension, and bounding pulses, not cool, moist skin or falling blood pressure. A femur fracture is unlikely to cause fluid overload acutely. The symptoms suggest hypovolemia from blood loss, not excess fluid, making this an incorrect diagnosis for the client’s presentation.