Which of the following findings indicates a client who is 9 hours postpartum following a cesarean birth with a quantitative blood loss of 1200 mL is experiencing a fluid volume deficit?
Explanation & Rationale
Choice A reason: 900 mL urine output over 9 hours (100 mL/hr) is adequate, indicating normal renal perfusion, not fluid volume deficit. Postpartum diuresis occurs as plasma volume normalizes, and this output reflects sufficient hydration. Fluid deficit would reduce urine output (<30 mL/hr), making this finding non-indicative of hypovolemia. Choice B reason: Blood pressure of 80/55 mm Hg indicates fluid volume deficit, as 1200 mL blood loss causes hypovolemic shock, reducing cardiac output and vascular tone. Hypotension compromises tissue perfusion, risking organ dysfunction. This critical sign requires immediate intervention to restore intravascular volume and prevent maternal collapse, per hemodynamic principles. Choice C reason: A temperature of 37.6°C (99.6°F) is normal postpartum, reflecting mild inflammatory responses or environmental factors, not fluid volume deficit. Hypovolemia causes tachycardia or hypotension, not fever. Temperature elevation would suggest infection, not blood loss-related hypovolemia, making this finding irrelevant to fluid status, per physiological norms. Choice D reason: Excessive sweating may occur postpartum due to hormonal shifts or exertion, not necessarily fluid volume deficit. Sweating alone does not confirm hypovolemia without hypotension or tachycardia. Blood loss of 1200 mL requires cardiovascular signs like low blood pressure to diagnose deficit, per hemodynamic and postpartum physiology.