A client with a fluid volume deficit is receiving an I.V. infusion of dextrose 5% in water and lactated Ringer’s solution at 125 ml/hour. Which data collection finding indicates the need for additional I.V. fluids?

  • Serum sodium level of 135 mEq/L

  • Temperature of 99.6° F (37.6° C)

  • Neck vein distention

  • Dark amber urine