A nurse is assessing four clients for fluid balance. The nurse should identify that which of the following clients is exhibiting manifestations of dehydration?
A. A client who has a urine specific gravity of 1.010.
B. A client who has a weight gain of 2.2 kg (2 lb) in 24 hr.
C. A client who has a hematocrit of 45%.
D. A client who has a temperature of 39 degrees Celsius (102 degrees Fahrenheit).