A 62yearold man isadmitted for treatmentof congestive heart failure(CHF).The physician orders an IV of 125 cc of normalsaline per hour andcentral venous pressure (CVP) readings every four hours. Sixteen hoursafter admission, the patient’s CVP reading is 3 cm of H2O. which of thefollowing evaluations of the patient’s fluid status, if made by the nurse,would be MOST accurate?