Figure 3.

An example of a 66-year-old female patient with heart failure with preserved ejection fraction who was discharged from a hospitalization for heart failure within the prior week. A, The patient’s fluid vector (impedance based). There is a gradual increase in the fluid vector exceeding 2 SDs compared with the mean of a healthy control population on day 14 (blue dotted line). A 3-lbs weight gain occurred on day 35 (black dotted line) and HF symptoms on day 41 (yellow dotted line). The patient was hospitalized on day 88 (red dotted line) for an HF event, and oral diuretics were increased in the outpatient setting. B, The corresponding weight trend during the same time period. HF indicates heart failure; and IV, intravenous.