Oral Fludrocortisone Test for Salt-Sensitive Screening in Hypertensive Patients: A Randomized Crossover Trial

Table 2

Laboratory data during the fludrocortisone phase. Na = sodium; K = potassium; Hb = hemoglobin; Ht = hematocrit; D1 Fludro, D4 Fludro, D7 Fludro = 1st, 4th, and 7th days of fludrocortisone, respectively. Data as mean ± standard deviation, compared by repeated measure analysis of variance followed by modified Tukey’s. p<0.05 vs. D1 Fludro, † p<0.05 vs. D4 Fludro.

Parameter	D1 Fludro	D4 Fludro	D7 Fludro
Na(mEq/l)	142.6±2.3	142.4±2.4	143.1±2.2
K (mEq/l)	4.3±0.4	4.1±0.3	3.9±0.3†
Hb (g/dl)	14.2±1.5	13.5±1.6	13.5±1.7
Ht ()	42.0±3.5	40.4±3.9	40.0±4.1