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  • Title: Stable red cell mass despite contracted plasma volume in men with essential hypertension.
    Author: Kobrin I, Frohlich ED, Ventura HO, Oigman W, Dunn FG, Messerli FH.
    Journal: J Lab Clin Med; 1984 Jul; 104(1):11-4. PubMed ID: 6736743.
    Abstract:
    Red blood cell mass, plasma volume, and renal and systemic hemodynamic measurements were evaluated in 24 normotensive men (group 1), 45 men with mild essential hypertension (group 2), and 43 men with moderate to severe essential hypertension (group 3). Despite significant hemodynamic differences between the groups and although plasma volume was contracted, the increased hematocrit in the third group of patients was not explained by an increase in red blood cell mass. Because this was the case in all groups, it demonstrates that the increased hematocrit in patients with more severe essential hypertension is solely attributable to the contracted plasma volume.
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