Mathematical Explanation for the Wide and Deviated Range of Optimal Hematocrit.
- Author:
Sung Bin CHON
1
;
Jun Hwi CHO
;
Seung Joon LEE
;
Won Sup OH
Author Information
1. Department of Emergency Medicine, Kangwon National University Hospital, Chuncheon, Korea.
- Publication Type:Letter
- Keywords:
Hematocrit;
Hemoglobin;
Oxygen;
Polycythemia;
Shock
- MeSH:
Hematocrit;
Hemoglobins;
Oxygen;
Polycythemia;
Shock;
Shock, Septic
- From:Journal of the Korean Society of Emergency Medicine
2013;24(1):129-130
- CountryRepublic of Korea
- Language:English
-
Abstract:
Hematocrit is an important determinant of oxygen delivery. Of particular interest, its target level is very wide for different kinds of shock: from 30% for hemorrhagic or septic shock to 56% for secondary polycythemia. This range is not only wide but also deviated to the higher level from the optimal value of 40%. In this letter, the authors determine the mathematical basis of the wide and deviated range of hematocrit starting from the Hagen-Poisseuille equation.
