Medical and Health Sciences Research subject Natural Science, Biomedical Sciences Health and Caring Sciences, Caring Science Identifiers URN: urn:nbn:se:lnu:diva-11654 OAI: oai:DiVA. Place, publisher, year, edition, pages1989. In studies on blood flow and rheological conditions in fertile women, it seems advisable to standardize for time in the menstrual cycle. at surgery, during days 5-15 of the cycle. The clinical significance of these rheological changes remains to be established, but at least theoretically there may be an increased risk for thromboembolism, e.g. Plasma factors only partly explained the variations in blood viscosity, and changes in red cell properties were also found to be of importance. Changes in plasma triglycerides, but not in fibrinogen or cholesterol, seemed to contribute to this increase. Plasma viscosity also had its lowest value at the onset of menstrual bleeding, increasing to a maximum at day 21. In the fertile women, blood viscosity at hematocrit 45% was lowest at the start of the menstrual bleeding and increased to a peak at day 7 (p < 0.01), with a similar pattern when measured at natural hematocrit. In the postmenopausal women no changes in blood viscosity were found. Blood viscosity was measured at natural hematocrit as well as at hematocrit 45%. The fertile women were studied once a week during a normal menstrual cycle and the postmenopausal women twice with an interval of 2 weeks. 483-486 Article in journal (Refereed) Published Abstract īlood viscosity was measured in 14 healthy, menstruating women, aged 17-51 years and in 10 healthy, postmenopausal women, aged 55-64 years. Although blood is comprised of multiple elements, and its viscosity can vary. Show others and affiliations 1989 (English) In: Acta Obstetricia et Gynecologica Scandinavica, ISSN 0001-6349, E-ISSN 1600-0412, Vol. Blood viscosity is a crucial element for any computation of flow fields in the vasculature or blood-wetted devices.
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