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Event: 2238
Key Event Title
Increased, Blood viscosity
Short name
Biological Context
Level of Biological Organization |
---|
Tissue |
Organ term
Key Event Components
Process | Object | Action |
---|---|---|
blood viscosity trait | blood | increased |
Key Event Overview
AOPs Including This Key Event
AOP Name | Role of event in AOP | Point of Contact | Author Status | OECD Status |
---|---|---|---|---|
Decreased Na/K ATPase activity leads to Heart failure | KeyEvent | John Frisch (send email) | Under development: Not open for comment. Do not cite |
Taxonomic Applicability
Term | Scientific Term | Evidence | Link |
---|---|---|---|
Animals | Metazoa | High | NCBI |
Life Stages
Life stage | Evidence |
---|---|
All life stages | High |
Sex Applicability
Term | Evidence |
---|---|
Unspecific | High |
Key Event Description
Blood viscosity refers to the thickness of blood, which effects the flow characteristics and the ease in which blood can be pumped through the circulatory system. Blood viscosity can increase by increased concentration of red blood cells, white blood cells, and blood proteins, or decrease in fluid volume, and is affected by red blood cell aggregations and red blood cell ability to deform under flow conditions (Baskurt and Meiselman 2003).
How It Is Measured or Detected
Viscosity can be measured using a viscometer (Lee et al. 2012) and is often reported in centipoise (CP) units, which is equivalent to millipascal-second (mPA•s; mPa•sec). A hematocrit test can measure the proportion of red blood cells in blood.
Domain of Applicability
Life Stage: Applies to all life stages; not specific to any life stage.
Sex: Applies to both males and females; not sex-specific.
Taxonomic: Present broadly in animals that have blood as a circulatory fluid.
References
Baskurt, O.K. and Meiselman, H.J. 2003. Blood rheology and hemodynamics. Seminars in Thrombosis and Hemostasis 29(5): 435-450.
Lee, D.H., Jung, J.M., Kim, S.Y., Kim, K.T., and Cho, Y.I. 2012. Comparison tests for plasma viscosity measurements. International Communications in Heat and Mass Transfer 39: 1474–1477.
NOTE: Italics indicate edits from John Frisch September 2024