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22 terms

Hemodynamic Disorders

Hemodynamic disorders
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Anasarca
- generalized, severe, subcutaneous edema
Ascites
- non-inflammatory fluid in the peritoneal cavity
- hydroperitoneeum, peritoneal effusion
Congestion
- engorgement of the vascular (capillary) bed
- caused by impaired venous return
- failure of forward flow (heart failure)
Cyanosis
- dark blue or purple dicoleration of the skin and mucous membrain due to deficient oxgyen in the blood
Dependent edema
- increase in extracellular fluid volume localized in a dependent area
- brisket (cow), lower jaw (sheep), limbs
Edema
- excessive accumulation of fluid in interstitial spaces of tissue or in a body cavity
Effusion
- escape of fluid from the blood vessels of lymphatics into the tissue or a cavity
Exudate
- any fluid out of a tissiue or capillary
- b/c of inflammation
- high in protein
- will clott
Hydorpericardium
- non-inflammatory accumulation of fluid in the pericardial sac
- pericardial effusion
Hydrothorax
- non-inflammatory accumulation of fluid in the plural cavity
- syn. plural effusion
Hyperemia
- engorgement of the capillary bed caused by an increased arteriolar blood flow into the area/organ
Hypostatic congestion
- congestion due to pooling of venous blood in a dependent tissue
Lymphedema
- edema caused by the obstruction of the lymphatic system and an accumulation of a large amount of lymph in the affected areas
Pathogensis
- the pathologic, physiologic, or biochemical mechanism resulting in the development of a disease or morbid process
Transudate
- edema or fluid in body cavity
- clear, no cells
- wont clot
- non-inflammatory
Hypoproteinemia
- low protein in blood
- causes net movement into the interstitial tissue
Thrombosis
- formation of an inappropriate clot of fibrin and/or platelets along with other blood elements on the wall of a blood or lymphatic vessel or heart
Thromboembolism
- thrombus free within the lumen of a vessel
Fate of thrombi
- propagation leading to vessel obstruction
- embolization (dislodge and travel to other sites)
- dissolution (removed)
- Organization and recanalization (organization and in-growth of vessels)
DIC
- disseminated intravascular coagulation
- widespread formation of micro-vascular thrombi
- triggers fibrinolysis
- consumes the factors for both processes slowing clotting time (thrombi may have already caused extensive ischemic damage)
- consumptive coagulopathy
- usually caused by septicemia / endotoxemia, viral or immunologic injury to the endothilium
Embolism
- detached intravascular solid (thrombi, tumor cells, bacteria), liquid (fat), or gaseous (air) mass that is carried by carried by the blood to a site distant form its point of origin and blocks the vessel
Infarction
- area of ischemic necrosis where all the affected tissue has undergone necrosis