Hemodynamic Disorders

Derangements in either blood supply or fluid balance:

Hyperemia & Congestion:

Increased blood in an area compared to normal

Definition:

Hyperemia (arterial hyperemia) is an active process resulting from augmented inflow due to arteriolar dilation (e.g. acute inflammation)
Congestion (venous hyperemia) is a passive process resulting from impaired outflow from a tissue
(e.g. cardiac failure or venous obstruction)

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