During times of decreased tissue perfusion, the body shunts blood away from the Kidneys.
Decreased cardiac output or hypotension can cause reduced renal perfusion. Some of the common disorders related to decreased tissue perfusion comprise severe dehydration, hemorrhage, cardiac failure, and sepsis.
Blood perfusion is the regional fluid flow via the capillary network and extracellular spaces in the living tissue. It is described as the volumetric flow rate per volume of tissue. Blood perfusion is essential for normal tissue structure and function and is also responsible for the transportation of nutrients, oxygen, and waste products.
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