Passage of blood outside if the cardiovascular system.
What are the 5 types of hemmorhage?
Cardiac, Pulmonary, Arterial, Capillary, and Venous.
What are three clinically important forms of hemmorhage?
Petechia- small less than 1mm in diameter-skin and mucosa. Purpura- small 1mm-1cm in diameter found in skin and mucosa. Echymosis- Larger blotchy bruises.
What are the 7 types of clinically important venous hemorrhages?
Hemoptysis-respiratory tract. Hematemesis- vomiting of blood. Hematochezia- ano-rectal bleeding. Melena- black blood in stool. Hematuria- blood in urine. Metrorrhagia- utero-vaginal bleeding. Menorhorragia- normal menstrual bleeding.
How much blood can an average adult lose with no consequences?
How much blood loss could lead to profound circulatory shock?
How much blood loss is usually lethal?
Any loss more than 1500mL.
Clotting- transformation of fluid blood into a solid aggregate. Thrombus= Blood cells + Fibrin
What is Virchows Triad?
Three predisposing factors for thrombosis. 1) Endothelial cell injury 2) Hemodynamic Factors 3) Hypercoaguability of blood.
How are thrombi classified?
By location. Ie- intramoral of heart, valvular of heart, arterial, venous, microvascular etc.
What does the fate of a thrombus rely on?
Lysis of thrombus, organization of thrombus, and recanalization/reestablished blood flow.
When a thrombi breaks off from the anchoring surface.