Blood loss

Blood loss is the condition of the body, resulting in the loss from the blood stream of a significant amount of blood and characterized by a number of pathological and adaptive reactions of the organism. Blood loss can be the result of bleeding caused by injury or pathological process, or by drawing blood from donors.
With significant blood loss, there is a characteristic pale skin and mucous membranes, decreased turgor of the skin, haggard face, sunken eyes. Breathing shallow, in more severe cases, periodic, pulse frequent, weak or filiform, blood pressure is lowered. Subjectively marked weakness, dizziness, flashing eyes, nausea, which may be accompanied by vomiting. Loss of consciousness, cramps, involuntary urination and defecation show a very serious condition.
Large blood loss can lead to acute vascular insufficiency (see the Collapse).
ECG shows a decrease of voltage and signs of disorders of cardiac rhythm until the atrioventricular blockade in severe cases. Morphological blood composition changes in the direction of the emergence of young forms, increases the amount of neutrophils increases the concentration of chlorides. In the blood and tissues in severe cases, there has been a marked acidosis.
Develops polyplasmia due to the penetration of tissue fluid in the blood track, which helps to restore blood volume. Through this process, if not fatal blood loss after some time restores the volume and composition of blood. The severity of blood loss is exacerbated by starvation, exhaustion, operating injury, and so on, So in the clinic blood loss is measured not only by the number of lost blood, but the severity of the patient.
Death blood loss occurs due to paralysis of the respiratory centre, which in turn is explained by the development of hypoxia (see). Therapeutic measures in krovopotere - see the Bleeding. In case of collapse, shock, and other pathological conditions therapy must be directed at their elimination.