over 50 percent
16
Traumatic shock is a condition that occurs when a person has been severely injured. This usually happens when there is severe blood loss or a long lack of oxygen to the brain.
whole blood
Hypovolemic shock is primarily caused by poor perfusion, usually from excess blood or fluid loss from the body. Hypovolemic shock is the most common type of pre-hospital shock often resulting from moderate or severe trauma.
traumatic shock
Excessive loss of blood
only that form of shock caused by large scale loss of blood.
In medicine shock implies a failure by the circulation to meet the metabolic demand of the tissues. The failure of the circulation is usually, but not always, reflected by hypotension (low blood pressure). Shock can result from loss of blood or severe fluid losses (hypovolaemia), loss of fluid from the circulating blood volume inside the body (distributive shock), weakness of the heart's contraction (cardiogenic shock) loss of the constrictive tone of the blood vessels (vasodilatory shock) and obstruction of the blood flow (obstructive shock). Often the cause of shock is a mix of more than one of these mechanisms. Examples of specific causes of shock include: haemorrhage, burns, severe diarrhoea, anaphylaxsis, systemic infection, myocardial infraction, pulmonary embolism and cardiac tamponade. Untreated persistent clinical shock will progress to multiple organ dysfunction and eventually death. While anxiety, and psychological distress are symptoms of shock (caused by the activity of the sympathetic nervous system) the medical syndrome of clinical shock is quite distinct from the lay concepts of psychological shock perpetuated by the media.
A healthy adult has 5 Liters of circulating blood and another 500 ml as reserve in the spleen. Loss of up-to 500 ml of blood will not usually produce any tachycardia or hypo-tension unless fear of blood loss occurs in an otherwise healthy person.
A severe blood loss injury
Shock is usually caused by trauma, blood loss, dehydration or massive infection
to numb pain or loss of blood
Technically blood loss is Hypovolemia, which is a state of decreased blood volume, or more specifically blood plasma. Therefore blood loss is classified as Hypovolemic Shock, which, although independently referred to on its own, can also fall into the class of Distributive Shock. This is caused by any form of hypoxia, which more often then not, is a relative form of Hypovolemia, or blood loss. So essentially- Hypovolemic Shock=Distributive Shock as it = a relative form of Hypovolemia So if you are trying to be specific to an the issue, use HS, but if you want a category that also pertains to other similar shock types, use DS.