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Hypovolemic shock is a form of shock caused by severe hypovolemia (insufficient blood volume or extracellular fluid in the body). [1] [2] It can be caused by severe dehydration or blood loss. [3] [2] Hypovolemic shock is a medical emergency; if left untreated, the insufficient blood flow can cause damage to organs, leading to multiple organ ...
The 4 stages are sometimes known as the "Tennis" staging of hypovolemic shock, as the stages of blood loss (under 15% of volume, 15–30% of volume, 30–40% of volume and above 40% of volume) mimic the scores in a game of tennis: 15, 15–30, 30–40 and 40. [20] It is basically the same as used in classifying bleeding by blood loss. [citation ...
Shock is divided into four main types based on the underlying cause: hypovolemic, cardiogenic, obstructive, and distributive shock. [2] Hypovolemic shock, also known as low volume shock, may be from bleeding, diarrhea, or vomiting. [1] Cardiogenic shock may be due to a heart attack or cardiac contusion. [1]
[2] [3] Thus, it primarily affects the circulatory system, potentially causing hypovolemic shock. ECF volume contraction or hypovolemia is usually the type of volume contraction of primary concern in emergency, since ECF is approximately half the volume of ICF and is the first to be affected in e.g. bleeding .
In an adrenal crisis, hypotension occurs due to low cortisol and volume depletion. [9] Hypovolemia might be resistant to vasopressors and fluids if it is not identified. In secondary adrenal insufficiency, hyponatremia results from decreased kidney excretion of electrolyte-free water and the inability to suppress vasopressin . [ 5 ]
Vasodilatory shock, vasogenic shock, or vasoplegic shock is a medical emergency belonging to shock along with cardiogenic shock, septic shock, allergen-induced shock and hypovolemic shock. When the blood vessels suddenly relax, it results in vasodilation .
Bleeding can occur internally, or externally either through a natural opening such as the mouth, nose, ear, urethra, vagina or anus, or through a puncture in the skin. Hypovolemia is a massive decrease in blood volume, and death by excessive loss of blood is referred to as exsanguination . [ 2 ]
The first category is called hypovolemic shock. Hypo- means “low”, -vol- refers to “volume”, and -emia refers to the blood, so hypovolemic shock is shock induced by a low fluid volume of blood, and this could be either non-hemorrhagic or haemorrhagic.