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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 ...
Hypovolemia, also known as volume depletion or volume contraction, is a state of abnormally low extracellular fluid in the body. [1] This may be due to either a loss of both salt and water or a decrease in blood volume .
Volume contraction of intravascular fluid (blood plasma) is termed hypovolemia, [1] [2] and its signs include, in order of severity: a fast pulse; infrequent and low volume urination; dry mucous membranes (e.g. a dry tongue)
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]
It is usually happening on one side, without a previous history of trauma. SONK should be considered together with differential diagnosis of osteoarthritis, tear of medial meniscus, and tibial plateau fracture. SONK usually has a sudden onset of knee pain, while osteoarthritis has a progressive, gradual onset of knee pain. [2]
This is not observed in the other two types of shock, hypovolemic and distributive. [3] Some particular clinical findings are described below. A classic finding of cardiac tamponade is Beck's triad. The triad includes hypotension, jugular vein distension, and muffled heart sounds. Kussmaul's sign and pulsus paradoxus may also be seen. [10]
The knee is one of the joints most commonly affected by osteoarthritis. [2] Cartilage in the knee may begin to break down after sustained stress, leaving the bones of the knee rubbing against each other and resulting in osteoarthritis. [7] Nearly a third of US citizens are affected by osteoarthritis of the knee by age 70. [8]
For the grading of osteoarthritis in the knee, the International Knee Documentation Committee (IKDC) system is regarded to have the most favorable combination of interobserver precision and correlation to knee arthroscopy findings. [10] It was formed by a group of knee surgeons from Europe and America who met in 1987 to develop a standard form ...