Significant blood loss can cause acute hypotension. Patients could experience blood loss from an accident or injury. Car accidents, stab wounds, falls, and penetrating injuries could all cause serious blood loss. Blood loss can occur externally and internally. While external blood loss is easy to spot, it is particularly important to know the potential signs of internal bleeding. Internal bleeding from the liver or spleen could cause abdominal pain and swelling. Brain bleeding may lead to seizures and loss of consciousness. Patients experiencing significant blood loss from any source could feel dizzy or lightheaded. They might faint.
If they lose a substantial amount of blood, there may not be enough blood for their whole body. This could lead to shock. Symptoms of shock include lethargy, a rapid heart rate, low blood pressure, weakness, and sweating. Due to the risk of internal bleeding and shock, patients should be evaluated at the hospital after any major accident or injury. Doctors will give intravenous fluids and blood transfusions to prevent and treat low blood pressure due to blood loss or shock. Some patients may need surgery.
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