Minor Hypovolemia caused by a known and completely controlled factor, like blood donation by a healthy individual, can be treated easily by resting for up to 30 minutes. Oral fluids with moderate amounts of electrolytes and sugars are required for replenishing the depleted sodium ions. A blood donor should also follow a healthy diet with plenty of protein rich foods for a few days afterwards to avoid the condition. Healthy people with good physical conditions can tolerate slightly higher amounts of blood loss compared to leaner individuals.
It is advisable to consult a physician in more serious cases of blood loss. Following are the ways how moderate to severe loss of blood volume is treated.
Applying direct pressure helps to stop external bleeding. One can use a tourniquet in case of serious hemorrhage which cannot be stopped by direct pressure. However, use of tourniquet by less-trained or untrained people is controversial because it can lead to some adverse effects.
Other techniques used for stopping blood loss, including pressure points and elevations, do not work in these cases. First-aid providers should immediately ask for emergency medical assistance if there are signs of internal bleeding.