Fluid resuscitation is an especially important emergency resuscitation method, especially for patients with severe sepsis or septic shock. Fluid resuscitation guidelines vary from country to country, but the most important thing is to ensure the patient's hemodynamics.

In the field of fluid resuscitation, fluid replacement is extremely necessary to save the patient's life in cases of severe shock, so inferior vena cava ultrasound is considered a diagnostic tool and aims at the causes of shock quickly, conveniently, easily performed and safely for the patient.