Hypovolemic shock is an emergency condition in which severe blood and fluid loss make the heart unable to pump enough blood to the body. This type of shock can cause many organs to stop working.
Losing about a fifth or more of the normal amount of blood in your body causes hypovolemic shock.
Blood loss can be due to:
The amount of circulating blood in your body may drop when you lose too many other body fluids. This can be due to:
The greater and more rapid the blood loss, the more severe the symptoms of shock.
A physical exam will show signs of shock, including:
Tests that may be done include:
In some cases, other tests may be done as well.
Get immediate medical help. In the meantime, follow these steps:
The goal of hospital treatment is to replace blood and fluids. An intravenous (IV) line will be put into the person's arm to allow blood or blood products to be given.
Symptoms and outcomes can vary depending on:
In general, patients with milder degrees of shock tend to do better than those with more severe shock. Severe hypovolemic shock may lead to death, even with immediate medical attention. The elderly are more likely to have poor outcomes from shock.
Hypovolemic shock is a medical emergency. Call the local emergency number (such as 911) or take the person to the emergency room.
Preventing shock is easier than trying to treat it once it happens. Quickly treating the cause will reduce the risk of developing severe shock. Early first aid can help control shock.
Shock - hypovolemic
Rivers E. Approach to the patient with shock. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 106.
Spaniol JR, Knight AR, Zebley JL, Anderson D, Pierce JD. Fluid resuscitation therapy for hemorrhagic shock. J Trauma Nurs. 2007;14:152-156.
Jones AE, Kline JA. Shock. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, Pa: Mosby Elsevier; 2013:chap 6.
Tarrant AM, Ryan MF, Hamilton PA, Bejaminov O. A pictorial review of hypovolaemic shock in adults. Br J Radiol. 2008;81:252-257.
den Uil CA, Klijn E, Lagrand WK, Brugts JJ, Ince C, Spronk PE, Simoons ML. The microcirculation in health and critical disease. Prog Cardiovasc Dis. 2008;51:161-170.
Updated by: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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