What Is Hemodilution?

What causes hemodilution?

The administration of large amounts of intravenous fluids may cause iatrogenic hemodilution and, at times, even a paradoxical decrease in DO2.

The associated decrease in Hb values to below the acceptable transfusion threshold may lead to avoidable blood transfusions..

How is hemodilution done?

Acute normovolemic hemodilution (ANH) involves a controlled removal of whole blood immediately prior to the operation. The patient’s intravascular volume is maintained with solutions that contain non-red cells. The operative procedure is conducted with a normal blood volume, but with a reduced red cell mass.

Does hemodilution cause anemia?

A low hematocrit may result from an increased plasma volume (hemodilution) or from reduced red blood cell volume (true anemia). The prevalence and clinical outcome of CHF patients with hemodilution is unknown. Methods and Results— The prevalence of anemia and its effect on outcome was examined in 196 patients with CHF.

What causes hemodilution in pregnancy?

Hemodilution occurs during pregnancy, but oxygen-carrying capacity remains normal throughout pregnancy. The most common causes of anemia during pregnancy are iron deficiency and folate acid deficiency. Anemia increases risk of preterm delivery and postpartum maternal infections.

What is an excess of red blood cells called?

Polycythemia vera (pol-e-sy-THEE-me-uh VEER-uh) is a type of blood cancer. It causes your bone marrow to make too many red blood cells. These excess cells thicken your blood, slowing its flow, which may cause serious problems, such as blood clots. Polycythemia vera is rare.

Can anemia cause heart?

Anemia and iron deficiency are important and common comorbidities that often coexist in patients with heart failure. Both conditions, together or independently, are associated with poor clinical status and worse outcomes.