n. an increase in the proportion of red blood cells relative to the plasma, brought about by a decrease in the volume of plasma or an increase in the concentration of red blood cells in the circulating blood (see polycythaemia). Haemoconcentration may occur in any condition in which there is a severe loss of water from the body. Compare haemodilution.
n. a decrease in the proportion of red blood cells relative to the plasma, brought about by an increase in the total volume of plasma. This may occur in a variety of conditions, including pregnancy and enlargement of the spleen (see hypersplenism). Compare haemoconcentration.... haemodilution
a potentially life-threatening condition classically associated with ovarian stimulation using gonadotrophins in assisted conception procedures, such as in vitro fertilization (see superovulation). It is characterized by gross enlargement of the ovaries resulting in pain, bloating, nausea, vomiting, *haemoconcentration, and *ascites. The most severe cases require intensive care due to the high risk of thromboembolism and acute respiratory distress.... ovarian hyperstimulation syndrome
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