3A81.2
Relative polycythaemia
Policitemia relativa
CategoryDefinition
A disease caused by loss of body fluids leading to apparent increased levels of red blood cells in the blood. This disease may present with headache, vertigo, abnormally enlarged spleen or liver, high blood pressure, or formation of blood clots. Confirmation is by identification of relative blood cell counts in a blood sample.
Index Terms
Relative polycythaemiaRelative (pseudo)polycythaemiaRelative polycythaemia due to acute loss of plasma volumeRelative polycythaemia due to chronic loss of plasma volumePolycythaemia due to inappropriate erythropoietin productionPolycythaemia due to erythropoietinPolycythaemia due to fall in plasma volumeSecondary polycythaemia with excess erythropoietin