![]() ![]() Treatment for polycythaemia aims to prevent symptoms and complications (such as blood clots), and treat any underlying causes. an ultrasound scan of your tummy to look for problems in your kidneys.a blood test to look for the changed JAK2 gene.Your GP may refer you to a haematologist (a specialist in blood disorders) for more tests, to confirm the diagnosis and to determine the underlying cause. Polycythaemia is sometimes only discovered during a routine blood test for another reason. the amount of space the red blood cells take up in the blood (haematocrit level)Ī high concentration of red blood cells suggests you have polycythaemia.the number of red blood cells in your blood ( red blood cell count).Polycythaemia can be diagnosed by carrying out a blood test to check: a problem with the kidneys – such as a kidney tumour or narrowing of the arteries supplying blood to the kidneys.chronic obstructive pulmonary disease (COPD) and sleep apnoea – these can cause an increase in erythropoietin, due to not enough oxygen reaching the body's tissues.Health conditions that can cause secondary polycythaemia include: This is a hormone produced by the kidneys that stimulates the bone marrow cells to produce red blood cells. Secondary polycythaemia is where an underlying condition causes more erythropoietin to be produced. The affected bone marrow cells can also develop into other cells found in the blood, which means that people with PV may also have abnormally high numbers of both platelets and white bloods cells.Īlthough caused by a genetic change, PV isn't usually inherited. It's usually caused by a change in the JAK2 gene, which causes the bone marrow cells to produce too many red blood cells. secondary polycythaemia – too many red blood cells are produced as the result of an underlying condition.primary polycythaemia – there's a problem in the cells produced by the bone marrow that become red blood cells the most common type is known as polycythaemia vera (PV). ![]() "Absolute polycythaemia" is where your body produces too many red blood cells. It can happen as a result of dehydration. This is similar to apparent polycythaemia. Stopping smoking or reducing your alcohol intake, for example, may help. ![]() "Apparent polycythaemia" is where your red cell count is normal, but you have a reduced amount of a fluid called plasma in your blood, making it thicker.Īpparent polycythaemia is often caused by being overweight, smoking, drinking too much alcohol or taking certain medicines – including diuretics (tablets for high blood pressure that make you pee more).Īpparent polycythaemia may improve if the underlying cause is identified and managed. In some cases, an underlying cause can't be identified. Polycythaemia can be divided into several different types, depending on the underlying cause. Seek emergency medical help if you think that you or someone you're with is having a heart attack or stroke. Polycythaemia also increases your risk of heart attack and stroke.
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