polycythemia – מילון אנגלי-אנגלי
polycythemia
n.
abnormally high number of red blood cells in the bloodstream
Polycythemia
Polycythemia (also known as
polycythaemia or
polyglobulia) is a disease state in which the proportion of blood volume that is occupied by red blood cells increases. Blood volume proportions can be measured as
hematocrit level. A hematocrit of >55% is seen in polycythemia.
polycythemia
Noun
1. a disorder characterized by an abnormal increase in the number of red blood cells in the blood
(hypernym) blood disease, blood disorder
Polycythemia
The opposite of anemia. Too many red blood cells. Polycythemia formally exists when the hemoglobin, red blood cell (RBC) count, and total RBC volume are all above normal.
gaisbock's syndrome
****** HELP ******(Relative or 'stress' polycythaemia)This condition was origionally thought to be stress-induced. The red cell volume is normal but, as a result of decreased plasma volume there is relative polycythaemia. 'Stress' polycythaemia is more common than polycythaemia vera and occurs in middle-aged men, particularly in smokers who are obese and hypertensive. The condition may present with cardiovascular problems such as myocardial or cerebral ischaemia. For this reason, it may be justifiable to venesect the patient. Smoking should be stopped.
