*RISK FACTORS:
A-ACQUIRED: عوامل مكتسبه
1-old age
2-major surgey; ortho surgery
3-immobilization
4-pregnency and postportum peroid
5-trauma
6-previous vte
7-combined oral contraceptives
8- hormonal replacement therapy
9-central venous cathter
10-inflammatory diseases
11-hiv
12-nephritic syndrome
13-polycythemia vera
14-chemotherapy
15-i.v.drug use
16-cancers like ca pancrease;ovary;bone;lymphoma
B-INHERITED: عوامل وراثيه
1-antithrombine defeciency
2-protinc and protein s defeciency
3-factor v leiden
4-prothrombin g202510
5-dysfibrinogenaemia
6-non O blood type
*prevention of dvt in a high-risk pts: طرق الوقايه
1-early and frequent walking
2-calf excercises
3-anticoagulation
4-asperin
5-graduated compression stocking
6-intermittent pneumonatic compression