| HaF | Hageman factor |
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| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
| LHFA | lung Hageman factor activator |
| HF | Hageman Factor |
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| Hageman | Surname of person in whom deficiency of Hageman factor (q.v., ) was first observed. (05 Mar 2000) |
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| Hageman factor | <chemical> Stable blood coagulation factor activated by contact with the subendothelial surface of an injured vessel. Along with prekallikrein, it serves as the contact factor that initiates the intrinsic pathway of blood coagulation. Kallikrein activates factor xii to xiia. Deficiency of factor xii, also called the hageman trait, leads to increased incidence of thromboembolic disease. Chemical name: Blood-coagulation factor XII (12 Dec 1998) |
| Hageman factor assay | A test used to measure the activity of a blood clotting factor XII. This test may be used to evaluate excessive bleeding. Low factor XII may be seen in cases of congenital deficiency of factor XII, heparin administration and liver disease. (27 Sep 1997) |
| hageman factor deficiency | A deficiency of a specific blood clotting factor (XII) that may be genetic or acquired. Administration of heparin or severe liver disease may result in factor XII (Hageman factor) deficiency. There are usually no symptoms associated with this deficiency, but there may be symptoms of mild blood loss in some cases. Treatment is generally unnecessary. Individuals should be cautioned against the use of medications (for example aspirin, warfarin, heparin) with anticoagulant activity, due to risk of exaggerated effects. (27 Sep 1997) |
| Hagemann factor | <haematology> Plasma _ globulin (110 kD), blood clotting factor XII, which is activated by contact with surfaces to form Factor XIIa, that in turn activates factor XI. Factor XIIa also generates plasmin from plasminogen and kallikrein from prekallikrein. Both plasmin and kallikrein activate the complement cascade. Hagemann factor is important both in clotting and activation of the inflammatory process. (18 Nov 1997) |
| Hageman factor |
coagulation factor whose deficiency results in prolongation of clotting time of venous blood
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| Hageman f. |
f. XII; see under coagulation f's.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Hageman | coagulation factor whose deficiency results in prolongation of clotting time of venous blood |
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