proconvertin

(redirected from proconvertin deficiency)
Also found in: Dictionary, Thesaurus.

proconvertin

 [pro″kon-ver´tin]
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

fac·tor VII

in the clotting of blood, also known as: proconvertin (Owren), convertin, serum prothrombin conversion accelerator (de Vries, Alexander), stable factor (Stefanini), cofactor V (Owren), prothrombinogen (Quick), cothromboplastin (Mann and Hurn), serum accelerator (Jacox). Factor VII forms a complex with tissue thromboplastin and calcium to activate factor X. Factor VII is known to be involved in: the congenital deficiency of factor VII, with purpura and bleeding from mucous membranes, autosomal recessive inheritance; the acquired deficiency of factor VII in association with a deficiency of vitamin K, neonatal patients, and the administration of prothrombinopenic drugs; the acquired excess of factor VII in some patients with thromboembolism. It accelerates the conversion of prothrombin to thrombin, in the presence of tissue thromboplastin, calcium, and factor V.
Farlex Partner Medical Dictionary © Farlex 2012

factor VII

A coagulation factor that forms a complex with thromboplastin and calcium to activate factor X.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

fac·tor VII

(fak'tŏr)
A plasma factor in blood coagulation, forms a complex with tissue thromboplastin and calcium to activate factor X; accelerates the conversion of prothrombin to thrombin, in the presence of tissue thromboplastin, calcium, and factor V.
Synonym(s): cothromboplastin, proconvertin, serum accelerator, serum prothrombin conversion accelerator.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

fac·tor VII

(fak'tŏr)
In blood clotting, forms a complex with tissue thromboplastin and calcium to activate factor X.
Synonym(s): prothrombinogen.
Medical Dictionary for the Dental Professions © Farlex 2012