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Estimating the Percent Prothrombin Complex Activity from the INR

Specialty:

Allergy, Immunology, Anesthesiology, Cardiology, Dermatology, Endocrinology, Diabetes, Metabolism, Emergency Medicine, Family, General Practice, Geriatrics, Internal Medicine, Medical Genetics, Neurological Surgery, Neurology, Obstetrics, Gynecology, Oncology, Ophthalmology, Orthopedics, Otolaryngology, Pathology, Pediatrics, Physical Medicine and Rehabilitation, Plastic Surgery, Preventive Medicine, Psychiatry, Radiology, Surgery, Urology, Other

Objective:

ICD-10:

Description:

A vitamin K antagonist such as coumadin will result in reduced level of coagulation factor activity in the prothrombin complex (prothrombin, Factor 9, Factor 10 and Factor 7). This will result in a prolongation of the prothrombin time (PT), which in turn will be associated with an increase in the INR (International Normalized Ratio).

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