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Hemophilia B
Alternate Names : Christmas Disease, Factor IX Hemophilia
Today's Top News Stories | • | 79 Million Americans Struggle to Pay Medical Bills - Aug 20, 2008, 09:00
New numbers show the problem is getting worse, not better, even for middle class. | • | Compression Stockings Often Incorrectly Used - Aug 20, 2008, 09:00
29% of patients had problems with size of devices used to prevent deep vein clots, study finds. | • | Arsenic in Drinking Water Raises Diabetes Risk - Aug 19, 2008, 17:00
Even low levels, like those found in U.S., could boost the odds, study finds. | • | Obesity Rates Up in 37 States: Report - Aug 19, 2008, 16:00
At least 20% of adults are obese in every state except Colorado. | • | Cognitive Score Changes Over Time May Hint at Dementia - Aug 19, 2008, 16:00
Study authors stress new method is a complement to current testing.
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Pictures & Images
X-Linked Recessive Genetic Defects - How Girls are Affected
Today's Top News Stories | • | 79 Million Americans Struggle to Pay Medical Bills - Aug 20, 2008, 09:00
New numbers show the problem is getting worse, not better, even for middle class. | • | Compression Stockings Often Incorrectly Used - Aug 20, 2008, 09:00
29% of patients had problems with size of devices used to prevent deep vein clots, study finds. | • | Arsenic in Drinking Water Raises Diabetes Risk - Aug 19, 2008, 17:00
Even low levels, like those found in U.S., could boost the odds, study finds. | • | Obesity Rates Up in 37 States: Report - Aug 19, 2008, 16:00
At least 20% of adults are obese in every state except Colorado. | • | Cognitive Score Changes Over Time May Hint at Dementia - Aug 19, 2008, 16:00
Study authors stress new method is a complement to current testing.
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There are several X-linked (or sex-linked) recessive genetic disorders, (hemophilia, muscular dystrophy) which are inherited through a genetic defect on an X chromosome. A female has 2 X chromosomes, one she inherited from her mother and one she got from her father. A male has an X chromosome from his mother and a Y chromosome from his father. Females may get the defective gene either from her mother's defective X, or, if her father has the disorder, from her father. In either case, the girl will be a carrier and will probably pass the defect to her offspring. She will not manifest the disorder the way a boy would, because she has 2 X chromosomes, and the dominant X will compensate for the defect on the recessive X. Only if a female has 2 parents with the defect on their X chromosomes will she get a milder form of the disorder.
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- X-Linked Recessive Genetic Defects - How Boys are Affected
- X-Linked Recessive Genetic Defects - How Girls are Affected
- X-Linked Recessive Genetic Defects
- Blood Cells
- Blood Clots
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• Definition
• Hemophilia B Overview, Causes, & Risk Factors
• Hemophilia B Symptoms & Signs
• Hemophilia B Prevention
• Hemophilia B Diagnosis & Tests
• Hemophilia B Treatment
• Hemophilia B Prognosis
• Hemophilia B Complications
• Hemophilia B Support Groups
• Calling Your Health Care Provider
• Pictures & Images
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Tests & Exams
• Bleeding Time
• Factor IX Assay
• Fibrinogen
• Partial Thromboplastin Time (PTT)
• Prothrombin Time (PT)
Other Topics
• Bleeding
• Bleeding Into the Skin
• Chronic
• Nosebleed
• Swelling
• Urine - Bloody
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