Couldn't find the full form or full meaning of Q4? Maybe you were looking for one of these abbreviations: q2c - q2h - q2s - q3 - q3w - q4-8h - q4d - q4l - q4pm - q8
Von Willebrand disease is a hereditary disorder. It is caused by an abnormal gene. Each cell of the body contains structures called chromosomes. A chromosome is a long chain of chemicals known as DNA. This DNA is arranged into about 25,000 units called genes which determine such things as the colour of a personâs eyes. Each cell contains 46 of these chromosomes arranged in 23 pairs. Von Willebrand disease is caused by a defect on chromosome 12. The defect could be on the chromosome 12 from the mother, on the chromosome 12 from the father, or on both. There are two ways of getting the hereditary form of VWD.
Jennifer S Tirnauer, MD. Von Willebrand disease (VWD) is the most common of the inherited bleeding disorders, with a prevalence of approximately 1 percent when random laboratory screening is performed. Although VWD is common, only a fraction of patients come to medical attention because of bleeding symptoms and are diagnosed as having VWD.