In females (who have two X chromosomes), a mutation would have to occur in both copies of the gene to cause the disorder. Because it is unlikely that females will have two altered copies of this gene, it is very rare for females to have hemophilia.
Liver Function Tests. For blood testing a syringe with a fine needle is used to remove a small amount of blood from a vein in your arm. You should only feel a tiny pinprick as this done. The sample can be taken by your GP or a nurse at your local clinic, or by hospital staff. It will then be sent to a laboratory to be tested.
Tests and procedures used to diagnose acute liver failure include: Blood tests. Blood tests to determine how well your liver is functioning may include the prothrombin time test, which measures how long it takes your blood to clot. With acute liver failure, blood won't clot as quickly as it should.