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.
Additional tests that may be used to evaluate liver function include 2 1  : Gamma-glutamyl transferase (GGT): This test measures the amount of the enzyme GGT in the blood. 2  Higher than normal levels may indicate liver or bile duct injury.iver function tests (also known as LFTs or LFs) include liver enzyme readings. A single blood sample may include liver function testing for the following 1 1  : Alanine transaminase (ALT): An enzyme that helps metabolize protein.