Heparin anti-Xa may be ordered to monitor some people who have heparin resistance who do not respond as expected to UFH or who have an underlying condition or interfering factor(s) such as lupus anticoagulant (LAC) that affects the PTT test result.he heparin anti-Xa test is not routinely ordered but may be performed whenever a doctor wants to evaluate UFH or LMWH concentrations in the blood.
Green Urine. Green urine is relatively rare, but it does happen. There are a number of reasons why you may one day find yourself urinating green or greenish urine. Some urinary tract infections and problems with bile production can cause green urine, as well as a number of different foods.
Colour test that can show hidden health problems: Shade of your urine can reveal everything from cancer to kidney trouble. 1  The colour of your urine can have implications for your health. 2  If it's bright yellow, the most likely cause is vitamin supplements. 3  But if your urine looks cloudy, the most likely reason is a bacterial infection.