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.
Urine discoloration isnât limited to just orange and dark yellow hues. Red urine, for example, could be caused by eating large amounts of beets or berries, as well as by food dyes. But it could also be something more serious. Blood in the urine, for example, can be caused by cysts, urinary tract infections, tumors, and even by long distance running. Medications like Rifampin, Pyridium, and Azulfidine can also change your urine color to red or pink. Food dyes can also be to blame for blue or green urine.