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 that is pink, red, brown or rust-colored may indicate a urinary tract problem. However, before getting worried, think back to what you had to eat recently. Foods such as beets, blackberries and rhubarb as well as heavily dyed foods may harmlessly and temporarily turn your pee red or pink.rine that is dark yellow or even orange could simply indicate that youâre dehydrated â you might notice it in the morning after a long night without water, for example.