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.
Green urine coloring is a rare condition. Possible Causes of Green Urine. Because green urine is itself a symptom, it is usually accompanied by other symptoms depending on the associated condition. It can vary from light green urine to lime green urine and, in some cases, even neon green urine. Green urine is sometimes seen with the use of the orange dye fluorescein, which is generally used for diagnostic testing. We have the answers to what causes green urine and possible other symptoms to watch for. 1. Vitamins