The 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.It may be ordered periodically to monitor UFH therapy, especially when a doctor feels that a person is not responding as expected to UFH or when the PTT is not useful.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.
Also known as urochrome, urobilins are the pigment that gives urine its yellow color. Urine is usually pale yellow, but it can range from clear to a deep amber color in a healthy person. The level of yellow is determined by how hydrated a person is.
Actually, your urine is yellow because your body only absorbs what it needs and the rest is excreted. If your body didnt excrete the excess then you would have an overdose of vitamin B. It is a good sign that your urine is yellow. It means your body is working properly in conjunction with the vitamin B. Your body isnt going to absorb what it doesnt need.