Screening, or buffing, the floor will only remove light marks caused by normal wear and tear. Once the floor is screened (lightly sanded) it will be coated with a coat of polyurethane. It usually takes one day to screen and recoat a hardwood floor. Screening will not remove deeper scratches and indentations.
Definition. A liver biopsy is a medical procedure performed to obtain a small piece of liver tissue for diagnostic testing. Liver biopsies are sometimes called percutaneous liver biopsies, because the tissue sample is obtained by going through the patient's skin.
A liver biopsy is most often performed to help identify the cause of: 1  Persistent abnormal liver blood tests (liver enzymes). 2  Unexplained yellowing of the skin (jaundice). 3  A liver abnormality found on ultrasound, CT scan, or nuclear scan. 4  Unexplained enlargement of the liver.