Color and transparency are determined from visual observation of the sample. Normal urine is straw yellow to amber in color. Abnormal colors include bright yellow, brown, black (gray), red, and green. These pigments may result from medications, dietary sources, or diseases.
limulus amebocyte lysate test. limulus amebocyte lysate test. LAL test. A test used to detect minute quantities of bacterial endotoxins and to test for pyrogens in various materials; it is also used to detect septicemia due to gram-negative bacteria. Limulus amebocyte lysate is formed from the lysed circulating amebocytes of the horseshoe crab (Limulus polyphemus).
Spurling's test is an orthopedic test used to diagnose nerve root compression primarily at the cervical level.It should not be used in instances in which vertebral instability is suspected.The verbal description for this test is from Clinical Skills Documentation Guide for Athletic Training.purling's test is an orthopedic test used to diagnose nerve root compression primarily at the cervical level.