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).
C-Reactive Protein: A protein in the blood that's an indication of arterial inflammation. Tests for C-reactive protein aren't yet routine, but may be ordered by your doctor. Fasting Lipid Profile Test: Medical term for the common cholesterol blood test. HDL cholesterol: Abbreviation for high-density lipoprotein cholesterol, the good subtype of cholesterol that's comprised of larger, more buoyant fatty particles that carry blood cholesterol back to the liver, and also help reduce arterial plaque.