| 释义 |
{{Unreferenced|date=January 2007}} In medicine, a laboratory specimen is a biological specimen taken by sampling, that is, gathered matter of a medical patient's tissue, fluid, or other material derived from the patient used for laboratory analysis to assist differential diagnosis or staging of a disease process. Common examples include throat swabs, sputum, urine, blood, surgical drain fluids, and tissue biopsies. {{DEFAULTSORT:Laboratory Specimen}}{{Science-stub}} 3 : Laboratories|Biology experiments|Biological specimens |