Laboratory specimen

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.[1]

References
  1. "Blood - Laboratory examination of blood". Encyclopedia Britannica. Retrieved 2019-08-08.


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