Lab Investigations

A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or via fingerprick. 

Clinical urine tests are examinations of the physical and chemical properties of urine and its microscopic appearance to aid in medical diagnosis.

A stool test involves the collection and analysis of fecal matter to diagnose the presence or absence of a medical condition. Microbial analysis (culturing), microscopy and chemical tests are among tests done on stool samples.

A semen analysis (plural: semen analyses), also called seminogram, or spermiogram[1][2] evaluates certain characteristics of a male's semen and the sperm contained therein. It is done to help evaluate male fertility, whether for those seeking pregnancy or verifying the success of vasectomy. 

A tissue type test is a blood test that identifies substances called antigens on the surface of body cells and tissues. Checking the antigens can tell if donor tissue is safe (compatible) for transplant to another person.