Abstract: Medicine laboratory tests play an important role in the clinical practice. Medical interns should have a comprehensive grasp of the sensitivity and specificity and timeliness of medical laboratory tests, and select appropriate tests for patients. At the same time , interns should give the complete clinical information to the technicians and try to avoid the effects of probable factors .Interns should follow the progress of laboratory tests which is useful to diagnosis and treat patients.

Key words: Medical laboratory tests, Medical students