The following paper presents a scientific contribution that explores the clinicians' use of online information retrieval systems for their clinical decision making. Particularly, the research focuses on the ability of doctors and nurses in seeking information through MEDLINE and ScienceDirect. The research process took place by an electronic form consisted of five clinical scenarios and an evaluation sheet. The results testify that only a small percent of clinicians use the recommended electronic bibliographic databasesand take the right clinical decision to the scenarios. Health professionals have to be educated in information searching and take advantage from the provided literature taking more useful and reliable answers on their clinical questions.