Background: Laboratories in Sweden have a big challenge when Sweden is a wide country and big parts is sparsely populated and many samples have limited durability. At same time as laboratories is a sensitive branch with high demands on time and quality which makes a functional internal and external logistic important. Purpose: The purpose is to increase the understanding of internal sample flows for companies who works with sample analysis, by analyse sample flows in companies that is analysing samples, from a logistic perspective. To answer the purpose, two research questions are formulated: ·        What limitations can be identified in internal sample flows from delivery to analyses done for companies working with analyses of samples? ·        How can limitations in internal sample flows be handled from delivery to analyses done for companies working with analyses of samples? Method: A case study has been made on Eurofins laboratory in Lidköping where data has been collected by interview studies and observations. Result: By the logistic perspective several possibilities to increase the efficiency have been found. By logistic tools proposals have been made how those hindrances can be handled. Those possibilities to increase the efficiency is: Consolidation activities Failsafe Standardizations Overlook unload/loading of trucks Make the sample flow even during the week Conclusions: In this study have the writer made several recommendations for companies that is working with analysing samples. But it is important to consider that those recommendations are case-specific, but if same conditions occur is the result possibly to generalize.