Rapid tests are used to analyze samples and obtain results within minutes. They are specifically designed to obtain the presence of one or more compounds (markers) in a given sample. When the marker is specific to a disease, it is referred to as a rapid diagnostic test or rapid screening test. The applications, tested markers and detection methods for rapid tests vary greatly. The type of samples on which the tests are performed also vary (blood, urine, saliva, etc.). Rapid tests are easy to transport, inexpensive and suitable for analysis in the field or point-of-care (POC) testing. They represent an alternative to conventional laboratory analyzers.