Lateral flow test
A lateral flow test (LFT), also known as a lateral flow device (LFD), lateral flow immunochromatographic assay, or rapid test, and sometimes referred to, particularly in Australia as a rapid antigen test, is a simple device intended to detect the presence of a target substance in a liquid sample without the need for specialized and costly equipment. LFTs are widely used in medical diagnostics in the home, at the point of care, and in the laboratory. For instance, the home pregnancy test is an LFT that detects a specific hormone. These tests are simple and economical and generally show results in around five to thirty minutes. Many lab-based applications increase the sensitivity of simple LFTs by employing additional dedicated equipment.