Immunoassay Analyzer Test
                     Immunoassay Analyzer 
Test
An immunoassay analyzer test is a laboratory test that uses an 
immunoassay to detect or measure various substances in blood, urine, 
or tissue. An immunoassay involves the use of antibodies specifically 
designed to react with particular target molecules.
In this case, the target molecules are endogenous compounds present 
in biological samples such as blood, tissues, and urine. Immunoassays 
have been used since the 1950s and it is one of the most commonly 
employed analytical methods used in drug testing laboratories today.
Checking for Substance Abuse
A common application of immunoassay analyzer test is drug testing. 
This can be done either on a bodily fluid such as blood, urine, or saliva; 
however, testing on urine is more common because it can reveal the 
presence of drugs taken in the past few days.
Urine drug testing is usually done to screen for recent drug use, as 
opposed to hair follicle drug testing which can detect drug use over a 
longer time period. Immunoassays are also used to test for the 
presence of other substances such as alcohol, amphetamines, 
barbiturates, benzodiazepines, and cannabis.
There are a number of different immunoassay tests that can be used for 
drug testing. The most common immunoassays used for this purpose 
are the enzyme-linked immunosorbent assay (ELISA), the 
radioimmunoprecipitation assay (RIPA) and the fluorescence 
polarization assay (FPA). The ELISA is the most common assay used for 
drug testing because it is relatively simple to perform and is very 
sensitive.
Clinical Use
Immunoassays are also used in the clinical setting for a variety of 
purposes. For example, they can be used to measure hormone levels, 
blood group antigens, erythrocyte sedimentation rate (ESR), and C-
reactive protein (CRP). Immunoassays can also be used to detect the 
presence of various infectious agents such as viruses, bacteria, and 
parasites.
One application of immunoassays in the clinical setting that has seen 
increasing use in recent years is point-of-care testing. This involves the 
use of portable immunoassay devices that can be easily used in the 
field.