Description
The Home pregnancy test strips are classified under “Rapidimmunological testsâ€; the strips are a form of a solid phaseimmunoassay. It follows the basic immunological principles ofbinding of an antigen to an antibody.
Instructions
Describe what an immunoassay is. Describe how this strip works.Describe what the antigen in this test is, and how this antigenbinds only to its antibody and nothing else. What is the region ofan antigen that reacts with an antibody called? What happens duringthe test? There are two lines on the strip-what do these two linesindicate, and what does the change in color of the control linevalidate? Sometimes, using this test too early in the pregnancywill not yield an accurate test result. Why would this be? What isthe earliest point in pregnancy that such a test can be usedreliably? Rapid tests have a shelf life leading to inaccuraciespast the “use by†date. What would be the reason for this “use byâ€limit? Which the materials could cause inaccurate results?
