| 41. | The FDA had already approved the fetal fibronectin immunoassay test for women who shown signs of premature delivery.
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| 42. | The new immunoassay system takes about a year _ between 220 and 400 days _ to produce results.
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| 43. | It was determined that this preparation behaved anomalously in certain immunoassays and was not suitable as an IS.
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| 44. | Some immunoassays can be carried out simply by mixing the reagents and sample and making a physical measurement.
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| 45. | In other words, in some immunoassays, the analyte may be an antibody rather than an antigen.
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| 46. | A large number of labels exist in modern immunoassays, and they allow for detection through different means.
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| 47. | Rosalyn Sussman Yalow and Solomon Berson are credited with the development of the first immunoassays in the 1950s.
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| 48. | Another demonstrated labeless immunoassay involves measuring the change in resistance on an electrode as antigen binds to it.
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| 49. | Cortisol immunoassays on the other hand have been shown to be prone to both over-and underestimation.
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| 50. | One reason for this is that a large amount of serum TK1 identified by immunoassay is not enzymatically active.
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