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Optimal Utilization of Laboratory Testing



Obsolete Tests: Laboratory Directors' Opinions7

Slide 18

November 2011

Here's an example of obsolete tests. These are from the American Association of Clinical Chemistry, Clinical Laboratory News, in December of 2007. These are the laboratory directors' opinions. Notice that almost all will agree the LE cell test and the Schilling test are obsolete—65 and 61%, followed by the Free T4 index, prostatic acid phosphatase and Bence Jones Proteins. Notice also though, farther down this graph, you will see some even say that total amylase, AST and total phenytoin are all obsolete.

Obsolete Tests

 


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