Validation of calculated test results performed by a laboratory information system must be performed? 

According to Clinical Laboratory Improvement Amendments (CLIA) regulations, which of the following applies to a test that is easy to perform and interpret?

The ability of a diagnostic test to accurately measure only the analyte of interest in the presence of other substances is the? 

What percentage of red blood cells must be retained when preparing Red Blood Cells Leukocyte Reduced? 

A serum glucose sample is too high to read, so a 1:5 dilution using saline (dilution A) is made.  Dilution A was tested and again is too high to read.  A further 1:2 dilution is made using saline (dilution B).  To calculate the result, the dilution B value must be multiplied by?  

When using a refractometer to measure urine concentration, the laboratorian must correct for which of the following in their calculations? 

Oval fat bodies are? 

A living microbe with reduced virulence that is used for vaccination purposes is considered? 

Antigen recognition by CD4-positive T cells requires:

One of the key morphological features of the nucleated red cell stages is: