When reacting acetic anhydride with salicylic acid, which expression best reflects the way to calculate the theoretical yield of aspirin in g?

Describe the action necessary for the 5th run of QC data for Hemoglobin controls: Mean Level I Hemoglobin = 5.7 g/dLStandard deviation = .6 Mean Level II Hemoglobin = 12.8 g/dLStandard Deviation = .4 Run (consecutive) Hemoglobin Level I control Hemoglobin Level II control 1 6.3 12.3 2 6.7 12.1 3 5.4 13.0 4 4.4 11.9 5 4.2 12.3 6 5.9 12.8 7 5.8 12.0 8 4.9 12.7

Which of the following is required in a CAP accreditation, but not required as part of CLIA regulations? 

Explain the difference between calibrating an instrument and running controls on an instrument.  (2 points)

What is the % CV for a set of data with a standard deviation of 0.22 and mean of 1.75?

When a test has high diagnostic sensitivity,  it is a good screening test because there are very few false negative results and thus, will indicate, through a positive result, that the person has the disease or more testing is necessary to rule disease out.

Ensuring the reliability of all steps of a laboratory analytic procedure requires that:

Discuss why it is important to separate cells from serum as soon as possible.  (1 point)

Explain why hemolysis will affect test results?  Name two tests which are altered by hemolysis. (3 points)

When you have a normal Gaussian distribution, the mean, median and mode are equal.