Use the Potassium Laboratory Test Guide Below to answer the…

Use the Potassium Laboratory Test Guide Below to answer the following Question: Laboratory Test Guide Test Name:  Potassium Specimen Type:  Blood Container:  Green top (Li Heparin tube), preferred  Alternate Tube: red, marble or gold top tube Specimen Processing:  Centrifuge specimen within 1 hour of collection and remove serum/plasma aliquot into a plastic sample container/cup Optimal Volume:  1 mL Minimum Volume:  0.2 mL Transportation/Storage:  Room Temperature Causes for Rejection:   Hemolysis, Lipemia, Bilirubinemia (icterus) Reference Range:  3.5 – 5.2 mmol/L Critical Values:  6.0 mmol/L   You are going to run a Potassium Assay on Blood Samples.  The Potassium Lab Test Guide above states causes for rejection include “hemolysis, lipemia, bilirubinemia”. State 2 other Specimen Quality Markers for Rejection that would cause a specimen to be rejected for this assay–in other words, other than the presence of interferents, why would a specimen be rejected for this assay?  State 2, if more than 2 answers are given then points will be deducted, regardless if they are correct.

You are validating a new assay to detect Influenza virus by…

You are validating a new assay to detect Influenza virus by a rapid antigen test.  You are comparing the results to culture results which is the gold standard and obtain the following results:   Positive for Influenza by Culture Negative for Influenza by Culture Positive for Influenza by rapid antigen test 500 50 Negative for Influenza by rapid antigen test 100 350   What is the Positive Predictive Value (PPV) for the new assay?

You have run a batch of total proteins using a standard line…

You have run a batch of total proteins using a standard line made up of three standards: 3 g/dL, 5 g/dL and 8 g/dL.  The k factor of the standard line obtained is 0.0523.  The absorbance obtained for W896 is 0.510.  What total protein concentration should be reported out for sample W896?