If a physician requests a creatinine clearance on an individual, what is the physician attempting to determine?

For this question, please match the analyte to the correct reference range.  

As a MLT, what is your course of action in the scenario on Question 55?

Which one of the following analytes shows no difference in composition between a serum and a plasma specimen?

A hospitalized patient in the ICU has cirrhosis. After a period of time, the heart and kidneys begin to fail and the patient develops edema. What type of electrolyte disorder would develop from this situation?

Which method of analysis will provide the most accurate electrolyte results if a grossly lipemic sample is used?

In this heterogeneous assay, one of the reaction components is attached to the surface of a solid phase. An aliquot of patient sample containing the analyte of interest is added, a wash step occurs, and an enzyme-labeled antibody different from the bound antibody is added followed by the substrate. This type of assay is called:

A tumor of plasmacytoid cells that is diagnosed as Waldenström macroglobulinemia produces a paraprotein that is an:

1,25(OH)2D, also known as 1,25-dihydroxy vitamin D, is the best blood test for determining adequacy of Vitamin D stores in the body.

The set of results that most accurately reflects severe renal disease is: