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What agency approves new test methodologies, instruments, and reagents before they are available for purchase by consumers? FDA How often should biological safety hoods be inspected? Annually What is the minimum number of standards required for a standard curve? 3 What is the maximum magnification using a brightfield microscope? 1000X What is the most accurate pipette for reconstituting control material? Glass volumetric pipettes Which unit of measure refers to 10^-3? Milli- What is the calculated cholesterol/HDL ratio given the following results? Cholesterol 225 mg/dL HDL 75 mg/dL 225/75= 3.00 200 microliters of patient serum is diluted with 800 microliters of saline. What is the final dilution? 1:5 What is the calculated LDL cholesterol given the following lipid profile results? Triglycerides 190 mg/dL Cholesterol 225 mg/dL HDL 75 mg/dL LDL = Total cholesterol - HDL - (TG/5) 112 = 225 - 75 - (190/5) How is relative centrifugal force calculated? 1.18 x 10^-5 x r x rpm^2 A chain of custody is required for all of the following: Legal blood alcohol, pre-employment drug screen, and paternity testing A chain of custody is required for all of the following, EXCEPT: Fetal fibronectin What federal legislation regulates most clinical laboratories? Clinical Laboratory Improvement Amendments (CLIA) What is the level of complexity of most testing performed in clinical laboratories? Moderately complex How often does CLIA require clinical laboratories to have inspections? Every 2 years Which laboratories are NOT required to participate in proficiency testing? Laboratories performing waived testing only. Which proficiency testing (PT) results do not meet the CLIA performance criteria? Failed the same analyte in two consecutive PT events Which one of the following is an example of alternate proficiency testing? Split samples sent to another facility using the same test method. All of the following are pre-analytical errors except which one? Transcription error entering a manual result All of the following are pre-analytical erros: Ordering a lab test under the wrong patient number, misidentification of a patient, mislabeling an add-on test Which one of the following is the most common analytical error? Not checking specimen integrity What is the most common post-analytical error? Clerical errors How often must a procedure be reviewed? Annual review is required How often must thermometers be checked against the NIST thermometer? Annually In which manual are the directions for running quality control for a specific assay kept? Operating procedure manual Following equipment maintenance, when is quality control suggested? After any preventative maintenance