AAB MT Basic Knowledge Questions With Complete Solution

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