AAB MT Basic Knowledge questions and answrs(latest upate).

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 What is the most common reason for a control value to be outside of 3SD? Random error If one control is outside the 95% confidence limits, then what is the most appropriate remedial action to take initially? Repeat the same control Where should an unopened container of methanol be stored? Flammable safety cabinet After preventative maintenance by field service, which one of the following is recommended? Verification of QC results According to CLIA, who is responsible for specimen processing, test performance, and reporting test results? Testing personnel Which one of the following is NOT a job duty of the testing personnel? Interpretation of highly complex testing All of the following are job duties of testing personnel: Inventory control, equipment maintenance, and accuracy of reported results Which one of the following is not required to be kept in the employee's personnel records? Continuing education documents? All of the following are required to be kept in the employee's personnel records: Job competency training checklist, remedial action documentation, and annual performance appraisal. Which one of the following statements concerning CEUs is false? CEUs are mandated by the College of American Pathologists Who is responsible for monitoring trends for corrected reports in the laboratory? Quality assurance Which federal law requires that the competency of laboratory personnel be documented? CLIA Tracking and trending customer complaints concerning the laboratory is a responsibility of which area? Quality assurance Which federal agency issues regulations to ensure employee safety? Occupational Safety and Health Administration (OSHA) OSHA Hazard Communication Standard requires original container labels to contain all of the following information EXCEPT which one? Emergency telephone number OSHA Hazard Communication Standard requires original container labels to contain all of the following information: Product name, warning label, and manufacturer's name and address Which federal agency requires safety training during new employee orientation and annually thereafter? OSHA Which plan minimizes personnel exposure to hazardous chemicals? Chemical hygiene plan Which bloodborne pathogens are of greatest risk to laboratorians? Hepatitis B and HIV All of the following are components of the OSHA Tuberculosis plan: All employees with patient contact must be fit for respirators, all laboratory employees are required to have PPD skin tests, employees who have had a positive PPD must have an annual chest x-ray exam. All of the following are components of the OSHA Tuberculosis plan EXCEPT: All lab employees are exempt from having fit testing for respirators. When a fire occurs, when should the hospital operator be notified of the fire? After pulling the alarm Which federal agency regulates disposal of biohazardous waste? Environmental protection agency (EPA) Which federal agency regulates facilities that use radioisotopes? Nuclear Regulatory Commission (NRC) Which federal agency regulates the disposal of hazardous chemicals and biohazardous wastes? EPA Which labor law requires an employer to provide reasonable accommodations to a wheechair-bound employee? Americans with Disabilities Act Which federal agency is responsible for enforcing employment discrimination laws? Equal Employment Opportunity Commission (EEOC) Which federal law defines the minimum wage and overtime compensation? Fair Labor Standards Act Which agency is responsible for enforcing equal pay for equal work? Fair Labor Standards Act (FLSA) Title VII, which prohibits discrimination, is part of which labor law? Civil rights act Which federal agency regulates packaging, labeling, and transportation of biological products? Department of Transportation (DOT) Which law required the Department of Health and Human Services to establish standards for protected health information? Health Insurance Portability and Accountability Act (HIPAA) What do the etched rings on the top of a pipette mean? The last drop is to be blown out after the pipette drains. What is the accuracy of a volumetric pipette? 1:1000 What is the term used to describe a 99.95% purified chemical that can be measured directly referred to as? Primary standard What is a solution in which the molecules of solute in the solution are in equilibrium with excess undissolved molecules referred to as? Saturated What is the pH of pure water? 7.0 Which statistical term most specifically describes analytical precision? Coefficient of variation Quality control should be performed and monitored to ensure which one of the following? Reliability What is the term used to describe material with physical and chemical properties closely resembling the test specimen and containing concentrations of the substance being measured? Control A procedure has a 2SD variation from a mean value. How many values from a normal population will 2SD include? 95.45% To produce reliable results, how long should a patient fast before having blood drawn for lipid studies? 12-16 hours How is a 10% bleach solution to disinfect the work area made? 100 mL bleach added to 900 mL water Reactivity is what color diamond using the National Fire Protection Agency code? Yellow What is a substance that minimizes any change in hydrogen ion concentration? Buffer Who are the testing personnel for proficiency samples? Any personnel who perform the test(s) Which type of specimen provides the fastest turnaround time? Whole blood If the mean for BUN is 18.0 and one standard deviation is 0.15, then what is the acceptable range for this control? 17.7-18.3 mg/dL If the mean for BUN is 18.0 and one standard deviation is 0.13, then what is the coefficient of variation? .7% = .13/18.0 The total protein is 7.2 g/dL. The serum protein results are: Albumin 53.0% 3.8 g/dL Alpha1 3.6% 0.3 g/dL Alpha2 11.0% 0.8 g/dL Beta 17.6% 1.2 g/dL Gamma 14.8% 1.1 g/dL What is the A/G ratio? 1.1 = 3.8/(.3+.8+1.2+1.1)