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MT(AAB) Generalist Examination: Practice Questions

Number of questions: 600

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About the MT(AAB) Generalist exam

The MT(AAB) Generalist examination is an exam for people wanting to become medical technologists. The exam is set by the AAB (American Association of Bioanalysts).

About these practice questions

These practice questions will help prepare you for the MT(AAB) Generalist exam.

This page contains 600 practice questions divided into the six sections of the exam: 1. Basic Knowledge, 2. Chemistry, 3. Microbiology, 4. Hematology, 5. Immunology, and 6. Immunohematology.

All questions have been carefully designed to mimic the questions on the real exam, to help you prepare and get a passing grade.

Sections

  1. Basic Knowledge
  2. Chemistry
  3. Microbiology
  4. Hematology
  5. Immunology
  6. Immunohematology

Section 1: Basic Knowledge

1.1) How many grams of sodium chloride are needed to make 300 mL of a 2% m/v solution?
  1. 2
  2. 4
  3. 6
  4. 20
Answers are locked. Please click here to buy them. 1.2) A lab technician is preparing a serial dilution with eight tubes. The first tube contains a 1/2 dilution. If the dilution factor doubles with each transfer, what would be the dilution in the eighth tube?
  1. 1/128
  2. 1/256
  3. 1/512
  4. 1/1024
Answers are locked. Please click here to buy them. 1.3) A lab technician adds 0.2 mL of a stock solution to 3.8 mL of diluent. What is the dilution factor?
  1. 4
  2. 5
  3. 19
  4. 20
Answers are locked. Please click here to buy them. 1.4) Which of the following should be included in an employee's personnel file?
  1. Information about the employee's family members
  2. Most recent vacation destination
  3. Performance reviews
  4. Web addresses of the employee's social media profiles
Answers are locked. Please click here to buy them. 1.5) What is the negative log of hydrogen ion concentration known as?
  1. SG
  2. pH
  3. pKa
  4. the T/S constant
Answers are locked. Please click here to buy them. 1.6) Which of these is an example of a zero error?
  1. A blood sample missing a label
  2. A lab technician forgetting a zero when performing a calculation
  3. A thermometer registering 102°C in boiling water instead of 100°C
  4. Scales that give a reading of 1.1 g when nothing is placed on them
Answers are locked. Please click here to buy them. 1.7) Which of these is a post-analytical error?
  1. A hemolyzed specimen
  2. An empty collection tube
  3. Incorrect information on the test request
  4. Results reported in the wrong units
Answers are locked. Please click here to buy them. 1.8) Which of these situations would cause random errors?
  1. A lab assistant who reads the volume of liquids in flasks at a different angle every time
  2. A plastic tape measure that has become slightly stretched over the years
  3. A scale that has been incorrectly calibrated and always gives a value 10 g lighter than the real weight
  4. A thermometer that always reads 2 degrees too high
Answers are locked. Please click here to buy them. 1.9) What is the term for when readings become consistently lower or higher over time?
  1. Calibration
  2. Drift
  3. Offset error
  4. Unpredictability
Answers are locked. Please click here to buy them. 1.10) Which of these is a pre-analytical error?
  1. Calculating test results incorrectly
  2. Interpreting results incorrectly
  3. Mislabeling a blood specimen
  4. Reporting a result on the wrong patient
Answers are locked. Please click here to buy them. 1.11) Random error mainly affects:
  1. accuracy
  2. external validity
  3. internal validity
  4. precision
Answers are locked. Please click here to buy them. 1.12) What kind of chart is a graphical presentation of run-to-run or day-to-day quality control values?
  1. Eadie-Hofstee
  2. Hanes-Woolf
  3. Levey-Jennings
  4. Lineweaver-Burk
Answers are locked. Please click here to buy them. 1.13) Where would you find the instructions for running quality controls for a specific assay?
  1. Laboratory quality manual
  2. Safety data sheet
  3. Safety manual
  4. Standard operating procedure
Answers are locked. Please click here to buy them. 1.14) Which federal agency provides calibration services for thermometers?
  1. American Association for Clinical Chemistry (AACC)
  2. American Clinical Laboratory Association (ACLA)
  3. Department of Energy (DOE)
  4. National Institute of Standards and Technology (NIST)
Answers are locked. Please click here to buy them. 1.15) Which of these best meets the definition of proficiency testing?
  1. Inspections to prevent work-related accidents
  2. Testing for illegal drugs in a biological sample
  3. Tests to ensure workers have the skills and knowledge to perform their jobs
  4. The testing of unknown samples sent to the laboratory
Answers are locked. Please click here to buy them. 1.16) The monitoring of laboratory processes to ensure the accuracy of test results is an aspect of:
  1. corporate compliance
  2. critical thinking
  3. quality assurance
  4. risk management
Answers are locked. Please click here to buy them. 1.17) Which picture demonstrates high precision but low accuracy?
  1. A
  2. B
  3. C
  4. D
Answers are locked. Please click here to buy them. 1.18) If the same thing is measured many times and the measurements are always the same, this means the measurements are:
  1. accurate
  2. reliable
  3. valid
  4. variable
Answers are locked. Please click here to buy them. 1.19) What is the formula for calculating diagnostic sensitivity?
  1. False negatives / (false negatives + true positives)
  2. False positives / (false positives + true negatives)
  3. True negatives / (true negatives + false positives)
  4. True positives / (true positives + false negatives)
Answers are locked. Please click here to buy them.

Section 2: Chemistry

Section 3: Microbiology

Section 4: Hematology

Section 5: Immunology

Section 6: Immunohematology

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