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AMT MLS Certification Exam: Practice questions

Number of questions: 500

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About the AMT MLS exam

The AMT MLS (Medical Laboratory Scientist) certification exam is set by the American Medical Technologists (AMT). Passing the exam proves to employers that you can work in a laboratory as a medical laboratory scientist.

The exam contains 210 questions and lasts 3.5 hours. All questions are multiple-choice.

About these practice questions

These practice questions will help prepare you for the AMT MLS exam.

This page contains 500 practice questions divided into the nine sections of the exam: 1. General Laboratory, 2. Chemistry, 3. Hematology, 4. Coagulation and Hemostasis, 5. Immunology and Serology, 6. Immunohematology, 7. Blood Banking and Transfusion Services, 8. Microbiology, and 9. Urinalysis and Body Fluids.

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. General Laboratory
  2. Chemistry
  3. Hematology
  4. Coagulation and Hemostasis
  5. Immunology and Serology
  6. Immunohematology
  7. Blood Banking and Transfusion Services
  8. Microbiology
  9. Urinalysis and Body Fluids

Section 1: General Laboratory

1.1) What is the first step in performing a blood draw?
  1. Apply the tourniquet
  2. Clean the site
  3. Identify the patient
  4. Insert the needle
Answers are locked. Please click here to buy them. 1.2) In venipuncture, which of these actions may cause a hematoma?
  1. Applying pressure to the puncture site after removing the needle
  2. Asking the patient to form a fist so the veins are more prominent
  3. Inserting the needle through the vein and puncturing the opposite wall
  4. Removing the tourniquet before the needle is removed
Answers are locked. Please click here to buy them. 1.3) What may occur if the plunger is pulled back too quickly when collecting blood with a syringe?
  1. A needle stick injury
  2. Adulteration of the specimen
  3. Bacterial contamination
  4. Hemolysis of the specimen
Answers are locked. Please click here to buy them. 1.4) What is the angle of insertion for venipuncture?
  1. 15−30 degrees
  2. 30−45 degrees
  3. 45−60 degrees
  4. 60−75 degrees
Answers are locked. Please click here to buy them. 1.5) A phlebotomist has to collect a lavender top tube, green top tube, and light blue top tube from a patient. In which order should the phlebotomist fill the tubes?
  1. Green, lavender, light blue
  2. Green, light blue, lavender
  3. Lavender, green, light blue
  4. Light blue, green, lavender
Answers are locked. Please click here to buy them. 1.6) Which of these analytes is photosensitive?
  1. Albumin
  2. Bilirubin
  3. Iron
  4. Phosphate
Answers are locked. Please click here to buy them. 1.7) What does 5% w/v mean?
  1. 5 grams of solute dissolved in 100 mL of solution
  2. 5 grams of solute dissolved in 100 mL of solvent
  3. 5 mL of solute dissolved in 100 mL of solution
  4. 5 mL of solute dissolved in 100 mL of solvent
Answers are locked. Please click here to buy them. 1.8) How do you calculate the mass of a solute in a solution?
  1. Concentration × volume
  2. Volume + concentration
  3. Volume − concentration
  4. Volume/concentration
Answers are locked. Please click here to buy them. 1.9) When blood is anticoagulated and centrifuged, what is the resulting straw-colored liquid layer called?
  1. Heparin
  2. Plasma
  3. Serum
  4. Whole blood
Answers are locked. Please click here to buy them. 1.10) Which microorganism would be handled in a biosafety level 3 laboratory?
  1. Bacillus subtilis
  2. Escherichia coli
  3. Mycobacterium tuberculosis
  4. Staphylococcus aureus
Answers are locked. Please click here to buy them. 1.11) How long does blood in a red-top tube take to clot?
  1. 10–15 seconds
  2. 25–30 seconds
  3. 5–10 minutes
  4. 30–60 minutes
Answers are locked. Please click here to buy them. 1.12) Which test is used to monitor warfarin therapy?
  1. Erythrocyte sedimentation rate
  2. Hemoglobin
  3. International normalized ratio
  4. Partial thromboplastin time
Answers are locked. Please click here to buy them. 1.13) Which phase of the PDCA cycle involves carrying out a small experiment to test the hypothesis?
  1. Plan
  2. Do
  3. Check
  4. Act
Answers are locked. Please click here to buy them. 1.14) TQM stands for __________ quality management.
  1. targeted
  2. technical
  3. total
  4. traditional
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) What is precision?
  1. The closeness of a result to the first standard deviation
  2. The closeness of a result to the median value
  3. The closeness of a result to the true value
  4. The repeatability of a procedure
Answers are locked. Please click here to buy them. 1.17) Which term means the extent to which measurements agree with the true value?
  1. Accuracy
  2. Precision
  3. Reliability
  4. Reproducibility
Answers are locked. Please click here to buy them. 1.18) What is the term for when a control chart shows seven consecutive points on the same side of the mean?
  1. Cycle
  2. Outlier
  3. Shift
  4. Trend
Answers are locked. Please click here to buy them. 1.19) What are Levey-Jennings charts used for?
  1. Determining how well a laboratory test is working
  2. Logging the daily calibration of laboratory instruments
  3. Summarizing monthly performance statistics
  4. Tracking the expiration dates of test reagents
Answers are locked. Please click here to buy them.

Section 2: Chemistry

Section 3: Hematology

Section 4: Coagulation and Hemostasis

Section 5: Immunology and Serology

Section 6: Immunohematology

Section 7: Blood Banking and Transfusion Services

Section 8: Microbiology

Section 9: Urinalysis and Body Fluids

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