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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) 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. 1.8) 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. 1.9) A test gives the following control values.
Day 1 2 3 4
Result (U/L) 1.2 1.5 1.8 2.1
What do these control values demonstrate?
  1. A repeating pattern
  2. A trend
  3. An outlier
  4. Random variation
Answers are locked. Please click here to buy them. 1.10) What does the symbol μ represent in measurements?
  1. 10⁹
  2. 10⁻³
  3. 10⁻⁶
  4. 10⁻⁹
Answers are locked. Please click here to buy them. 1.11) What are cubic decimeters more commonly known as?
  1. Grams
  2. Liters
  3. Meters cubed
  4. Moles
Answers are locked. Please click here to buy them. 1.12) What is 100°C in Fahrenheit?
  1. 45°F
  2. 78°F
  3. 157°F
  4. 212°F
Answers are locked. Please click here to buy them. 1.13) What is 0 Kelvin in Celsius?
  1. –273.15°C
  2. –138.45°C
  3. 138.45°C
  4. 273.15°C
Answers are locked. Please click here to buy them. 1.14) What is 0°C in Kelvin?
  1. 173.90 K
  2. 273.15 K
  3. 387.90 K
  4. 461.15 K
Answers are locked. Please click here to buy them. 1.15) What is the following graph shape?
  1. Normal distribution
  2. Polynomial function
  3. Quadratic chart
  4. Reciprocal graph
Answers are locked. Please click here to buy them. 1.16) Which term describes this graph?
  1. Constant
  2. Exponential
  3. Linear
  4. Quadratic
Answers are locked. Please click here to buy them. 1.17) Which acceptable range do laboratories typically use for quality control results?
  1. One standard deviation from the mean
  2. Two standard deviations from the mean
  3. The middle 68% of the results
  4. The outer 5% of the results
Answers are locked. Please click here to buy them. 1.18) What is the mean of 1, 10, 20, 50, 50, 80, 90 and 99?
  1. 45
  2. 50
  3. 55
  4. 60
Answers are locked. Please click here to buy them. 1.19) What are "insidious" hazards?
  1. Hazards that are easily overlooked
  2. Hazards that happen slowly
  3. Hazards that involve chemicals
  4. Hazards that involve fumes
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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