Medical Laboratory Technician (MLT) Exam Practice Test!

100 Questions | By Redzilla | Last updated: Sep 8, 2020 | Total Attempts: 64391

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Medical Laboratory Technician (MLT) Exam Practice Test!

Medical Laboratory Technician is a person who performs all the microscopic and bacteriological operations such as testing cells, tissues, fluids, human blood, etc. for medical and research purposes, and it's all done a medical technologist. Can you answer the following medical test questions? Test your knowledge on this MLT quiz to see how good you perform and compare your score to others.

Questions and Answers

1.

Beer's law states that the darker the color produced, the more light absorbed in the specimen; the more light absorbed, the

Discuss
- A.
  
  Lower the concentration of the analyte
- B.
  
  Higher the concentration of the analyte
- C.
  
  More light transmitted
- D.
  
  Longer the wavelength required
2.

What is the normality of a solution of sodium hydroxide (molecular weight=40) containing 20 grams in 100 mL of solution?
- A.
  
  5.0N
- B.
  
  1.0N
- C.
  
  0.5N
- D.
  
  0.4N
3.

Carbohydrates are organic compounds of 1. carbon 2. hydrogen 33. oxygen
- A.
  
  1 and 2 only
- B.
  
  1 and 3 only
- C.
  
  2 and 3 only
- D.
  
  1,2, and 3
4.

If test results are within +/-2 standard deviations, the ratio of test results beyond the +/-2 SD limit will be 1 out of
- A.
  
  3
- B.
  
  5
- C.
  
  20
- D.
  
  300
5.

To make a 1:5 dilution of serum sample, dilute

Discuss
- A.
  
  1.0 mL of serum + 5.0 mL of diluent
- B.
  
  1.0 mL of serum + 4.0 mL of diluent
- C.
  
  1.0 mL of serum + 6.0 mL of diluent
- D.
  
  5.0 mL of serum + 1.0 mL of diluent
6.

WHich one of the following is a function of gamma globulin?
- A.
  
  Transports glucose
- B.
  
  Regulates body temperature
- C.
  
  Performs as fibrinogen for blood coagulation
- D.
  
  Provides humoral immunity
7.

Which instruments do NOT measure concentrations of a particular molecule but of the total ions and molecules in general (number of moles per kilogram of water)?
- A.
  
  Osmometers
- B.
  
  Spectrophotometers
- C.
  
  Blood gas analyzers
- D.
  
  Immunochemical analyzers
8.

Osmolality of a solution is determined by measuring
- A.
  
  Freezing point depression
- B.
  
  Refractive index
- C.
  
  Specific gravity
- D.
  
  Ionic strength
9.

Most methods for the determination of blood creatinine are based on the reaction of creatinine and
- A.
  
  Sulfuric acid
- B.
  
  Alkaline picrate
- C.
  
  Acetic anhydride
- D.
  
  Ammonium hydroxide
10.

All of the following influence glomerular filtration EXCEPT
- A.
  
  Decreased renal blood flow and cardiac failure
- B.
  
  Cardiac failure and renal or urinary calculi
- C.
  
  Renal or urinary calculi and decreased renal blood flow
- D.
  
  Hyperglycemia and renal tubule malfunction
11.

Unconjugated bilirubin is also known as
- A.
  
  Conjugated bilirubin
- B.
  
  Prehepatic bilirubin
- C.
  
  Total bilirubin
- D.
  
  Biliverdin
12.

Alkaline phosphatase is GREATLY elevated in
- A.
  
  Kidney disease
- B.
  
  Liver disease
- C.
  
  Myocardial infarction
- D.
  
  Obstructive jaundice
13.

The ketone bodies include acetoacetic acid, acetone, and
- A.
  
  Lactic acid
- B.
  
  3-hydroxy butyric acid
- C.
  
  Oxaloacetic acid
- D.
  
  Acetic acid
14.

Blood glucose levels are directly regulated by the hormone
- A.
  
  ACTH
- B.
  
  Insulin
- C.
  
  Thyroxin
- D.
  
  Hydrocortisone
15.

Albumin, alpha1, alpha2, beta, and gamma globulin are electrophoretic fractions of
- A.
  
  Hemoglobin
- B.
  
  Amino acid
- C.
  
  Serum protein
- D.
  
  Serum lipoprotein
16.

Which one of the following methods could be used to study protein abnormality?
- A.
  
  Isoenzyme electrophoresis
- B.
  
  Immunoelectrophoresis
- C.
  
  Electrophoresis of penicilliamine-treated serum
- D.
  
  Blood viscosity studies
17.

Which of the following enzymes are present in heart muscle? 1. lactic dehydrogenase (LDH) (LD) 2. creatinine phosphokinase (CPK) (CK) 3. serum glutamic oxaloacetic transaminase (SGOT)
- A.
  
  2 only
- B.
  
  1 and 2 only
- C.
  
  2 and 3 only
- D.
  
  1,2, and 3
18.

Most of the plasma thyroxine (T4) is
- A.
  
  Bound to globulin
- B.
  
  Bound to albumin
- C.
  
  Free
- D.
  
  Bound to cholesterol
19.

Sodium is responsible for the maintenance of
- A.
  
  Blood coagulation
- B.
  
  Osmotic pressure of body fluids
- C.
  
  Cardiac muscle contractions
- D.
  
  Salt intake
20.

When using a buffer with a pH of 8.6, each of the serum proteins in an electrical field migrates toward
- A.
  
  The positive pole
- B.
  
  The negative pole
- C.
  
  Either pole
- D.
  
  Both poles
21.

The end-product of purine metabolism is
- A.
  
  Urea
- B.
  
  Creatine
- C.
  
  Creatinine
- D.
  
  Uric acid
22.

When six or more consecutive daily values are distributed on one side of the mean but maintain a constant level, it is known as a
- A.
  
  Normal distribution curve
- B.
  
  Mean deviation curve
- C.
  
  Shift
- D.
  
  Trend
23.

The degree that a procedure deviates from a known value or from a calculated mean value is known as
- A.
  
  Coefficient variation
- B.
  
  Quality control
- C.
  
  Stardard deviation
- D.
  
  Percent deviation
24.

Which one of the following hemoglobin determination methods is recommended by the International Committee for Clinical Laboratory Standards and the National Committee for Clinical Laboratory Standards?
- A.
  
  Oxyhemoglobin
- B.
  
  Sulfhemoglobin
- C.
  
  Methemoglobin
- D.
  
  Cyanmethemoglobin
25.

When using white blood cell pipets for performing a white cell count, blood is diluted
- A.
  
  1:200
- B.
  
  1:50
- C.
  
  1:20
- D.
  
  1:10