MLT Practice Quiz
Can you answer the following medical test questions? Test your knowledge on this science quiz to see how you do and compare your score to others.
- 1.
Beer's law states that the darker the color produced, the more light absorbed in the specimen; the more light absorbed, the
- A.
Lower the concentration of the analyte
- B.
Higher the concentration of the analyte
- C.
More light transmitted
- D.
Longer the wavelength required
Correct Answer
B. Higher the concentration of the analyte -
- 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
Correct Answer
A. 5.0N -
- 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
Correct Answer
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
Correct Answer
C. 20 -
- 5.
To make a 1:5 dilution of serum sample, dilute
- 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
Correct Answer
B. 1.0 mL of serum + 4.0 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
Correct Answer
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
Correct Answer
A. Osmometers -
- 8.
Osmolality of a solution is determined by measuring
- A.
Freezing point depression
- B.
Refractive index
- C.
Specific gravity
- D.
Ionic strength
Correct Answer
A. Freezing point depression -
- 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
Correct Answer
B. Alkaline picrate -
- 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
Correct Answer
D. Hyperglycemia and renal tubule malfunction -
- 11.
Unconjugated bilirubin is also known as
- A.
Conjugated bilirubin
- B.
Prehepatic bilirubin
- C.
Total bilirubin
- D.
Biliverdin
Correct Answer
B. Prehepatic bilirubin -
- 12.
Alkaline phosphatase is GREATLY elevated in
- A.
Kidney disease
- B.
Liver disease
- C.
Myocardial infarction
- D.
Obstructive jaundice
Correct Answer
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
Correct Answer
B. 3-hydroxy butyric acid -
- 14.
Blood glucose levels are directly regulated by the hormone
- A.
ACTH
- B.
Insulin
- C.
Thyroxin
- D.
Hydrocortisone
Correct Answer
B. Insulin -
- 15.
Albumin, alpha1, alpha2, beta, and gamma globulin are electrophoretic fractions of
- A.
Hemoglobin
- B.
Amino acid
- C.
Serum protein
- D.
Serum lipoprotein
Correct Answer
C. Serum protein -
- 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
Correct Answer
B. Immunoelectrophoresis -
- 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
Correct Answer
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
Correct Answer
A. Bound to globulin -
- 19.
Sodium is responsible for the maintenance of
- A.
Blood coagulation
- B.
Osmotic pressure of body fluids
- C.
Cardiac muscle contractions
- D.
Salt intake
Correct Answer
B. Osmotic pressure of body fluids -
- 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
Correct Answer
A. The positive pole -
- 21.
The end-product of purine metabolism is
- A.
Urea
- B.
Creatine
- C.
Creatinine
- D.
Uric acid
Correct Answer
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
Correct Answer
C. Shift -
- 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
Correct Answer
C. Stardard 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
Correct Answer
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
Correct Answer
C. 1:20 -
- 26.
An RBC exhibiting hypochromia would be described as being
- A.
Variable in shape
- B.
Packed with hemoglobin
- C.
Markedly bluish in color
- D.
Markedly pale in central color
Correct Answer
D. Markedly pale in central color -
- 27.
When performing automated cell counts, most automated cell counted instruments
- A.
Count nucleated red blood cells with erythrocytes
- B.
Count nucleated red blood cells with platelets
- C.
Count nucleated red blood cells with leukocytes
- D.
Do not count nucleated red blood cells
Correct Answer
C. Count nucleated red blood cells with leukocytes -
- 28.
Supravital staining of red cells with a deficiency of G-6-PD will demonstrate the presence of
- A.
Howell-Jolly bodies
- B.
Rubriblasts
- C.
Heniz bodies
- D.
Plasmodium species
Correct Answer
C. Heniz bodies -
- 29.
The type of anemia usually associated with severe burns is
- A.
Macrocytic
- B.
Aplastic
- C.
Hemolytic
- D.
Microcytic
Correct Answer
C. Hemolytic -
- 30.
The principle involved in some automated blood cell counters is based on the
- A.
Amount of hemoglobin in the red cell
- B.
Size of the particle being counted
- C.
Weight of the hemoglobin in the red cell
- D.
Value of the cell indices
Correct Answer
B. Size of the particle being counted -
- 31.
During the maturation of a blood cell, the nuclear chromatin pattern becomes
- A.
Finer
- B.
More dense
- C.
Less dense
- D.
More acidic
Correct Answer
B. More dense -
- 32.
As a general rule, when a blood cell matures
- A.
The cell increases in size
- B.
The cell decreases in size
- C.
There is no change in the cell's size
- D.
The nucleus increases in size
Correct Answer
B. The cell decreases in size -
- 33.
An elevated leukocyte count with increased numbers of neutrophilic granulocytes USUALLY indicates
- A.
Bacterial infection
- B.
Viral infection
- C.
Infectious mononucleosis
- D.
Allergic reaction
Correct Answer
A. Bacterial infection -
- 34.
Which of the following tests is used to measure capillary fragility?
- A.
Tourniquet
- B.
Bleeding time
- C.
Prothrombin time
- D.
Partial thromboplastin time (PTT)
Correct Answer
A. Tourniquet -
- 35.
On most automated cell counted, background counts are made using
- A.
Distilled water
- B.
Highly-diluted blood
- C.
Diluting fluid
- D.
Lysing reagent only
Correct Answer
C. Diluting fluid -
- 36.
Brilliant cresyl blue or new methylene blue are stains used for counting
- A.
Reticulocytes
- B.
Platelets
- C.
Malaria
- D.
Howell-Jolly bodies
Correct Answer
A. Reticulocytes -
- 37.
Cerebral spinal fluid patients with post-cerebral hemmorrhage appears
- A.
Clear (colorless)
- B.
Bright red
- C.
Light yellow or straw colored
- D.
Greeen
Correct Answer
C. Light yellow or straw colored -
- 38.
The distance between the ruled surface and cover slip of the hemacytometer is
- A.
0.1 cm
- B.
1.0 cm
- C.
0.1 mm
- D.
1.0 mm
Correct Answer
C. 0.1 mm -
- 39.
On an automated blood cell counter, the two parameters affected by a high background count would be
- A.
WBC and Hgb
- B.
RBC and Hgb
- C.
RBC and WBC
- D.
Hct and WBC
Correct Answer
C. RBC and WBC -
- 40.
Leukemia may be suspected when a manual hematocrit determination reveals
- A.
Hemolysis
- B.
Icteric plasma
- C.
A high hematocrit
- D.
A heavy buffy coat
Correct Answer
D. A heavy buffy coat -
- 41.
Hansel's stain is appropriate for
- A.
Circulating eosinophiles
- B.
Phagocytic neutrophils
- C.
Nasal secrection for eosinophiles
- D.
Leukocytes in spinal fluid
Correct Answer
C. Nasal secrection for eosinophiles -
- 42.
Reticulocytes contain
- A.
DNA remnants
- B.
RNA remnants
- C.
Basophilic granules
- D.
Howell-Jolly bodies
Correct Answer
B. RNA remnants -
- 43.
A substance that produces a prolonged prothrombin time when given orally is
- A.
Heparin
- B.
Protamine sulfate
- C.
Saliclate
- D.
Coumadin
Correct Answer
D. Coumadin -
- 44.
The screenign or presumptive test for the osmotic fragility of red cells is normal when hemolysis begins in
- A.
0.50% NaCl
- B.
0.85% NaCl
- C.
0.90% NaCl
- D.
1.34% NaCl
Correct Answer
A. 0.50% NaCl -
- 45.
Clot retraction can be employed as an indicator of
- A.
Factor VII deficiency
- B.
Factor X deficiency
- C.
Hemophilia
- D.
Platelet function
Correct Answer
D. Platelet function -
- 46.
Which stage of the coagulation process would be affected by a deficiency of Factor VIII?
- A.
First
- B.
Second
- C.
Third
- D.
Fourth
Correct Answer
A. First -
- 47.
Fibrinogen determinations are performed on
- A.
Serum only
- B.
Plasma only
- C.
Either serum or plasma
- D.
Any body fluid
Correct Answer
B. Plasma only -
- 48.
In serologic tests for syphulis, reagin reactivity may result from an acute or chronic infection such as
- A.
Pneumonia
- B.
Infectious hepatitis
- C.
Lupus erythematosus
- D.
Helicobacter pylori
Correct Answer
C. Lupus erythematosus -
- 49.
The quantity of inactivated serum used for qualitative VDRL test is
- A.
0.02 mL
- B.
0.05 mL
- C.
0.10 mL
- D.
0.15 mL
Correct Answer
B. 0.05 mL -
- 50.
Which one of the following is characteristic of any antigen?
- A.
High molecular weight
- B.
High order of specificity
- C.
Foreign to animal
- D.
Produced by action of antibody
Correct Answer
B. High order of specificity -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Jun 22, 2018Quiz Edited by
ProProfs Editorial Team -
Jun 22, 2018Quiz Created by
Princesssimar07
Back to top