CSMLS PRACTICE EXAM QUESTIONS
WITH CORRECT ANSWERS
Which is the detector of choice for nephelometers?
Select one:
a. diode array
b. photomultiplier tube
c. gas photodiode
d. LED - Correct Answers -b
Which statement regarding turbidimetry is NOT correct?
Select one:
a. light scattered by solutes in the solution at 180° from the incident light is measured by
a photon detector
b. the measurement of light is made at right angles to the incident light
c. scattered light is directly proportional to the number of particles in solution
d. measures the amount of incident light blocked by particles - Correct Answers -b
What is the effect on the colligative properties when you increase the number of
particles in the solution?
Select one:
a. Increases the boiling point, increases the freezing point
b. Increases the boiling point, increases the vapor pressure
c. Decreases the boiling point, increases the freezing point,
d. Decreases the freezing point, decreases the vapor pressure - Correct Answers -d
- increase boiling point
- decrease freezing point
- decrease vapor pressure
- increase osmotic pressure
What is the definition of retention factor (Rf) in thin layer chromatography?
Select one:
a. Ratio of distance moved by the unknown solute to distance moved by the solvent in
the mobile phase
b. Rate of movement of the mobile phase through adsorbant compared with standards
and controls
c. Measurement in centimeters of the distance the solute moved in the mobile phase
from the point of application
d. Distance moved by the mobile phase front from the point of application compared
with a control - Correct Answers -a
,What is quenching?
Select one:
a. a type of resonant fluorescence
b. an analytical procedure for determining fluorescent compounds.
c. the loss of fluorescent intensity which produces falsely decreased patient results.
d. the loss of fluorescent intensity which produces falsely increased patient results. -
Correct Answers -c
What will cause false values when using nephelometric analysis?
Select one:
a. absorption by a closely related atomic species
b. excess analyte in the antigen/antibody reaction
c. hemolyzed sample
d. too much fluorophore in the analyte/fluorescing compound mixture - Correct Answers
-b
What measurement describes a current flow between two non-polarized electrodes with
a known electrical potential?
Select one:
a. amperometry
b. conductometry
c. coulometry
d. potentiometry - Correct Answers -b
What does aldosterone secretion lead to?
Select one:
a. hypotension
b. increased ECF (extracellular fluid) volume
c. increased serum potassium
d. none of the above - Correct Answers -b
Which of these factors DO NOT influence the rate of an enzyme reaction?
Select one:
a. enzyme concentration
b. substrate concentration
c. cofactors
d. nomenclature - Correct Answers -d
Which statement regarding serum urea is correct?
Select one:
a. is elevated in prerenal and renal failure
b. it is not reabsorbed by the renal tubules
c. high levels can result from necrotic liver disease
d. levels are independent of diet - Correct Answers -a
,Which of the following dyes is the most specific for the measurement of albumin?
Select one:
a. tetrabromosulfophthalein
b. bromcresol green
c. bromcresol purple
d. tetrabromphenol blue - Correct Answers -c
Which of the following lipid results would be expected to be falsely elevated on a serum
specimen from a non-fasting patient?
Select one:
a. Cholesterol
b. HDL
c. LDL
d. Triglyceride - Correct Answers -d
What is the major consequence of acetaminophen poisoning?
Select one:
a. Seizures
b. Hyperventilation
c. Hepatocystic necrosis
d. Renal failure - Correct Answers -c
What is the most common method to measure hormone levels in the blood?
Select one:
a. electrophoresis
b. immunoassays
c. photometry
d. gas chromatography - Correct Answers -b
Question text
You are examining a protein electrophoresis pattern and notice an unusual band at the
starting point of the electropherogram that is not present in the normal control. If the
patient was healthy, what is the most likely cause of the unusual banding pattern?
Select one:
a. a plasma sample was probably applied instead of serum
b. the buffer used was the wrong pH
c. an inappropriate support medium was used
d. the patient likely has a genetic abnormality - Correct Answers -d
How would hemolysis affect the banding pattern of serum protein electrophoresis?
Select one:
a. Increased α1 globulin band
b. Increased β globulin band
c. Increased γ globulin band
d. No effect - Correct Answers -b
, How far from the hazard should an emergency eyewash be located?
Select one:
a. Within 10 feet
b. Within 10 seconds walking distance
c. Within 30 feet
d. Within 30 seconds walking distance - Correct Answers -b
A Medical Laboratory Technologist from the RAH Laboratory is part of a team traveling
to the North Thunder Bay Laboratory to assess if that laboratory is adhering to the set
standards for laboratory services. This MLT is taking part in which one of the following
processes?
Select one:
a. Risk Management
b. Quality Improvement
c. Empowerment
d. Accreditation - Correct Answers -d
Random errors are frequently caused by:
Select one:
a. attention to the timing of a reaction
b. changing over to a new lot of reagent
c. inaccurate specimen identification
d. storing specimens at the correct temperature - Correct Answers -c
Westgard rules:
Select one:
a. Require a large amount of time to maintain
b. Are a good visual representation of precision
c. Distinguish between random and systematic error
d. Predict errors - Correct Answers -c
The Medical Laboratory Technologists working in Microbiology have been given the
assignment of designing a quick reference guide for their laboratory to distribute to other
departments in the hospital. Which one of the following terms, best describes this
assignment?
Select one:
a. Management
b. Empowerment
c. Quality Control
d. Accreditation - Correct Answers -b (authority or power given to someone to do
something)
What is caused by a tourniquet being left on too long?
Select one:
a. hemoconcentration
b. hemodilution
WITH CORRECT ANSWERS
Which is the detector of choice for nephelometers?
Select one:
a. diode array
b. photomultiplier tube
c. gas photodiode
d. LED - Correct Answers -b
Which statement regarding turbidimetry is NOT correct?
Select one:
a. light scattered by solutes in the solution at 180° from the incident light is measured by
a photon detector
b. the measurement of light is made at right angles to the incident light
c. scattered light is directly proportional to the number of particles in solution
d. measures the amount of incident light blocked by particles - Correct Answers -b
What is the effect on the colligative properties when you increase the number of
particles in the solution?
Select one:
a. Increases the boiling point, increases the freezing point
b. Increases the boiling point, increases the vapor pressure
c. Decreases the boiling point, increases the freezing point,
d. Decreases the freezing point, decreases the vapor pressure - Correct Answers -d
- increase boiling point
- decrease freezing point
- decrease vapor pressure
- increase osmotic pressure
What is the definition of retention factor (Rf) in thin layer chromatography?
Select one:
a. Ratio of distance moved by the unknown solute to distance moved by the solvent in
the mobile phase
b. Rate of movement of the mobile phase through adsorbant compared with standards
and controls
c. Measurement in centimeters of the distance the solute moved in the mobile phase
from the point of application
d. Distance moved by the mobile phase front from the point of application compared
with a control - Correct Answers -a
,What is quenching?
Select one:
a. a type of resonant fluorescence
b. an analytical procedure for determining fluorescent compounds.
c. the loss of fluorescent intensity which produces falsely decreased patient results.
d. the loss of fluorescent intensity which produces falsely increased patient results. -
Correct Answers -c
What will cause false values when using nephelometric analysis?
Select one:
a. absorption by a closely related atomic species
b. excess analyte in the antigen/antibody reaction
c. hemolyzed sample
d. too much fluorophore in the analyte/fluorescing compound mixture - Correct Answers
-b
What measurement describes a current flow between two non-polarized electrodes with
a known electrical potential?
Select one:
a. amperometry
b. conductometry
c. coulometry
d. potentiometry - Correct Answers -b
What does aldosterone secretion lead to?
Select one:
a. hypotension
b. increased ECF (extracellular fluid) volume
c. increased serum potassium
d. none of the above - Correct Answers -b
Which of these factors DO NOT influence the rate of an enzyme reaction?
Select one:
a. enzyme concentration
b. substrate concentration
c. cofactors
d. nomenclature - Correct Answers -d
Which statement regarding serum urea is correct?
Select one:
a. is elevated in prerenal and renal failure
b. it is not reabsorbed by the renal tubules
c. high levels can result from necrotic liver disease
d. levels are independent of diet - Correct Answers -a
,Which of the following dyes is the most specific for the measurement of albumin?
Select one:
a. tetrabromosulfophthalein
b. bromcresol green
c. bromcresol purple
d. tetrabromphenol blue - Correct Answers -c
Which of the following lipid results would be expected to be falsely elevated on a serum
specimen from a non-fasting patient?
Select one:
a. Cholesterol
b. HDL
c. LDL
d. Triglyceride - Correct Answers -d
What is the major consequence of acetaminophen poisoning?
Select one:
a. Seizures
b. Hyperventilation
c. Hepatocystic necrosis
d. Renal failure - Correct Answers -c
What is the most common method to measure hormone levels in the blood?
Select one:
a. electrophoresis
b. immunoassays
c. photometry
d. gas chromatography - Correct Answers -b
Question text
You are examining a protein electrophoresis pattern and notice an unusual band at the
starting point of the electropherogram that is not present in the normal control. If the
patient was healthy, what is the most likely cause of the unusual banding pattern?
Select one:
a. a plasma sample was probably applied instead of serum
b. the buffer used was the wrong pH
c. an inappropriate support medium was used
d. the patient likely has a genetic abnormality - Correct Answers -d
How would hemolysis affect the banding pattern of serum protein electrophoresis?
Select one:
a. Increased α1 globulin band
b. Increased β globulin band
c. Increased γ globulin band
d. No effect - Correct Answers -b
, How far from the hazard should an emergency eyewash be located?
Select one:
a. Within 10 feet
b. Within 10 seconds walking distance
c. Within 30 feet
d. Within 30 seconds walking distance - Correct Answers -b
A Medical Laboratory Technologist from the RAH Laboratory is part of a team traveling
to the North Thunder Bay Laboratory to assess if that laboratory is adhering to the set
standards for laboratory services. This MLT is taking part in which one of the following
processes?
Select one:
a. Risk Management
b. Quality Improvement
c. Empowerment
d. Accreditation - Correct Answers -d
Random errors are frequently caused by:
Select one:
a. attention to the timing of a reaction
b. changing over to a new lot of reagent
c. inaccurate specimen identification
d. storing specimens at the correct temperature - Correct Answers -c
Westgard rules:
Select one:
a. Require a large amount of time to maintain
b. Are a good visual representation of precision
c. Distinguish between random and systematic error
d. Predict errors - Correct Answers -c
The Medical Laboratory Technologists working in Microbiology have been given the
assignment of designing a quick reference guide for their laboratory to distribute to other
departments in the hospital. Which one of the following terms, best describes this
assignment?
Select one:
a. Management
b. Empowerment
c. Quality Control
d. Accreditation - Correct Answers -b (authority or power given to someone to do
something)
What is caused by a tourniquet being left on too long?
Select one:
a. hemoconcentration
b. hemodilution
