MLT ASCP- Exam Questions with Verified Solutions Latest Version 2024-2025
Basophils' primary role involves: - Answers Initiation of allergic inflammation
Myoglobin concentration testing is routinely used for all of the following conditions, EXCEPT? - Answers
Pulmonary edema
FALSE-NEGATIVE results at the indirect antiglobulin phase of an antibody screening test using a tube
method (i.e., not a Gel-method) are usually caused by which of the following? - Answers Inadequate
washing of the red cells
Which of the following probe types is used to detect a translocation? - Answers Break-apart probes
Which Pseudomonas species produces pyocyanin (bright bluish pigment on Mueller-Hinton agar)? -
Answers Pseudomonas aeruginosa
All of the following white blood cells would produce a positive leukocyte esterase test on the urine
chemical reagent strip, EXCEPT? - Answers Lymphocytes
Pernicious anemia refers to cobalamin deficiency that results from a lack of which of the following? -
Answers Intrinsic Factor
T lymphocytes are characterized by all of the following functions EXCEPT which? - Answers Synthesize
antibody
Which malarial parasite is most likely present in a stained blood smear that reveals giant platelets, many
reticulocytes containing Schüffner's dots, large ring forms, and schizonts with 12-24 merozoites? -
Answers Plasmodium vivax
This Plasmodium species has a 72-hour cycle and tends to infect older red cells. Infected red cells will be
normal sized. - Answers Plasmodium malariae
When collecting a specimen for vitamin A, which of the following special precautions needs to be taken?
- Answers Protect the specimen from light
Components of the second line of defense in the human body are: - Answers Phagocytic cells;
complement
Using these values: Mean( )= 0.97 mg/dL; Standard deviation (SD) = .07 mg/dL, what is the "normal
range" for creatinine levels? That is, in what range will 95% of healthy individuals' creatinine levels fall? -
Answers Approximately 95% of healthy people will have creatinine levels in the range ± 2 SD. In other
words, we add 2 SD to the mean to get the largest number of the range and we subtract 2 SD from the
mean to get the smallest number of the range.
In this case, 0.97 mg/dL + 0.14 = 0.83 - 1.11 mg/dL.
, A patient who has a primarily vegetarian diet will most likely have: - Answers A patient who has a
primarily vegetarian diet will most likely have an alkaline urine pH
Which represents peak 1 (closest to the cathode) in this serum protein electrophoresis (SPE) scan? -
Answers Gamma
What is a common difference between paroxysmal cold hemoglobinuria (PCH) and cold hemagglutinin
disease (CHD)? - Answers PCH is caused by an IgG antibody while CHD is usually caused by an IgM
antibody
What condition would be suspected in an asymptomatic patient with greater than 20% atypical
(reactive) lymphocytes on their peripheral blood smear? - Answers Epstein-Barr virus infection
Hymenolepis nana - Answers small "dwarf" size and the tiny scolex as seen under low-power
magnification with a distinctive protruding armed rostellum and a circle of hooklets are key to its
identification.
Which immunoglobulin is associated with anaphylactic shock? - Answers IgE
A technologist performed a STAT spinal fluid count by pipetting undiluted spinal fluid in a Neubauer
Counting Chamber and counting both sides of the chamber (4 large WBC squares on each side). A total
of 54 White Cells were counted. How many White Cells would there be per cubic millimeter? - Answers
WBC = 54 / (8 squares x 0.1 µL) = 67.5/µL
What has happened in an antibody titer, if tubes #5-7 show a stronger reaction than tubes #1-4? -
Answers Prozone reaction
Small, gray, alpha hemolytic colonies with indented centers were isolated on sheep blood agar from a
peritoneal fluid. The following biochemicals were performed:
Gram Stain: Gram positive lancet-shaped cocci in chains and pairs
Catalase: Negative
Optochin susceptibility: Sensitive >14 mm - Answers Streptococcus pneumoniae the organism is catalase
negative, optochin sensitive, and has a Gram stain morphology of Gram positive cocci in chains and
pairs. Streptococcus pneumoniae is a common cause of peritonitis in children and adults.
What is the approximate volume of spinal fluid in an adult? - Answers 90-150 mL
Antibodies directed against granulocyte antigens have been implicated for all of the following EXCEPT? -
Answers Acute hemolytic transfusion reactions
After experiencing extreme fatigue and polyuria, a patient's basic metabolic panel is analyzed in the
laboratory. The result of the glucose is too high for the instrument to read. The laboratorian performs a
dilution using 0.25 mL of patient sample to 750 µL of diluent. The result now reads 325 mg/dL. How
should the technologist report this patient's glucose result? - Answers The correct answer for this
Basophils' primary role involves: - Answers Initiation of allergic inflammation
Myoglobin concentration testing is routinely used for all of the following conditions, EXCEPT? - Answers
Pulmonary edema
FALSE-NEGATIVE results at the indirect antiglobulin phase of an antibody screening test using a tube
method (i.e., not a Gel-method) are usually caused by which of the following? - Answers Inadequate
washing of the red cells
Which of the following probe types is used to detect a translocation? - Answers Break-apart probes
Which Pseudomonas species produces pyocyanin (bright bluish pigment on Mueller-Hinton agar)? -
Answers Pseudomonas aeruginosa
All of the following white blood cells would produce a positive leukocyte esterase test on the urine
chemical reagent strip, EXCEPT? - Answers Lymphocytes
Pernicious anemia refers to cobalamin deficiency that results from a lack of which of the following? -
Answers Intrinsic Factor
T lymphocytes are characterized by all of the following functions EXCEPT which? - Answers Synthesize
antibody
Which malarial parasite is most likely present in a stained blood smear that reveals giant platelets, many
reticulocytes containing Schüffner's dots, large ring forms, and schizonts with 12-24 merozoites? -
Answers Plasmodium vivax
This Plasmodium species has a 72-hour cycle and tends to infect older red cells. Infected red cells will be
normal sized. - Answers Plasmodium malariae
When collecting a specimen for vitamin A, which of the following special precautions needs to be taken?
- Answers Protect the specimen from light
Components of the second line of defense in the human body are: - Answers Phagocytic cells;
complement
Using these values: Mean( )= 0.97 mg/dL; Standard deviation (SD) = .07 mg/dL, what is the "normal
range" for creatinine levels? That is, in what range will 95% of healthy individuals' creatinine levels fall? -
Answers Approximately 95% of healthy people will have creatinine levels in the range ± 2 SD. In other
words, we add 2 SD to the mean to get the largest number of the range and we subtract 2 SD from the
mean to get the smallest number of the range.
In this case, 0.97 mg/dL + 0.14 = 0.83 - 1.11 mg/dL.
, A patient who has a primarily vegetarian diet will most likely have: - Answers A patient who has a
primarily vegetarian diet will most likely have an alkaline urine pH
Which represents peak 1 (closest to the cathode) in this serum protein electrophoresis (SPE) scan? -
Answers Gamma
What is a common difference between paroxysmal cold hemoglobinuria (PCH) and cold hemagglutinin
disease (CHD)? - Answers PCH is caused by an IgG antibody while CHD is usually caused by an IgM
antibody
What condition would be suspected in an asymptomatic patient with greater than 20% atypical
(reactive) lymphocytes on their peripheral blood smear? - Answers Epstein-Barr virus infection
Hymenolepis nana - Answers small "dwarf" size and the tiny scolex as seen under low-power
magnification with a distinctive protruding armed rostellum and a circle of hooklets are key to its
identification.
Which immunoglobulin is associated with anaphylactic shock? - Answers IgE
A technologist performed a STAT spinal fluid count by pipetting undiluted spinal fluid in a Neubauer
Counting Chamber and counting both sides of the chamber (4 large WBC squares on each side). A total
of 54 White Cells were counted. How many White Cells would there be per cubic millimeter? - Answers
WBC = 54 / (8 squares x 0.1 µL) = 67.5/µL
What has happened in an antibody titer, if tubes #5-7 show a stronger reaction than tubes #1-4? -
Answers Prozone reaction
Small, gray, alpha hemolytic colonies with indented centers were isolated on sheep blood agar from a
peritoneal fluid. The following biochemicals were performed:
Gram Stain: Gram positive lancet-shaped cocci in chains and pairs
Catalase: Negative
Optochin susceptibility: Sensitive >14 mm - Answers Streptococcus pneumoniae the organism is catalase
negative, optochin sensitive, and has a Gram stain morphology of Gram positive cocci in chains and
pairs. Streptococcus pneumoniae is a common cause of peritonitis in children and adults.
What is the approximate volume of spinal fluid in an adult? - Answers 90-150 mL
Antibodies directed against granulocyte antigens have been implicated for all of the following EXCEPT? -
Answers Acute hemolytic transfusion reactions
After experiencing extreme fatigue and polyuria, a patient's basic metabolic panel is analyzed in the
laboratory. The result of the glucose is too high for the instrument to read. The laboratorian performs a
dilution using 0.25 mL of patient sample to 750 µL of diluent. The result now reads 325 mg/dL. How
should the technologist report this patient's glucose result? - Answers The correct answer for this
