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ASCP MLS| Complete Exam Set With
Questions And Answers 2026
Distinguishing between T lymphs and B lymphs: - correct-answer - T lymphocytes
are larger and have more vacuoles than B lymphocytes.
Define Galactosemia: - correct-answer - Galactosemia is an inherited metabolic
disorder that affects an individual's ability to metabolize the sugar galactose
effectively. Infants affected by galactosemia typically present with symptoms of
lethargy, vomiting, diarrhea, failure to thrive, and jaundice. The presence of
galactose in the urine sample is not picked up by the glucose pad on the urine test
strip, however, the clinitest result is positive since it can detect different sugars in
the urine, including galactose. True lactose intolerance will usually not become
symptomatic in children until they are at least 3 years old (usually after age 7).
Also, lactose intolerance is associated with diarrhea, but not closely associated
with vomiting.
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Distinguishing characteristics of Shigella species: - correct-answer - Shigella
species generally do not usually exhibit motility. Shigella spp. are gram-negative
rods which is known to cause Shigellosis. This is an infectious disease caused by
Shigella which is associated with diarrhea, fever and stomach cramps.
For which determination is the Brilliant cresyl blue used MOST often? - correct-
answer - Reticulocytes
Immature erythrocytes, or reticulocytes, contain nuclear remnants of RNA. To
detect the presence of this RNA, the red cells must be stained while they are still
living, in a process called supravital staining. With supravital staining, the RNA
appears as a reticulum within the red cell.
Multiple ring forms are most frequently seen in which Plasmodium? - correct-
answer - falciparum
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Multiple ring forms are most frequently seen in Plasmodium falciparum. The
trophozoite develops into a schizont made up of multiple ring forms (also known
as merozoites) via schizogony, or asexual replication. The schizont then matures
which causes the rupture of the erythrocytes- releasing merozoites into the
circulation which in turn infect other erythrocytes
Define Acute phase proteins: - correct-answer -
What percentage of dietary iron is normally absorbed daily? - correct-answer - 5%
to 15%
A patient experiences a mild allergic reaction to a transfusion, including urticaria,
erythema (skin redness), and itching. What is the most likely source of the
allergen? - correct-answer - Plasma proteins
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Mild allergic reactions result from a patient's hypersensitivity to soluble allergens
in the plasma of the donor unit. The blood recipient forms antibodies to these
allergens that are bound to IgE on mast cells and cause the release of histamines.
Allergen substances may be drugs or food consumed by the blood donor.
Contact dermatitis is mediated by: - correct-answer - T lymphocytes
Diagnosis of Diabetes: - correct-answer - A random glucose concentration greater
than 200 mg/dL, with classical signs and symptoms of diabetes
A fasting glucose concentration greater than 126 mg/dL on more than one
occasion.
An abnormal oral glucose tolerance test (OGTT), in which the glucose
concentration is greater than 200 mg/dL 2 hours after a standard carbohydrate
load.
ASCP MLS| Complete Exam Set With
Questions And Answers 2026
Distinguishing between T lymphs and B lymphs: - correct-answer - T lymphocytes
are larger and have more vacuoles than B lymphocytes.
Define Galactosemia: - correct-answer - Galactosemia is an inherited metabolic
disorder that affects an individual's ability to metabolize the sugar galactose
effectively. Infants affected by galactosemia typically present with symptoms of
lethargy, vomiting, diarrhea, failure to thrive, and jaundice. The presence of
galactose in the urine sample is not picked up by the glucose pad on the urine test
strip, however, the clinitest result is positive since it can detect different sugars in
the urine, including galactose. True lactose intolerance will usually not become
symptomatic in children until they are at least 3 years old (usually after age 7).
Also, lactose intolerance is associated with diarrhea, but not closely associated
with vomiting.
,2|Page
Distinguishing characteristics of Shigella species: - correct-answer - Shigella
species generally do not usually exhibit motility. Shigella spp. are gram-negative
rods which is known to cause Shigellosis. This is an infectious disease caused by
Shigella which is associated with diarrhea, fever and stomach cramps.
For which determination is the Brilliant cresyl blue used MOST often? - correct-
answer - Reticulocytes
Immature erythrocytes, or reticulocytes, contain nuclear remnants of RNA. To
detect the presence of this RNA, the red cells must be stained while they are still
living, in a process called supravital staining. With supravital staining, the RNA
appears as a reticulum within the red cell.
Multiple ring forms are most frequently seen in which Plasmodium? - correct-
answer - falciparum
,3|Page
Multiple ring forms are most frequently seen in Plasmodium falciparum. The
trophozoite develops into a schizont made up of multiple ring forms (also known
as merozoites) via schizogony, or asexual replication. The schizont then matures
which causes the rupture of the erythrocytes- releasing merozoites into the
circulation which in turn infect other erythrocytes
Define Acute phase proteins: - correct-answer -
What percentage of dietary iron is normally absorbed daily? - correct-answer - 5%
to 15%
A patient experiences a mild allergic reaction to a transfusion, including urticaria,
erythema (skin redness), and itching. What is the most likely source of the
allergen? - correct-answer - Plasma proteins
, 4|Page
Mild allergic reactions result from a patient's hypersensitivity to soluble allergens
in the plasma of the donor unit. The blood recipient forms antibodies to these
allergens that are bound to IgE on mast cells and cause the release of histamines.
Allergen substances may be drugs or food consumed by the blood donor.
Contact dermatitis is mediated by: - correct-answer - T lymphocytes
Diagnosis of Diabetes: - correct-answer - A random glucose concentration greater
than 200 mg/dL, with classical signs and symptoms of diabetes
A fasting glucose concentration greater than 126 mg/dL on more than one
occasion.
An abnormal oral glucose tolerance test (OGTT), in which the glucose
concentration is greater than 200 mg/dL 2 hours after a standard carbohydrate
load.
