ASCP MLS TESTED QUESTIONS AND
COMPLETE SOLUTIONS
◉ Define: Congestive heart failure
Answer: A left ventricular dysfunction resulting from aging,
hypertension, atherosclerosis or muscle damage from an AMI or
repeated AMIs.
◉ Define infarction:
Answer: An area of tissue death that occurs due to lack of oxygen.
◉ Define: Ischemia
Answer: An inadequate blood supply that decreases availability of
oxygen.
◉ Define: Angina
Answer: Chest pain caused by inadequate supply of oxygen to
heart myocardium.
◉ Which of the following antigen groups is closely related to the
ABO antigens on the red cell membrane?
Answer: I and i antigens are related biochemically and spatially to
the ABH and Lewis antigens on the red cell membrane. Anti-I is
usually an autoantibody. It is common as a benign cold
autoagglutinin. Strong anti-I is associated with Mycoplasma
,pneumonia infection, where it may be associated with cold
autoimmune hemolytic anemia. Anti-I is characterized by its
failure to react with cord red cells. Anti-i generally occurs as a cold
reactive IgM antibody in the setting of infectious mononucleosis.
◉ Distinguishing between T lymphs and B lymphs:
Answer: T lymphocytes are larger and have more vacuoles than B
lymphocytes.
◉ Define Galactosemia:
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.
◉ Distinguishing characteristics of Shigella species:
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?
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?
Answer: falciparum
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:
Answer:
◉ What percentage of dietary iron is normally absorbed daily?
Answer: 5% to 15%
COMPLETE SOLUTIONS
◉ Define: Congestive heart failure
Answer: A left ventricular dysfunction resulting from aging,
hypertension, atherosclerosis or muscle damage from an AMI or
repeated AMIs.
◉ Define infarction:
Answer: An area of tissue death that occurs due to lack of oxygen.
◉ Define: Ischemia
Answer: An inadequate blood supply that decreases availability of
oxygen.
◉ Define: Angina
Answer: Chest pain caused by inadequate supply of oxygen to
heart myocardium.
◉ Which of the following antigen groups is closely related to the
ABO antigens on the red cell membrane?
Answer: I and i antigens are related biochemically and spatially to
the ABH and Lewis antigens on the red cell membrane. Anti-I is
usually an autoantibody. It is common as a benign cold
autoagglutinin. Strong anti-I is associated with Mycoplasma
,pneumonia infection, where it may be associated with cold
autoimmune hemolytic anemia. Anti-I is characterized by its
failure to react with cord red cells. Anti-i generally occurs as a cold
reactive IgM antibody in the setting of infectious mononucleosis.
◉ Distinguishing between T lymphs and B lymphs:
Answer: T lymphocytes are larger and have more vacuoles than B
lymphocytes.
◉ Define Galactosemia:
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.
◉ Distinguishing characteristics of Shigella species:
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?
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?
Answer: falciparum
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:
Answer:
◉ What percentage of dietary iron is normally absorbed daily?
Answer: 5% to 15%
