ACE ASCP FINAL EXAM ACTUAL EXAM 2 LATEST VERSIONS 280
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
Nephelometry involves the measurement of
A. Light scatter
B. Atomic absorption
C. Light absorption
D. Light transmission - ANSWER: C. Light absorption
When light strikes a particle in a solution, it can be absorbed, transmitted,
reflected, or scattered. Nephelometry is used to measure the light scattered by
particles in a solution. It is useful for measuring protein levels in fluids, and
antigen-antibody complexes
Most potent activator enzyme is
A. Magnesium
B. Sodium
C. Potassium
D. AOTA - ANSWER: A. Magnesium
Over 300 enzymes require the presence of magnesium ions for their catalytic
action, including all enzymes utilizing or synthesizing ATP, or those that use other
nucleotides to synthesize DNA and RNA
A characteristic morphologic feature in hemoglobin C disease is
A. Macrocytosis
B. Spherocytosis
C. Rouleaux formation
D. Target cells - ANSWER: D. Target cells
Codocytes also known as target cells are RBCs that have the appearance of a
shooting target with a bullseye
Two consecutive values in which they are in the +2SD of the same mean or in the -
2SD of the same mean
A. 2:2s
B. 10:x
C. 1:2s
C. R:4s - ANSWER: 2(2s) is a Westgard multirole that indicates a reject of a run
when 2 consecutive control observations are on the same side of the mean and
exceed either the mean plus 2s or mean minus 2s
Precipitation of ribosomes and RNA
A. Heinz bodies
B. Howell-Jolly bodies
C. Basophilic stippling
D. Auer rods - ANSWER: C. Basophilic stippling
, 1. Fine stippling = polychromatophilia (production of RBCs)
2. Coarse stippling = lead poisoning
Mycobacterium tuberculosis - ANSWER: Mycobacterium tuberculosis is an obligate
pathogenic bacterial species in the family Mycobacteriaceae and the causative
agent of tuberculosis. M. tuberculosis has an unusual, waxy coating on its cell
surface primarily due to the presence of mycolic acid. Cells are curved rod-shaped
and are often seen wrapped together, due to the presence of fatty acids in the cell
wall that stick together. This appearance is referred to as cording, like strands of
cord that make up a rope. M. tuberculosis is characterized I tissue by cadeating
granulomas containing Langhans giant cells, which have a "horseshoe" pattern of
nuclei.
Description of Zygomycetes
A. Septate hyphae with basidiospores
B. Septate hyphae with sporangiospores
C. Aseptate hypae with sporangiospores
D. Aseptate hyphae with basidiospores - ANSWER: C. Aseptate hypae with
sporangiospores
According to AABB standards, Fresh Frozen Plasma (FFP) must be infused within
what period of time following thawing?
A. 24 hours
B. 36 hours
C. 48 hours
D. 72 hours - ANSWER: A. 24 hours
Tropical sprue has the peripheral blood picture of
A. Malaria
B. Thalassemia
C. Megalobalstic anemia
D. IDA - ANSWER: C. Megaloblastic anemia.
Tropical sprue is a malabsorption disease commonly found in tropical regions
marked with abnormal flattening of the villi and inflammation of the lining of the
small intesting. Megaloblasitc anemia is Macrocytic/Normochromis anemiwq
What is used for cleaning surfaces in a laboratory
A. 5% Sodium Hypochlorite
B. 10% Sodium Hypochlorite
C. 15% Sodium Hypochlorite
D. NOTA - ANSWER: B. 10% Sodium Hypochlorite
Sodium hypochlorite (NaqOCL) is a comound that can be effeciey used for water
purification. It is used on a large scale for surface purification, bleaching, odor
removal, and water disinfection
Which of the following disease results from a familial absence of high density
lipoprotein (HDL)
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
Nephelometry involves the measurement of
A. Light scatter
B. Atomic absorption
C. Light absorption
D. Light transmission - ANSWER: C. Light absorption
When light strikes a particle in a solution, it can be absorbed, transmitted,
reflected, or scattered. Nephelometry is used to measure the light scattered by
particles in a solution. It is useful for measuring protein levels in fluids, and
antigen-antibody complexes
Most potent activator enzyme is
A. Magnesium
B. Sodium
C. Potassium
D. AOTA - ANSWER: A. Magnesium
Over 300 enzymes require the presence of magnesium ions for their catalytic
action, including all enzymes utilizing or synthesizing ATP, or those that use other
nucleotides to synthesize DNA and RNA
A characteristic morphologic feature in hemoglobin C disease is
A. Macrocytosis
B. Spherocytosis
C. Rouleaux formation
D. Target cells - ANSWER: D. Target cells
Codocytes also known as target cells are RBCs that have the appearance of a
shooting target with a bullseye
Two consecutive values in which they are in the +2SD of the same mean or in the -
2SD of the same mean
A. 2:2s
B. 10:x
C. 1:2s
C. R:4s - ANSWER: 2(2s) is a Westgard multirole that indicates a reject of a run
when 2 consecutive control observations are on the same side of the mean and
exceed either the mean plus 2s or mean minus 2s
Precipitation of ribosomes and RNA
A. Heinz bodies
B. Howell-Jolly bodies
C. Basophilic stippling
D. Auer rods - ANSWER: C. Basophilic stippling
, 1. Fine stippling = polychromatophilia (production of RBCs)
2. Coarse stippling = lead poisoning
Mycobacterium tuberculosis - ANSWER: Mycobacterium tuberculosis is an obligate
pathogenic bacterial species in the family Mycobacteriaceae and the causative
agent of tuberculosis. M. tuberculosis has an unusual, waxy coating on its cell
surface primarily due to the presence of mycolic acid. Cells are curved rod-shaped
and are often seen wrapped together, due to the presence of fatty acids in the cell
wall that stick together. This appearance is referred to as cording, like strands of
cord that make up a rope. M. tuberculosis is characterized I tissue by cadeating
granulomas containing Langhans giant cells, which have a "horseshoe" pattern of
nuclei.
Description of Zygomycetes
A. Septate hyphae with basidiospores
B. Septate hyphae with sporangiospores
C. Aseptate hypae with sporangiospores
D. Aseptate hyphae with basidiospores - ANSWER: C. Aseptate hypae with
sporangiospores
According to AABB standards, Fresh Frozen Plasma (FFP) must be infused within
what period of time following thawing?
A. 24 hours
B. 36 hours
C. 48 hours
D. 72 hours - ANSWER: A. 24 hours
Tropical sprue has the peripheral blood picture of
A. Malaria
B. Thalassemia
C. Megalobalstic anemia
D. IDA - ANSWER: C. Megaloblastic anemia.
Tropical sprue is a malabsorption disease commonly found in tropical regions
marked with abnormal flattening of the villi and inflammation of the lining of the
small intesting. Megaloblasitc anemia is Macrocytic/Normochromis anemiwq
What is used for cleaning surfaces in a laboratory
A. 5% Sodium Hypochlorite
B. 10% Sodium Hypochlorite
C. 15% Sodium Hypochlorite
D. NOTA - ANSWER: B. 10% Sodium Hypochlorite
Sodium hypochlorite (NaqOCL) is a comound that can be effeciey used for water
purification. It is used on a large scale for surface purification, bleaching, odor
removal, and water disinfection
Which of the following disease results from a familial absence of high density
lipoprotein (HDL)
