MLS ASCP Certification Test Questions Solved 100%
2024
What feature is most often found with patients with a splenectomy on a Wright's
stained blood smear? - ANSWERHowell-Jolly bodies
Patients with antibody to the following antigen are immune to Hepatitis B: -
ANSWERSurface antigen (HbSAg)
Which two of the following tests are helpful for documenting previous Streptococcal
throat and skin infections: - ANSWERASO titer and Anti-DNase B
In mass spectrometry, the "appearance potential" is defined as the: -
ANSWERMinimum energy required for the appearance of a particular fragment ion
in mass spectrum
What is generally accepted as the lower threshold value for semen pH from fertile
males? - ANSWER7.2
Coulometry: - ANSWERAn automated method for measuring chloride which
generates silver ions in the reaction
Erythroleukemia: - ANSWERAlso known as Acute Myelogenous Leukemia type M6.
This type is associated with either the presence of both erythroid and myeloid
precursors OR strictly erythroid precursors.
Myelomonocytic leukemia - ANSWERIs associated with an increase in myeloid and
monocytic cell precursors, but not red blood cell precursors
Species that are Lysine (+), arginine (=) and ornithine (+): - ANSWEREnterobacter
aerogenes, Edwardsiella species and most Serratia species
Lysine reaction for all Citrobacter: - ANSWERNegative
Key identifying characteristic for Pantoa (Enterobacter) agglomerans: -
ANSWERnegative reactions for the three decarboxylases commonly tested ( Lysine,
arginine and ornithine)
Which organism is MOST likely responsible for septic reactions associated with Red
Blood Cell transfusions? - ANSWERYersina entercolitica is most likely responsible for
septic reactions in transfusions of Red Blood Cells. This organism is usually acquired
by ingestion of contaminated food and causes mild symptoms of abdominal pain and
diarrhea. Growth of Y. entercolitica is enhanced in iron-rich environments such as
red cell components.
, Gaucher's disease - ANSWERThe most common lysosomal storage disease caused by
insufficient activity of the lysosomal enzyme glucocerebrosidase that leads to the
deposition of glucocerebroside in cells of the macrophage-monocyte system.
Diseases associated with dysfunctions of polymorphonuclear neutrophils (PMNs) -
ANSWERChediak-Higashi syndrome (CH), Chronic granulomatous disease (CGD),
Myeloperoxidase deficiency (MPO)
Nephrotic Syndrome: - ANSWERCaused by damage to the kidneys, especially the
basement membrane of the glomerulus; which causes abnormal excretion of protein
and red blood cells in the urine. Fats are also present in the urine in most cases. A
foamy appearance of the urine is a key characteristic of this condition.
Clinical symptoms include:
Swelling
Weight gain from fluid retention
Poor appetite
High blood pressure
Key Biochemical reactions for Enterobacteriaceae: - ANSWERThe key biochemical
reactions by which the family Enterobacteriaceae can be identified include
fermentation of carbohydrates, reduction of nitrates to nitrites and the absence of
cytochrome oxidase activity.
ANA - ANSWERSee 2 quiz #27
Prozone effect: - ANSWERResults in a false positive reaction; is the result of antibody
excess and dilution of antibody can help prevent its occurrence
Purpose of a bi-chromatic analyzer with dual wavelengths is: - ANSWERMinimize the
effect of interference
Key characteristics of Micrococcus: - ANSWERSusceptible to bacitracin ("A") and
resistant to furazolidone; gram positive cocci in tetras, bacteria cells of micrococcus
luteus are larger than those of the staphylococci and can arrange in tetras
What is the glomerular filtration rate for a patient with a serum creatinine of 2
mg/dL, if the urine creatinine was 124 mg/dL and the urine volume was 2.2 L/24 hrs?
- ANSWER95 mL/min
One method of calculating a glomerular filtration rate is using creatinine and urine
volume to determine creatinine clearance. The equation is as follows:
Creatinine Clearance = (urine creatinine X urine flow rate) / plasma creatinine; where
urine flow rate = volume in mL /24 hours x h/60 min)
In this case = creatinine clearance = 124 X (2200/24 x hour/60) / 2 = 94.7 or 95
ml/min
2024
What feature is most often found with patients with a splenectomy on a Wright's
stained blood smear? - ANSWERHowell-Jolly bodies
Patients with antibody to the following antigen are immune to Hepatitis B: -
ANSWERSurface antigen (HbSAg)
Which two of the following tests are helpful for documenting previous Streptococcal
throat and skin infections: - ANSWERASO titer and Anti-DNase B
In mass spectrometry, the "appearance potential" is defined as the: -
ANSWERMinimum energy required for the appearance of a particular fragment ion
in mass spectrum
What is generally accepted as the lower threshold value for semen pH from fertile
males? - ANSWER7.2
Coulometry: - ANSWERAn automated method for measuring chloride which
generates silver ions in the reaction
Erythroleukemia: - ANSWERAlso known as Acute Myelogenous Leukemia type M6.
This type is associated with either the presence of both erythroid and myeloid
precursors OR strictly erythroid precursors.
Myelomonocytic leukemia - ANSWERIs associated with an increase in myeloid and
monocytic cell precursors, but not red blood cell precursors
Species that are Lysine (+), arginine (=) and ornithine (+): - ANSWEREnterobacter
aerogenes, Edwardsiella species and most Serratia species
Lysine reaction for all Citrobacter: - ANSWERNegative
Key identifying characteristic for Pantoa (Enterobacter) agglomerans: -
ANSWERnegative reactions for the three decarboxylases commonly tested ( Lysine,
arginine and ornithine)
Which organism is MOST likely responsible for septic reactions associated with Red
Blood Cell transfusions? - ANSWERYersina entercolitica is most likely responsible for
septic reactions in transfusions of Red Blood Cells. This organism is usually acquired
by ingestion of contaminated food and causes mild symptoms of abdominal pain and
diarrhea. Growth of Y. entercolitica is enhanced in iron-rich environments such as
red cell components.
, Gaucher's disease - ANSWERThe most common lysosomal storage disease caused by
insufficient activity of the lysosomal enzyme glucocerebrosidase that leads to the
deposition of glucocerebroside in cells of the macrophage-monocyte system.
Diseases associated with dysfunctions of polymorphonuclear neutrophils (PMNs) -
ANSWERChediak-Higashi syndrome (CH), Chronic granulomatous disease (CGD),
Myeloperoxidase deficiency (MPO)
Nephrotic Syndrome: - ANSWERCaused by damage to the kidneys, especially the
basement membrane of the glomerulus; which causes abnormal excretion of protein
and red blood cells in the urine. Fats are also present in the urine in most cases. A
foamy appearance of the urine is a key characteristic of this condition.
Clinical symptoms include:
Swelling
Weight gain from fluid retention
Poor appetite
High blood pressure
Key Biochemical reactions for Enterobacteriaceae: - ANSWERThe key biochemical
reactions by which the family Enterobacteriaceae can be identified include
fermentation of carbohydrates, reduction of nitrates to nitrites and the absence of
cytochrome oxidase activity.
ANA - ANSWERSee 2 quiz #27
Prozone effect: - ANSWERResults in a false positive reaction; is the result of antibody
excess and dilution of antibody can help prevent its occurrence
Purpose of a bi-chromatic analyzer with dual wavelengths is: - ANSWERMinimize the
effect of interference
Key characteristics of Micrococcus: - ANSWERSusceptible to bacitracin ("A") and
resistant to furazolidone; gram positive cocci in tetras, bacteria cells of micrococcus
luteus are larger than those of the staphylococci and can arrange in tetras
What is the glomerular filtration rate for a patient with a serum creatinine of 2
mg/dL, if the urine creatinine was 124 mg/dL and the urine volume was 2.2 L/24 hrs?
- ANSWER95 mL/min
One method of calculating a glomerular filtration rate is using creatinine and urine
volume to determine creatinine clearance. The equation is as follows:
Creatinine Clearance = (urine creatinine X urine flow rate) / plasma creatinine; where
urine flow rate = volume in mL /24 hours x h/60 min)
In this case = creatinine clearance = 124 X (2200/24 x hour/60) / 2 = 94.7 or 95
ml/min
