ASCP MLS exam (160 questions) with verified detailed solutions

ASCP MLS exam (160 questions) with
verified detailed solutions

What feature is most often found with patients with a splenectomy on a
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Wright's stained blood smear? - correct answer ✔Howell-Jolly bodies
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Patients antibody to the following antigen are immune to Hepatitis B: -
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correct answer ✔Surface antigen (HbSAg)
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Which two of the following tests are helpful for documenting previous
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Streptococcal throat and skin infections: - correct answer ✔ASO titer and
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Anti-DNase B n




In mass spectrometry, the "appearance potential" is defined as the: - correct
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nanswer ✔Minimum energy required for the appearance of a particular
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fragment ion in mass spectrum
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What is generally accepted as the lower threshold value for semen pH from
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fertile males? - correct answer ✔7.2
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Coulometry: - correct answer ✔An automated method for measuring
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chloride which generates silver ions in the reaction
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Erythroleukemia: - correct answer ✔Also known as Acute Myelogenous
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Leukemia type M6. This type is associated with either the presence of both
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erythroid and myeloid precursors OR strictly erythroid precursors.
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,Myelomonocytic leukemia - correct answer ✔Is associated with an increasen n n n n n n n n n


in myeloid and monocytic cell precursors, but not red blood cell precursors
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Species that are Lysine (+), arginine (=) and ornithine (+): - correct answer
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✔Enterobacter aerogenes, Edwardsiella species and most Serratia species
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Lysine reaction for all Citrobacter: - correct answer ✔Negative
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Key identifying characteristic for Pantoa (Enterobacter) agglomerans: - correct
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nanswer ✔negative reactions for the three decarboxylases commonly tested
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( Lysine, arginine and ornithine)
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Which organism is MOST likely responsible for septic reactions associated
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with Red Blood Cell transfusions? - correct answer ✔Yersina entercolitica is
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most likely responsible for septic reactions in transfusions of Red Blood Cells.
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nThis organism is usually acquired by ingestion of contaminated food and
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causes mild symptoms of abdominal pain and diarrhea. Growth of Y.
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entercolitica is enhanced in iron-rich environments such as red cell
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components.


Gaucher's disease - correct answer ✔The most common lysosomal storage
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disease caused by insufficient activity of the lysosomal enzyme
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glucocerebrosidase that leads to the deposition of glucocerebroside in cells n n n n n n n n n n


of the macrophage-monocyte system.
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Diseases associated with dysfunctions of polymorphonuclear neutrophils
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(PMNs) - correct answer ✔Chediak-Higashi syndrome (CH), Chronic
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granulomatous disease (CGD), Myeloperoxidase deficiency (MPO)
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, Nephrotic Syndrome: - correct answer ✔Caused by damage to the kidneys,
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especially the basement membrane of the glomerulus; which causes
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abnormal excretion of protein and red blood cells in the urine. Fats are also
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present in the urine in most cases. A foamy appearance of the urine is a key
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ncharacteristic of this condition. n n n




Clinical symptoms include:
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Swelling
Weight gain from fluid retention
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Poor appetite
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High blood pressure
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Key Biochemical reactions for Enterobacteriaceae: - correct answer ✔The key
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nbiochemical reactions by which the family Enterobacteriaceae can be
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identified include fermentation of carbohydrates, reduction of nitrates to
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nitrites and the absence of cytochrome oxidase activity.
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ANA - correct answer ✔See 2 quiz #27
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Prozone effect: - correct answer ✔Results in a false positive reaction; is the
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result of antibody excess and dilution of antibody can help prevent its
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occurrence


Purpose of a bi-chromatic analyzer with dual wavelengths is: - correct
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answer ✔Minimize the effect of interference
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