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ASCP MLS EXAM|160 QUESTIONS AND ANSWERS 2024
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ASCP MLS EXAM|160 QUESTIONS ANDANSWERS 2024
What feature is most often found with patients with a splenectomy on a
Wright's stained blood smear? - -Howell-Jolly bodies
-Patients with antibody to the following antigen are immune to Hepatitis B: -
-Surface antigen (HbSAg)
-Which two of the following tests are helpful for documenting previous
Streptococcal throat and skin infections: - -ASO titer and Anti-DNase B
-In mass spectrometry, the "appearance potential" is defined as the: - -
Minimum 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? - -7.2
-Coulometry: - -An automated method for measuring chloride which
generates silver ions in the reaction
-Erythroleukemia: - -Also 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 - -Is associated with an increase in myeloid and
monocytic cell precursors, but not red blood cell precursors
-Species that are Lysine (+), arginine (=) and ornithine (+): - -Enterobacter
aerogenes, Edwardsiella species and most Serratia species
-Lysine reaction for all Citrobacter: - -Negative
-Key identifying characteristic for Pantoa (Enterobacter) agglomerans: - -
negative 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? - -Yersina 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 - -The 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) - -Chediak-Higashi syndrome (CH), Chronic granulomatous disease
(CGD), Myeloperoxidase deficiency (MPO)
-Nephrotic Syndrome: - -Caused 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: - -The 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 - -See 2 quiz #27
-Prozone effect: - -Results 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: - -Minimize
the effect of interference
-Key characteristics of Micrococcus: - -Susceptible 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? - -95 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:
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