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AAB MT HEMATOLOGY EXAM QUESTIONS WITH COMPLETE ANSWERS
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AAB MT HEMATOLOGY EXAM QUESTIONS WITH COMPLETE ANSWERS
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AAB MT HEMATOLOGY EXAMQUESTIONS WITH COMPLETE
ANSWERS
Which of the four elements in proteins differentiated this class of substances from
carbohydrates and lipids? - Answer-Nitrogen
Which of the proteins is soluble in water? - Answer-Albumin
How are amino acids joined together to form a chainlike structure? - Answer-Peptide
bonding
Proteins may become denatured when subjected to mechanical agitation, heat, or
chemical treatment. What does denaturation of proteins refer to? - Answer-Alteration of
tertiary structure
Which aminoacidopathy is NOT caused by an enzyme deficiency? - Answer-Cystinuria
These aminoacidopathies are caused by an enzyme deficiency: - Answer-Maple syrup
disease, phenylketonuria, and alkaptonuria
How many immunoglobulin classes are currently recognized? - Answer-Five
Which reagent is employed in the serum protein determination? - Answer-Biuret
Why should hemolyzed serum not be used for total protein analysis? - Answer-
Hemoglobin is absorbed at the same wavelength as protein in the reagent
Which of the following is NOT true of the biuret reaction? - Answer-It is relatively free
from interference from lipids and hemoglobin
Which of the following is true of the biuret reaction? - Answer-Follows Beer's law for a
reasonable range of protein, depends on the presence of at least two peptide linkages,
and is insensitive to the low protein levels of urine.
Why is bromcresol purple the preferred indicator for albumin dye binding techniques? -
Answer-There is less interference from pigment(s)
What is the most anodic protein on electrophoresis at pH 8.6? - Answer-Albumin
The total protein is 7.1 g/dL. The serum protein results are:
Albumin 53.0% 3.8 g/dL
Alpha1 3.6% 0.3 g/dL
Alpha2 11.0% 0.8 g/dL
, Beta 17.6% 1.2 g/dL
Gamma 14.8% 1.1 g/dL
What is the A/G ratio? - Answer-3.8/(.3+.8+1.2+1.1) = 1.1
A serum protein electrophoretic pattern displaying a beta gamma bridge or broad
gamma is seen in which disease state? - Answer-Active cirrhosis
If an electrophoretic pattern shows 30% albumin, 4%-10% alpha-globulin, 4%-10%
beta-globulin, and 45% gamma globulin, then what condition may exist in the patient? -
Answer-Monoclonal gammopathy
Glycoproteins and mucoproteins are usually bound to which substance? - Answer-
Carbohydrates
All of the following are glycoproteins: - Answer-Ceruloplasmin, follicle-stimulating
hormone (FSH), and fibrinogen
All of the following are glycoproteins EXCEPT: - Answer-Cryoglobulin
Which one of the following applies to cryoglobulins? - Answer-They are temperature-
sensitive proteins
Which of the following statements is true of albumin? - Answer-It is produced in the liver
and is water-soluble
Decreased alpha-fetoprotein values are associated with which condition? - Answer-
Down syndrome
Which one of the following proteins transports iron? - Answer-Transferrin
In acute renal failure, which nonprotein nitrogen rises the fastest? - Answer-Blood urea
nitrogen (BUN)
By the urease method, urea is enzymatically converted to which end product? - Answer-
Ammonia
Why can untreated urine be used for the determination of urea by the diacetyl
monoxomine method? - Answer-The method is not measuring ammonia
An elevated creatinine value is most likely to be accompanied by which of these values?
- Answer-Elevated BUN, 10X creatinine value
What is the classical method for creatinine reaction? - Answer-Jaffe
The measurement of creatinine is based on the formation of a yellow-red color and
which reagent? - Answer-Alkaline picrate
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