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Complete BOC: ASCP prep Exam Questions with Complete Answers
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Complete BOC: ASCP prep ExamQuestions with Complete Answers
1) Following overnight fasting, hypoglycemia in adults is defined as a glucose
of:
a. <70 mg/dL (<3.9 mmol/L)
b. <60 mg/dL (<3.3mmol/L)
c. <55 mg/dL (<3.0mmol/L)
d. <45mg/dL (<2.5mmol/L) - -d (Diagnosis of hypoglycemia in adults.)
-3) The preparation of a patient for standard glucose tolerance testing
should include:
a. a high carbohydrate diet for 3 days
b. a low carbohydrate diet for 3 days
c. fasting for 48 hrs. prior to testing
d. bed rest for 3 days - -a (GTT diet preparation.)
-4) If a fasting glucose was 90 mg/dL, which of the following 2 hr.
postprandial glucose result would most closely represent normal glucose
metabolism?
a. 55 mg/dL (3.0 mmol/L)
b. 100 mg/dL (5.5 mmol/L)
c. 180 mg/dL (9.9 mmol/L)
d. 260 mg/dL (14.3 mmol/L) - -b (Normal 2 hour postprandial value.)
-5) A healthy person with a blood glucose of 80 mg/dL (4.4 mmol/L) would
have a simultaneously determined cerebrospinal fluid glucose value of:
a. 25 mg/dL (1.4 mmol/L)
b. 50 mg/dL (2.3 mmol/L)
c. 100 mg/dL (5.5 mmol/L)
d. 150 mg/dL (8.3 mmol/L) - -b (Ratio of CSF glucose to blood glucose)
-6) A 25 yr. old man became nauseated and vomited 90 mins after receiving
a standard 75 g carbohydrate dose for an oral glucose tolerance test. The
best course of action is to:
a. give the patient a glass of orange juice and continue the test
b. start the test over immediately with a 50 g carbohydrate dose
c. draw blood for glucose and discontinue the test
d. place the patient in a recumbent position, reassure him and continue the
test. - -c (Use of partial GTT information.)
-7) Cerebrospinal fluid for glucose assay should be:
a. refrigerated
b. analyzed immediately
,c. heated to 56C
d. stored at room temperature after centrifugation - -b (Effect of glycolysis
on glucose.)
-8) Which of the following 2 hr. postprandial glucose values demonstrates
unequivocal hyperglycemia diagnostic for diabetes mellitus?
a. 160 mg/dL (8.8 mmol/L)
b. 170 mg/dL (9.4 mmol/L)
c. 180 mg/dL (9.9 mmol/L)
d. 200 mg/dL (11.0 mmol/L) - -d (Unequivocal diagnosis of diabetes
mellitus.)
-10) A 45 yr. old woman has a fasting serum glucose concentration of 95
mg/dL (5.2 mmol/L) and a 2 hr. postprandial glucose concentration of 105
mg/dL (5.8 mmol/L). The statement which best describes this patient's
fasting serum glucose concentration is:
a. normal; reflecting glycogen breakdown by the liver
b. normal; reflecting glycogen breakdown by skeletal muscle
c. abnormal; indication diabetes mellitus
d. abnormal; indicating hypoglycemia - -a (Factors contributing to PBS.)
-9) Serum levels that define hypoglycemia in pre-term or low birth weight
infants are:
a. the same as adults
b. lower than adults
c. the same as a normal full-term infant
d. higher than a normal full-term infant - -b (Age effect on glucose.)
-11) Pregnant women with symptoms of thirst, frequent urination or
unexplained weight loos should have which of the following tests performed?
a. tolbutamide test
b. lactose tolerance test
c. epinephrine tolerance test
d. glucose tolerance test - -d (Gestational diabetes.)
-12) In the fasting state, the arterial and capillary blood glucose
concentration varies from the venous glucose concentration by
approximately how many mg/dL (mmol/L)
a. 1 mg/dL (0.05 mmol/L)
b. 5 mg/dL (0.27 mmol/L)
c. 10 mg/dL (0.55 mmol/L)
d. 15 mg/dL (0.82 mmol/L) - -b (Arterial vs venous glucose values.)
-13) The conversion of glucose or other hexoses into lactate or pyruvate is
called:
a. glycogenesis
,b. glycogenolysis
c. gluconeogenesis
d. glycolysis - -d (Definition of glycolysis)
-14) Which of the following values obtained during a glucose tolerance test
are diagnostic of diabetes mellitus?
a. 2 hr. specimen = 150 mg/dL (8.3 mmol/L)
b. fasting plasma glucose = 126 mg/dL (6.9 mmol/L)
c. fasting plasma glucose = 110 mg/dL (6.1 mmol/L)
d. 2 hr. specimen = 180 mg/dL (9.9 mmol/L) - -b (Diagnosis of diabetes
mellitus)
-15) The glycated hemoglobin value represents the integrated values of
glucose concentration during the preceding:
a. 1-3 weeks
b. 4-5 weeks
c. 6-8 weeks
d. 16-20 weeks - -c (Definition of glycated hemoglobin.)
-16) Monitoring long term glucose control in patients with adult onset
diabetes mellitus can best be accomplished by measuring:
a. weekly fasting 7 am serum glucose
b. glucose tolerance testing
c. 2 hr. postprandial serum glucose
d. hemoglobin A1c - -d (Average glucose over time is best predictor.)
-18) Total glycosylated hemoglobin levels in a hemolysate reflect the:
a. average blood glucose levels of the past 2-3 months
b. average blood glucose levels for the past week
c. blood glucose level at the time the sample is drawn
d. hemoglobin A1c level at the time the sample is drawn - -a (Interpretation
of glycated hemoglobin.)
-19) Which of the following hemoglobins has glucose-6-phosphate on the
amino-terminal valine of the beta chain?
a. S
b. C
c. A2
d. A1c - -d (Hgb A1C structure.)
-20) A patient with hemolytic anemia will:
a. show a decrease in glycated Hgb value
b. show a increase in glycated Hgb value
c. show little or no change in glycated Hgb value
d. demonstrate an elevated Hgb A1 - -a (Glycated hemoglobin directly
related to life of RBC.)
, -21) In using ion-exchange chromatographic methods, falsely increased
levels of Hgb A1c might be demonstrated in the presence of:
a. iron deficiency anemia
b. pernicious anemia
c. thalassemias
d. Hgb S - -d (Interference HgbA1C.)
-22) An increase in serum acetone is indicative of a defect in the metabolism
of:
a. carbohydrates
b. fats
c. urea nitrogen
d. uric acid - -a (Acetone in carbohydrate metabolism.)
-23) An infant with diarrhea is being evaluated for a carbohydrate
intolerance. His stool yields a positive copper reduction test and a pH of 5.0.
It should be concluded that:
a. further tests are indicated
b. results are inconsistent-repeat both tests
c. the diarrhea is not due to carbohydrate intolerance
d. the tests provided no useful information - -a (Copper reduction reaction
detects many reducing substances.)
-24) Blood samples were collected at the beginning of an exercise class and
after thirty mins. of aerobic activity. Which of the following would be most
consistent with the post exercise sample?
a. normal lactic acid, low pyruvate
b. low lactic acid, elevated pyruvate
c. elevated lactic acid, low pyruvate
d. elevate lactic acid, elevated pyruvate - -d (Products of glycolysis.)
-25) What is the best method to diagnose lactase deficiency?
a. H2 breath test
b. plasma aldolase level
c. LDH level
d. d-xylose test - -a (Diagnosis of lactase deficiency.)
-26) The expected blood gas results for a patient in chronic renal failure
would match the pattern of:
a. metabolic acidosis
b. respiratory acidosis
c. metabolic alkalosis
d. respiratory alkalosis - -a (Reduced excretion of acids.)
-27) Severe diarrhea causes:
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