BOC Chemistry 203 Final Exam
2025
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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-hour postprandial serum glucose
d hemoglobin A1c - ANSWER d (hemoglobin
A1c d Average glucose over time is best
predictor.)
A patient with Type I, insulin-dependent diabetes mellitus has the following results:
Test Patient Reference Range
fasting blood glucose: 150 mg/dL (8.3 mmol/L) 70-110 mg/dL (3.9-6.1 mmol/L)
hemoglobin A1c: 8.5% 4.0%-6.0%
fructosamine: 2.5 mmol/L 2.0-2.9 mmol/L
After reviewing these test results, the technologist concluded that the patient is in
a: a "steady state" of metabolic control
,b state of flux, progressively worsening metabolic control
c improving state of metabolic control as indicated by fructosamine
d state of flux as indicted by the fasting glucose level - ANSWER c (improving
state of metabolic control as indicated by fructosamine
c Role of fructosamine.)
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 Ajc level at the time the sample is drawn - ANSWER a (average
blood glucose levels of the past 2-3 months
a Interpretation of glycated hemoglobin.)
Which of the following hemoglobins has glucose-6-phosphate on
the amino-terminal valine in the beta chain?
aS
bC
c A2
d A1c - ANSWER d (A1c
d Hgb A1C structure.)
A patient with hemolytic anemia will:
a show a decrease in glycated Hgb value
b show an increase in glycated Hgb value
c show little or no change in glycated Hgb value
d demonstrate an elevated Hgb - ANSWER a (show a decrease in glycated
Hgb value
a Glycated hemoglobin directly related life of RBC.)
,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 - ANSWER d (Hgb
S d Interference Hgb A1c)
An increase in serum acetone is indicative of a defect in the metabolism of.
a carbohydrates
b fat
c urea nitrogen
d uric acid - ANSWER a (carbohydrates
a Acetone in carbohydrate metabolism.)
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 - ANSWER a (further tests are
indicated
a Copper reduction reaction detects many reducing substances.)
Blood samples were collected at the beginning of an exercise class and after thirty
minutes 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 elevated lactic acid, elevated pyruvate - ANSWER d (elevated lactic acid,
elevated pyruvate
d Products of glycolysis.)
What is the best method to diagnose lactase deficiency?
a H2 breath test
b plasma aldolase level
c LDH level
d D-xylose test - ANSWER a (H2 breath test
a Diagnosis of lactase deficiency.)
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 - ANSWER a (metabolic acidosis
a Reduced excretion of acids.)
Severe diarrhea causes:
a metabolic acidosis
b metabolic alkalosis
c respiratory acidosis
d respiratory alkalosis - ANSWER a (metabolic acidosis
a Excessive loss of bicarbonate.)
The following blood gas results were obtained: pH:
7.18
2025
For assistance with your assignment email me
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-hour postprandial serum glucose
d hemoglobin A1c - ANSWER d (hemoglobin
A1c d Average glucose over time is best
predictor.)
A patient with Type I, insulin-dependent diabetes mellitus has the following results:
Test Patient Reference Range
fasting blood glucose: 150 mg/dL (8.3 mmol/L) 70-110 mg/dL (3.9-6.1 mmol/L)
hemoglobin A1c: 8.5% 4.0%-6.0%
fructosamine: 2.5 mmol/L 2.0-2.9 mmol/L
After reviewing these test results, the technologist concluded that the patient is in
a: a "steady state" of metabolic control
,b state of flux, progressively worsening metabolic control
c improving state of metabolic control as indicated by fructosamine
d state of flux as indicted by the fasting glucose level - ANSWER c (improving
state of metabolic control as indicated by fructosamine
c Role of fructosamine.)
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 Ajc level at the time the sample is drawn - ANSWER a (average
blood glucose levels of the past 2-3 months
a Interpretation of glycated hemoglobin.)
Which of the following hemoglobins has glucose-6-phosphate on
the amino-terminal valine in the beta chain?
aS
bC
c A2
d A1c - ANSWER d (A1c
d Hgb A1C structure.)
A patient with hemolytic anemia will:
a show a decrease in glycated Hgb value
b show an increase in glycated Hgb value
c show little or no change in glycated Hgb value
d demonstrate an elevated Hgb - ANSWER a (show a decrease in glycated
Hgb value
a Glycated hemoglobin directly related life of RBC.)
,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 - ANSWER d (Hgb
S d Interference Hgb A1c)
An increase in serum acetone is indicative of a defect in the metabolism of.
a carbohydrates
b fat
c urea nitrogen
d uric acid - ANSWER a (carbohydrates
a Acetone in carbohydrate metabolism.)
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 - ANSWER a (further tests are
indicated
a Copper reduction reaction detects many reducing substances.)
Blood samples were collected at the beginning of an exercise class and after thirty
minutes 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 elevated lactic acid, elevated pyruvate - ANSWER d (elevated lactic acid,
elevated pyruvate
d Products of glycolysis.)
What is the best method to diagnose lactase deficiency?
a H2 breath test
b plasma aldolase level
c LDH level
d D-xylose test - ANSWER a (H2 breath test
a Diagnosis of lactase deficiency.)
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 - ANSWER a (metabolic acidosis
a Reduced excretion of acids.)
Severe diarrhea causes:
a metabolic acidosis
b metabolic alkalosis
c respiratory acidosis
d respiratory alkalosis - ANSWER a (metabolic acidosis
a Excessive loss of bicarbonate.)
The following blood gas results were obtained: pH:
7.18
