MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
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In the complexometric titration (EDTA) method for calcium, the pH must be adjusted to prevent
what occurrence? - CORRECT ANSWERS Interference by magnesium
The classic Clark-Collip method for calcium is based on which assumption? - CORRECT
ANSWERS Calcium will be precipitated as an oxalate
What is the purpose of lanthanum in the atomic absorption determination of calcium? -
CORRECT ANSWERS It will bind phosphate
At a pH of 7.4, most of the phosphorous in the body is in which form? - CORRECT
ANSWERS Bone
Inorganic phosphate can be determined from a colorimetric method involving which reagent? -
CORRECT ANSWERS Molybdate
A labor and deliver patient with preeclampsia is being treated for premature contractions.
Which one of the following is the most likely laboratory finding? - CORRECT ANSWERS
Hypermagnesemia
The colorimetric method for magnesium employs which reagent? - CORRECT ANSWERS
Titan yellow
What is the most abundant iron-containing compound in the body? - CORRECT
ANSWERS Ferritin
Why should serum iron be drawn at the same time on consecutive days? - CORRECT
ANSWERS To avoid diurnal variation
,MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
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Which protein transports the majority of protein in the bloodstream? - CORRECT
ANSWERS Ceruplasmin
Increased serum copper is seen in which disease? - CORRECT ANSWERS Wilson's
disease
Which analyte is an early indicator of tissue hypoxia? - CORRECT ANSWERS Lactic acid
What is the major extracellular cation? - CORRECT ANSWERS Sodium
Which hormone acts on the distal convoluted tubule to increase sodium reabsorption? -
CORRECT ANSWERS Aldosterone
The following metabolic panel results are available on an ICU patient:
Glucose 90 mg/dL Potassium 3.5 mmol/L
BUN 15 mg/dL Chloride 125 mmol/L
Creatinine 1.0 mg/dL Carbon Dioxide 25 mmol/L
Sodium 165 mmol/L
What is the probable explanation for these results? - CORRECT ANSWERS Saline
contamination
What is the most common method for measuring sodium? - CORRECT ANSWERS Ion-
selective electrode
, MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
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Which one of the following is the major intracellular cation? - CORRECT ANSWERS
Potassium
A potassium result of 6.8 mmol/L is obtained from a dialysis patient. Before reporting this
result, what is the most appropriate action? - CORRECT ANSWERS Check for hemolysis
Valinomycin can enhance the selectivity of which ISE electrode? - CORRECT ANSWERS
Potassium
Which of these potassium values would be termed hypokalemia? - CORRECT ANSWERS
3.0 mmol/L
All of the following can cause low chloride levels: - CORRECT ANSWERS Diabetic
acidosis, renal failure, and prolonged vomiting
All of the following can cause low chloride levels EXCEPT: - CORRECT ANSWERS
Dehydration
Sweat is an appropriate type of specimen for which electrolyte? - CORRECT ANSWERS
Chloride
In the colourometric-amoerometric method for chloride, how is the amount of chloride
measured? - CORRECT ANSWERS Time needed to reach the titration end point
In the classic Schales-Schales (mercurimetric titration) method for chloride, what substance
reacts with the indicator to form a violet color? - CORRECT ANSWERS Excess Hg++
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In the complexometric titration (EDTA) method for calcium, the pH must be adjusted to prevent
what occurrence? - CORRECT ANSWERS Interference by magnesium
The classic Clark-Collip method for calcium is based on which assumption? - CORRECT
ANSWERS Calcium will be precipitated as an oxalate
What is the purpose of lanthanum in the atomic absorption determination of calcium? -
CORRECT ANSWERS It will bind phosphate
At a pH of 7.4, most of the phosphorous in the body is in which form? - CORRECT
ANSWERS Bone
Inorganic phosphate can be determined from a colorimetric method involving which reagent? -
CORRECT ANSWERS Molybdate
A labor and deliver patient with preeclampsia is being treated for premature contractions.
Which one of the following is the most likely laboratory finding? - CORRECT ANSWERS
Hypermagnesemia
The colorimetric method for magnesium employs which reagent? - CORRECT ANSWERS
Titan yellow
What is the most abundant iron-containing compound in the body? - CORRECT
ANSWERS Ferritin
Why should serum iron be drawn at the same time on consecutive days? - CORRECT
ANSWERS To avoid diurnal variation
,MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
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100% CORRECT DETAILED ANSWERS BEST GRADED TO SCORE
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Which protein transports the majority of protein in the bloodstream? - CORRECT
ANSWERS Ceruplasmin
Increased serum copper is seen in which disease? - CORRECT ANSWERS Wilson's
disease
Which analyte is an early indicator of tissue hypoxia? - CORRECT ANSWERS Lactic acid
What is the major extracellular cation? - CORRECT ANSWERS Sodium
Which hormone acts on the distal convoluted tubule to increase sodium reabsorption? -
CORRECT ANSWERS Aldosterone
The following metabolic panel results are available on an ICU patient:
Glucose 90 mg/dL Potassium 3.5 mmol/L
BUN 15 mg/dL Chloride 125 mmol/L
Creatinine 1.0 mg/dL Carbon Dioxide 25 mmol/L
Sodium 165 mmol/L
What is the probable explanation for these results? - CORRECT ANSWERS Saline
contamination
What is the most common method for measuring sodium? - CORRECT ANSWERS Ion-
selective electrode
, MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE SOLUTION WITH
100% CORRECT DETAILED ANSWERS BEST GRADED TO SCORE
A+ FOR SUCCESS
Which one of the following is the major intracellular cation? - CORRECT ANSWERS
Potassium
A potassium result of 6.8 mmol/L is obtained from a dialysis patient. Before reporting this
result, what is the most appropriate action? - CORRECT ANSWERS Check for hemolysis
Valinomycin can enhance the selectivity of which ISE electrode? - CORRECT ANSWERS
Potassium
Which of these potassium values would be termed hypokalemia? - CORRECT ANSWERS
3.0 mmol/L
All of the following can cause low chloride levels: - CORRECT ANSWERS Diabetic
acidosis, renal failure, and prolonged vomiting
All of the following can cause low chloride levels EXCEPT: - CORRECT ANSWERS
Dehydration
Sweat is an appropriate type of specimen for which electrolyte? - CORRECT ANSWERS
Chloride
In the colourometric-amoerometric method for chloride, how is the amount of chloride
measured? - CORRECT ANSWERS Time needed to reach the titration end point
In the classic Schales-Schales (mercurimetric titration) method for chloride, what substance
reacts with the indicator to form a violet color? - CORRECT ANSWERS Excess Hg++
