MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
What is the most common method for measuring sodium? - CORRECT ANSWERS Ion-
selective electrode
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
,MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
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++
Most of the carbon dioxide in the blood is present in which form? - CORRECT ANSWERS
Bicarbonate ion
All of the following specimens can be analyzed for carbon dioxide: - CORRECT ANSWERS
Serum, plasma, and whole blood
All of the following specimens can be analyzed for carbon dioxide EXCEPT: - CORRECT
ANSWERS Urine
Which electrolytes are within the normal range? - CORRECT ANSWERS Sodium 140,
Potassium 4.5, Chloride 100, and CO2 25
Given the following results, what is the anion gap?
Sodium 145 mmol/L
Potassium 4.0 mmol/L
Chloride 100 mmol/L
Bicarbonate 22 mmol/L - CORRECT ANSWERS (Na + K) - (Cl + HCO3)
(145 + 4.0) - (100+22) = 27
What term describes a substance that minimizes any change in hydrogen ion concentration? -
CORRECT ANSWERS Buffer
Which organ primarily regulates the level of carbon dioxide? - CORRECT ANSWERS
Lung
, MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
What will happen if blood is exposed to the air during specimen collection for pH and blood
gases? - CORRECT ANSWERS pCO2 decreases
Which of the following is the Henderson-Hasselbalch equation? - CORRECT ANSWERS
pH = pKa + log (salt/acid)
What is the ratio of bicarbonate:carbonic acid in normal plasma? - CORRECT ANSWERS
20:1
Lab results on a known diabetic patient revealed a decreased bicarbonate and a decreased pH.
Which acid-base disorder would most likely cause these lab values? - CORRECT
ANSWERS Metabolic acidosis
What is the normal range for pH of blood? - CORRECT ANSWERS 7.35-7.45
Which statement concerning optical density according to Beer's law is true? - CORRECT
ANSWERS It is directly proportional to the concentration
For the UV range, which of these must be employed in the spectrophotometer? - CORRECT
ANSWERS Quartz cuvette
When performing spectrophotometer quality checks, what is the holmium oxide glass filter
used to assess? - CORRECT ANSWERS Wavelength accuracy
What is the principle of flame photometry? - CORRECT ANSWERS Emission of a color
when an element is burned
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
What is the most common method for measuring sodium? - CORRECT ANSWERS Ion-
selective electrode
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
,MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
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++
Most of the carbon dioxide in the blood is present in which form? - CORRECT ANSWERS
Bicarbonate ion
All of the following specimens can be analyzed for carbon dioxide: - CORRECT ANSWERS
Serum, plasma, and whole blood
All of the following specimens can be analyzed for carbon dioxide EXCEPT: - CORRECT
ANSWERS Urine
Which electrolytes are within the normal range? - CORRECT ANSWERS Sodium 140,
Potassium 4.5, Chloride 100, and CO2 25
Given the following results, what is the anion gap?
Sodium 145 mmol/L
Potassium 4.0 mmol/L
Chloride 100 mmol/L
Bicarbonate 22 mmol/L - CORRECT ANSWERS (Na + K) - (Cl + HCO3)
(145 + 4.0) - (100+22) = 27
What term describes a substance that minimizes any change in hydrogen ion concentration? -
CORRECT ANSWERS Buffer
Which organ primarily regulates the level of carbon dioxide? - CORRECT ANSWERS
Lung
, MT AAB CHEMISTRY QUESTIONS AND ANSWERS LATEST
DOWNLOADED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% ACCURATE BEST RATED A+ FOR SUCCESS
What will happen if blood is exposed to the air during specimen collection for pH and blood
gases? - CORRECT ANSWERS pCO2 decreases
Which of the following is the Henderson-Hasselbalch equation? - CORRECT ANSWERS
pH = pKa + log (salt/acid)
What is the ratio of bicarbonate:carbonic acid in normal plasma? - CORRECT ANSWERS
20:1
Lab results on a known diabetic patient revealed a decreased bicarbonate and a decreased pH.
Which acid-base disorder would most likely cause these lab values? - CORRECT
ANSWERS Metabolic acidosis
What is the normal range for pH of blood? - CORRECT ANSWERS 7.35-7.45
Which statement concerning optical density according to Beer's law is true? - CORRECT
ANSWERS It is directly proportional to the concentration
For the UV range, which of these must be employed in the spectrophotometer? - CORRECT
ANSWERS Quartz cuvette
When performing spectrophotometer quality checks, what is the holmium oxide glass filter
used to assess? - CORRECT ANSWERS Wavelength accuracy
What is the principle of flame photometry? - CORRECT ANSWERS Emission of a color
when an element is burned
