AAB MT Chemistry EXAM STUDY GUIDE
2026/2027 ACCURATE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100% GUARANTEED PASS
<NEWEST VERSION>
1. What is the major extracellular cation? - ANSWER ✔ Sodium
2. Which hormone acts on the distal convoluted tubule to increase sodium
reabsorption? - ANSWER ✔ Aldosterone
3. The following metabolic panel results are available on ICU patient
Glucose 90mg/dL
BUN 15mg/dL
Creatinine 1.0 mg/dL
Sodium 165 mmol/L
Potassium 3.5 mmol/L
Chloride 125 mmol/L
Carbon dioxide 25 mmol/L
What is the most probable explanation for these results? - ANSWER ✔
Saline Contamination
,4. What is the most common method for measuring sodium? - ANSWER ✔
ion-selective electrode
5. Which one of the following is the major intracellular cation? - ANSWER ✔
Potassium
6. A potassium result of 6.8 mmol/L obtained from a dialysis patient. Before
reporting this result, what is the most appropriate action? - ANSWER ✔
Check for hemolysis
7. Valinomycin can enhance the selectivity of which ISE electrode? -
ANSWER ✔ Potassium
8. Which of these potassium values would be termed hypokalemia? -
ANSWER ✔ 3.0 mmol/L
9. All of the following can cause low chloride levels EXCEPT which one? -
ANSWER ✔ Dehydration
10.Sweat is an appropriate type of specimen for which electrolyte? - ANSWER
✔ Chloride
11.In the coulometric-amperometric method for chloride, how is the amount of
chloride measured? - ANSWER ✔ time needed to reach the titration end
point
,12.In the classic Schales-Schales (mercurimetric titration) method for chloride,
what substance reacts with the indicator to form a violet color? - ANSWER
✔ excess Hg++
13.Most of the carbon dioxide in the blood is present in which form? -
ANSWER ✔ bicarbonate ion
14.All of the following specimens can be analyzed for carbon dioxide EXCEPT
which one? - ANSWER ✔ Urine
15.Electrolytes normal ranges - ANSWER ✔ Sodium= 136-145 mmol/L
Potassium Serum= 3.4-5.0 mmol/L
Potassium Urine= 25-125 mmol/L
Chloride Serum= 98-107 mmol/L
Chloride Urine= 110-250 mmol/L
Carbon dioxide= 22-29 mmol/L
16.In the complexometric titration (EDTA) method for calcium, the pH must be
adjusted to prevent what occurrence? - ANSWER ✔ Interference by
magnesium.
17.The classic clark-collip method for calcium is based on which assumption? -
ANSWER ✔ Calcium will be precipitated as an oxalate.
18.What is the purpose of lanthanum in the atomic absorption determination of
calcium? - ANSWER ✔ It will bind phosphate
, 19.at a pH of 7.4, most of the phosphorus in the body is in which form? -
ANSWER ✔ bone
20.Inorganic phosphate can be determined from a colorimetric method
involving which reagent? - ANSWER ✔ molybdate.
21.A labor and delivery patient with preeclampsia is being treated for premature
contractions. Which one of the following is the most likely laboratory
finding? - ANSWER ✔ Hypermagnesemia
22.The colorimetric method for magnesium employs which reagent? -
ANSWER ✔ Titan yellow
23.When performing spectrophotometer quality checks, what is the holmium
oxide glass filter used to assess?
A. linearity
B. stray light
C. absorbance accuracy
D. wavelength accuracy - ANSWER ✔ D. Wavelength accuracy
24.What is the principle of flame photometry?
A. emission of a color when an element is burned
B. absorption of energy when an atom is ionized
C. electrometric titration
D. colorimetric analysis - ANSWER ✔ A. Emission of a color when an
element is burned
2026/2027 ACCURATE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100% GUARANTEED PASS
<NEWEST VERSION>
1. What is the major extracellular cation? - ANSWER ✔ Sodium
2. Which hormone acts on the distal convoluted tubule to increase sodium
reabsorption? - ANSWER ✔ Aldosterone
3. The following metabolic panel results are available on ICU patient
Glucose 90mg/dL
BUN 15mg/dL
Creatinine 1.0 mg/dL
Sodium 165 mmol/L
Potassium 3.5 mmol/L
Chloride 125 mmol/L
Carbon dioxide 25 mmol/L
What is the most probable explanation for these results? - ANSWER ✔
Saline Contamination
,4. What is the most common method for measuring sodium? - ANSWER ✔
ion-selective electrode
5. Which one of the following is the major intracellular cation? - ANSWER ✔
Potassium
6. A potassium result of 6.8 mmol/L obtained from a dialysis patient. Before
reporting this result, what is the most appropriate action? - ANSWER ✔
Check for hemolysis
7. Valinomycin can enhance the selectivity of which ISE electrode? -
ANSWER ✔ Potassium
8. Which of these potassium values would be termed hypokalemia? -
ANSWER ✔ 3.0 mmol/L
9. All of the following can cause low chloride levels EXCEPT which one? -
ANSWER ✔ Dehydration
10.Sweat is an appropriate type of specimen for which electrolyte? - ANSWER
✔ Chloride
11.In the coulometric-amperometric method for chloride, how is the amount of
chloride measured? - ANSWER ✔ time needed to reach the titration end
point
,12.In the classic Schales-Schales (mercurimetric titration) method for chloride,
what substance reacts with the indicator to form a violet color? - ANSWER
✔ excess Hg++
13.Most of the carbon dioxide in the blood is present in which form? -
ANSWER ✔ bicarbonate ion
14.All of the following specimens can be analyzed for carbon dioxide EXCEPT
which one? - ANSWER ✔ Urine
15.Electrolytes normal ranges - ANSWER ✔ Sodium= 136-145 mmol/L
Potassium Serum= 3.4-5.0 mmol/L
Potassium Urine= 25-125 mmol/L
Chloride Serum= 98-107 mmol/L
Chloride Urine= 110-250 mmol/L
Carbon dioxide= 22-29 mmol/L
16.In the complexometric titration (EDTA) method for calcium, the pH must be
adjusted to prevent what occurrence? - ANSWER ✔ Interference by
magnesium.
17.The classic clark-collip method for calcium is based on which assumption? -
ANSWER ✔ Calcium will be precipitated as an oxalate.
18.What is the purpose of lanthanum in the atomic absorption determination of
calcium? - ANSWER ✔ It will bind phosphate
, 19.at a pH of 7.4, most of the phosphorus in the body is in which form? -
ANSWER ✔ bone
20.Inorganic phosphate can be determined from a colorimetric method
involving which reagent? - ANSWER ✔ molybdate.
21.A labor and delivery patient with preeclampsia is being treated for premature
contractions. Which one of the following is the most likely laboratory
finding? - ANSWER ✔ Hypermagnesemia
22.The colorimetric method for magnesium employs which reagent? -
ANSWER ✔ Titan yellow
23.When performing spectrophotometer quality checks, what is the holmium
oxide glass filter used to assess?
A. linearity
B. stray light
C. absorbance accuracy
D. wavelength accuracy - ANSWER ✔ D. Wavelength accuracy
24.What is the principle of flame photometry?
A. emission of a color when an element is burned
B. absorption of energy when an atom is ionized
C. electrometric titration
D. colorimetric analysis - ANSWER ✔ A. Emission of a color when an
element is burned
