Chemistry 130 Arizona college of nursing midterm
Exam | Real Questions & Answers (100 %Score)
Latest Updated Comprehensive Questions A+ Graded
Answers
SECTION 1 – Matter, Measurement, Units, Significant Figures (Q1–15)
Q1. A nursing student measures 12.50 mL of medication using a graduated cylinder and
records the value. How many significant figures does this measurement contain?
A. Two
B. Three
C. Four
D. Five
E. One
C. Four
12.50 has four significant figures.
Q2. A medication dose is calculated as 0.004560 grams and must be reported with correct
significant figures. How many significant figures are present in this value?
A. Three
B. Four
C. Five
,D. Six
E. Two
B. Four
Leading zeros are not significant; 4560 gives four.
Q3. A nurse must convert a patient’s temperature of 98.6°F to Celsius for documentation in
a metric chart. What is the correct Celsius value?
A. 35.0°C
B. 36.0°C
C. 37.0°C
D. 38.0°C
E. 39.0°C
C. 37.0°C
(98.6-32)×5/9 ≈ 37.0.
Q4. A solution volume is measured as 0.0250 liters and must be expressed in milliliters with
correct significant figures. What is the correct conversion?
A. 2.50 mL
B. 25.0 mL
C. 250 mL
D. 0.250 mL
E. 2.5 mL
B. 25.0 mL
0.0250 L = 25.0 mL.
,Q5. A medication order requires 0.750 mg of a drug, but the available tablets are labeled in
micrograms. What is the equivalent dose in micrograms?
A. 75 µg
B. 750 µg
C. 7500 µg
D. 0.75 µg
E. 7.50 µg
B. 750 µg
1 mg = 1000 µg.
Q6. A nurse calculates a dosage and obtains 2.3456 mL, but the syringe only measures to
the nearest 0.1 mL. How should the value be reported?
A. 2.3 mL
B. 2.35 mL
C. 2.4 mL
D. 2.34 mL
E. 2.346 mL
C. 2.4 mL
Round to one decimal place.
Q7. A patient’s weight is recorded as 154 pounds and must be converted to kilograms for a
medication calculation. What is the approximate weight in kilograms?
, A. 60 kg
B. 65 kg
C. 70 kg
D. 75 kg
E. 80 kg
C. 70 kg
154 lb ÷ 2.2 ≈ 70 kg.
Q8. A laboratory report shows a sodium concentration of 140 milliequivalents per liter.
Which unit expression is equivalent to this concentration?
A. 140 moles per liter
B. 140 millimoles per liter for monovalent ion
C. 140 grams per liter
D. 140 micrograms per liter
E. 140 equivalents per milliliter
B. 140 millimoles per liter for monovalent ion
For Na⁺, mEq/L ≈ mmol/L.
Q9. A nurse must administer 0.125 grams of a medication, but the vial concentration is 250
mg per 5 mL. How many milliliters should be administered?
A. 1.25 mL
B. 2.50 mL
C. 3.75 mL
Exam | Real Questions & Answers (100 %Score)
Latest Updated Comprehensive Questions A+ Graded
Answers
SECTION 1 – Matter, Measurement, Units, Significant Figures (Q1–15)
Q1. A nursing student measures 12.50 mL of medication using a graduated cylinder and
records the value. How many significant figures does this measurement contain?
A. Two
B. Three
C. Four
D. Five
E. One
C. Four
12.50 has four significant figures.
Q2. A medication dose is calculated as 0.004560 grams and must be reported with correct
significant figures. How many significant figures are present in this value?
A. Three
B. Four
C. Five
,D. Six
E. Two
B. Four
Leading zeros are not significant; 4560 gives four.
Q3. A nurse must convert a patient’s temperature of 98.6°F to Celsius for documentation in
a metric chart. What is the correct Celsius value?
A. 35.0°C
B. 36.0°C
C. 37.0°C
D. 38.0°C
E. 39.0°C
C. 37.0°C
(98.6-32)×5/9 ≈ 37.0.
Q4. A solution volume is measured as 0.0250 liters and must be expressed in milliliters with
correct significant figures. What is the correct conversion?
A. 2.50 mL
B. 25.0 mL
C. 250 mL
D. 0.250 mL
E. 2.5 mL
B. 25.0 mL
0.0250 L = 25.0 mL.
,Q5. A medication order requires 0.750 mg of a drug, but the available tablets are labeled in
micrograms. What is the equivalent dose in micrograms?
A. 75 µg
B. 750 µg
C. 7500 µg
D. 0.75 µg
E. 7.50 µg
B. 750 µg
1 mg = 1000 µg.
Q6. A nurse calculates a dosage and obtains 2.3456 mL, but the syringe only measures to
the nearest 0.1 mL. How should the value be reported?
A. 2.3 mL
B. 2.35 mL
C. 2.4 mL
D. 2.34 mL
E. 2.346 mL
C. 2.4 mL
Round to one decimal place.
Q7. A patient’s weight is recorded as 154 pounds and must be converted to kilograms for a
medication calculation. What is the approximate weight in kilograms?
, A. 60 kg
B. 65 kg
C. 70 kg
D. 75 kg
E. 80 kg
C. 70 kg
154 lb ÷ 2.2 ≈ 70 kg.
Q8. A laboratory report shows a sodium concentration of 140 milliequivalents per liter.
Which unit expression is equivalent to this concentration?
A. 140 moles per liter
B. 140 millimoles per liter for monovalent ion
C. 140 grams per liter
D. 140 micrograms per liter
E. 140 equivalents per milliliter
B. 140 millimoles per liter for monovalent ion
For Na⁺, mEq/L ≈ mmol/L.
Q9. A nurse must administer 0.125 grams of a medication, but the vial concentration is 250
mg per 5 mL. How many milliliters should be administered?
A. 1.25 mL
B. 2.50 mL
C. 3.75 mL
