HESI DOSAGE CALCULATION EXAM – Complete
Assessment – Safe Medication Math – Clinical
Dosage Problems – Actual Exam – Pass
Guaranteed - A+ Graded
Basic Medication Math and Conversions
Q1: The healthcare provider orders acetaminophen 1 g PO. The pharmacy sends 250 mg
tablets. How many tablets should the nurse administer?
A. 2 tablets
B. 3 tablets
C. 4 tablets [CORRECT]
D. 5 tablets
Rationale: The best answer is 4 tablets because 1 g equals 1000 mg, and 1000 mg
divided by 250 mg per tablet equals 4 tablets. Remember to always convert grams to
milligrams before you divide.
Correct Answer: C
Q2: (Calculate: round to nearest whole number) How many micrograms are in 2.5 mg?
Answer: 2500 mcg [CORRECT]
Rationale: This is correct because there are 1000 mcg in 1 mg, so 2.5 mg multiplied by
1000 equals 2500 mcg. This matches the HESI rounding rule for conversions.
Correct Answer: 2500 mcg
Q3: How many milliliters are in 4 teaspoons?
A. 15 mL
B. 20 mL [CORRECT]
C. 25 mL
D. 30 mL
,Rationale: The best answer is 20 mL because 1 teaspoon equals 5 mL, so 4 teaspoons
times 5 equals 20 mL. This is a standard household-to-metric conversion.
Correct Answer: B
Q4: (Calculate: round to nearest tenth) A patient needs 0.75 g of a medication. How
many mg should the nurse administer?
Answer: 750 mg [CORRECT]
Rationale: This is correct because 1 g equals 1000 mg, so 0.75 g multiplied by 1000
equals 750 mg. No rounding to the tenth is needed since this is a whole number.
Correct Answer: 750 mg
Q5: How many milligrams are equivalent to gr 1/6? (1 gr = 60 mg)
A. 6 mg
B. 8 mg
C. 10 mg [CORRECT]
D. 12 mg
Rationale: The best answer is 10 mg because 60 mg divided by 6 equals 10 mg. Grain
conversions are less common now but still show up on exams, so it's good to know that
gr 1/6 equals 10 mg.
Correct Answer: C
Q6: (Calculate: round to nearest whole number) How many mL are in 3 teaspoons?
Answer: 15 mL [CORRECT]
Rationale: This is correct because 1 teaspoon equals 5 mL, so 3 teaspoons multiplied
by 5 equals 15 mL. This is a standard household-to-metric conversion.
Correct Answer: 15 mL
Q7: A nurse needs to administer furosemide 80 mg PO. The available tablets are 40 mg
scored tablets. How many tablets should the nurse give?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets [CORRECT]
D. 2.5 tablets
Rationale: The best answer is 2 tablets because 80 mg divided by 40 mg per tablet
equals 2 tablets. Since the tablets are scored, you could split them if needed, but here
you need exactly two whole tablets.
Correct Answer: C
, Q8: (Calculate: round to nearest hundredth) Convert 2.75 L to mL.
Answer: 2750 mL [CORRECT]
Rationale: This is correct because 1 L equals 1000 mL, so 2.75 L multiplied by 1000
equals 2750 mL. No rounding to the hundredth is needed since this is a whole number.
Correct Answer: 2750 mL
Q9: A medication order reads 0.5 g. How many mg does this equal?
A. 5 mg
B. 50 mg
C. 500 mg [CORRECT]
D. 5000 mg
Rationale: The best answer is 500 mg because 1 g equals 1000 mg, so 0.5 g times 1000
equals 500 mg. Moving the decimal three places to the right converts grams to
milligrams.
Correct Answer: C
Q10: (Calculate: round to nearest tenth) A patient has an order for digoxin 0.125 mg PO.
The elixir available is 0.05 mg/mL. How many mL should the nurse administer?
Answer: 2.5 mL [CORRECT]
Rationale: This is correct because using the formula D/H × Q, you have 0.125 mg
divided by 0.05 mg/mL, which equals 2.5 mL. This matches the HESI rounding rule for
mL when the answer comes out to a clean tenth.
Correct Answer: 2.5 mL
Oral and Enteral Dosing
Q11: A patient has difficulty swallowing and an order for carbidopa-levodopa 25 mg-100
mg PO. The pharmacy sends scored tablets. The nurse should:
A. Administer the tablet whole with a full glass of water
B. Crush the tablet and mix with applesauce [CORRECT]
C. Have the patient chew the tablet
D. Hold the dose and contact the provider
Rationale: The best answer is to crush the scored tablet and mix with applesauce
because the patient has difficulty swallowing, and scored tablets can safely be crushed
for enteral administration. You wouldn't have them chew it, and holding the dose isn't
necessary since the tablet is scored and can be crushed.
Correct Answer: B
Assessment – Safe Medication Math – Clinical
Dosage Problems – Actual Exam – Pass
Guaranteed - A+ Graded
Basic Medication Math and Conversions
Q1: The healthcare provider orders acetaminophen 1 g PO. The pharmacy sends 250 mg
tablets. How many tablets should the nurse administer?
A. 2 tablets
B. 3 tablets
C. 4 tablets [CORRECT]
D. 5 tablets
Rationale: The best answer is 4 tablets because 1 g equals 1000 mg, and 1000 mg
divided by 250 mg per tablet equals 4 tablets. Remember to always convert grams to
milligrams before you divide.
Correct Answer: C
Q2: (Calculate: round to nearest whole number) How many micrograms are in 2.5 mg?
Answer: 2500 mcg [CORRECT]
Rationale: This is correct because there are 1000 mcg in 1 mg, so 2.5 mg multiplied by
1000 equals 2500 mcg. This matches the HESI rounding rule for conversions.
Correct Answer: 2500 mcg
Q3: How many milliliters are in 4 teaspoons?
A. 15 mL
B. 20 mL [CORRECT]
C. 25 mL
D. 30 mL
,Rationale: The best answer is 20 mL because 1 teaspoon equals 5 mL, so 4 teaspoons
times 5 equals 20 mL. This is a standard household-to-metric conversion.
Correct Answer: B
Q4: (Calculate: round to nearest tenth) A patient needs 0.75 g of a medication. How
many mg should the nurse administer?
Answer: 750 mg [CORRECT]
Rationale: This is correct because 1 g equals 1000 mg, so 0.75 g multiplied by 1000
equals 750 mg. No rounding to the tenth is needed since this is a whole number.
Correct Answer: 750 mg
Q5: How many milligrams are equivalent to gr 1/6? (1 gr = 60 mg)
A. 6 mg
B. 8 mg
C. 10 mg [CORRECT]
D. 12 mg
Rationale: The best answer is 10 mg because 60 mg divided by 6 equals 10 mg. Grain
conversions are less common now but still show up on exams, so it's good to know that
gr 1/6 equals 10 mg.
Correct Answer: C
Q6: (Calculate: round to nearest whole number) How many mL are in 3 teaspoons?
Answer: 15 mL [CORRECT]
Rationale: This is correct because 1 teaspoon equals 5 mL, so 3 teaspoons multiplied
by 5 equals 15 mL. This is a standard household-to-metric conversion.
Correct Answer: 15 mL
Q7: A nurse needs to administer furosemide 80 mg PO. The available tablets are 40 mg
scored tablets. How many tablets should the nurse give?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets [CORRECT]
D. 2.5 tablets
Rationale: The best answer is 2 tablets because 80 mg divided by 40 mg per tablet
equals 2 tablets. Since the tablets are scored, you could split them if needed, but here
you need exactly two whole tablets.
Correct Answer: C
, Q8: (Calculate: round to nearest hundredth) Convert 2.75 L to mL.
Answer: 2750 mL [CORRECT]
Rationale: This is correct because 1 L equals 1000 mL, so 2.75 L multiplied by 1000
equals 2750 mL. No rounding to the hundredth is needed since this is a whole number.
Correct Answer: 2750 mL
Q9: A medication order reads 0.5 g. How many mg does this equal?
A. 5 mg
B. 50 mg
C. 500 mg [CORRECT]
D. 5000 mg
Rationale: The best answer is 500 mg because 1 g equals 1000 mg, so 0.5 g times 1000
equals 500 mg. Moving the decimal three places to the right converts grams to
milligrams.
Correct Answer: C
Q10: (Calculate: round to nearest tenth) A patient has an order for digoxin 0.125 mg PO.
The elixir available is 0.05 mg/mL. How many mL should the nurse administer?
Answer: 2.5 mL [CORRECT]
Rationale: This is correct because using the formula D/H × Q, you have 0.125 mg
divided by 0.05 mg/mL, which equals 2.5 mL. This matches the HESI rounding rule for
mL when the answer comes out to a clean tenth.
Correct Answer: 2.5 mL
Oral and Enteral Dosing
Q11: A patient has difficulty swallowing and an order for carbidopa-levodopa 25 mg-100
mg PO. The pharmacy sends scored tablets. The nurse should:
A. Administer the tablet whole with a full glass of water
B. Crush the tablet and mix with applesauce [CORRECT]
C. Have the patient chew the tablet
D. Hold the dose and contact the provider
Rationale: The best answer is to crush the scored tablet and mix with applesauce
because the patient has difficulty swallowing, and scored tablets can safely be crushed
for enteral administration. You wouldn't have them chew it, and holding the dose isn't
necessary since the tablet is scored and can be crushed.
Correct Answer: B
