RELIAS RN BASIC MATH ABILITY EXAM V2:
(LATEST UPDATE 2026/2027), | QUESTIONS
& ANSWERS | 100% CORRECT | GRADE A
RELIAS RN BASIC MATH ABILITY EXAM V2
Relias RN Basic Math Ability Exam V2 (2026/2027)
Question 1
The physician orders 500 mg of amoxicillin. The available tablets are 250 mg each.
How many tablets should the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 2.5 tablets
Rationale:
The correct formula is Desired ÷ Have × Quantity. Dividing 500 mg by 250 mg equals
2 tablets. Multiplying 2 tablets by the tablet strength (250 mg) confirms a total dose of
500 mg. A safety verification confirms the administered dose exactly matches the
provider’s order, preventing underdosing or overdosing.
Question 2
Convert 2.5 grams to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Rationale:
One gram equals 1,000 milligrams. Multiplying 2.5 grams by 1,000 results in 2,500
milligrams. Moving the decimal three places to the right is the correct conversion
,method. This ensures accurate dosing, especially when medications are supplied in
milligrams.
Question 3
The order is for 0.5 mg of digoxin. Available tablets are 0.25 mg each. How many
tablets should the nurse administer?
A. 0.5 tablet
B. 2 tablets
C. 1 tablet
D. 4 tablets
Rationale:
Using Desired ÷ Have × Quantity, 0.5 mg divided by 0.25 mg equals 2 tablets.
Administering two tablets delivers the prescribed dose. Digoxin has a narrow
therapeutic range, so precise calculation is critical. A final safety check confirms 2 ×
0.25 mg equals 0.5 mg.
Question 4
A nurse must administer 750 mg of acetaminophen. The available tablets are 500 mg
each. How many tablets are needed?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Rationale:
Dividing 750 mg by 500 mg equals 1.5 tablets. Scored tablets may be safely split if
allowed by policy and medication formulation. Administering 1.5 tablets provides the
exact dose ordered. Safety verification confirms no rounding error that could result in
toxicity.
Question 5
Convert 0.75 liters to milliliters.
A. 75 mL
B. 750 mL
,C. 750 mL
D. 7,500 mL
Rationale:
One liter equals 1,000 milliliters. Multiplying 0.75 by 1,000 gives 750 mL. This
conversion is essential for IV fluid administration. A safety check ensures correct
decimal placement to avoid tenfold dosing errors.
Question 6
A medication order reads 25 mg/kg/day divided into two doses. The child weighs 20
kg. How many milligrams should be given per dose?
A. 125 mg
B. 250 mg
C. 500 mg
D. 1,000 mg
Rationale:
Multiply 25 mg by 20 kg to obtain a total daily dose of 500 mg. Dividing by two doses
results in 250 mg per dose. Weight-based dosing ensures pediatric safety and
effectiveness. Verifying calculations prevents dosing errors common in pediatric
medication administration.
Question 7
An IV order reads 1,000 mL over 8 hours. What is the infusion rate in mL/hr?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 250 mL/hr
Rationale:
Divide total volume by time: 1,000 mL ÷ 8 hours equals 125 mL/hr. Accurate IV rate
calculation prevents fluid overload or dehydration. The rate should be programmed
carefully into the infusion pump. A final safety check confirms the rate matches the
prescribed infusion time.
Question 8
, A nurse administers 0.25 g of a medication. How many milligrams is this?
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Rationale:
Grams are converted to milligrams by multiplying by 1,000. Multiplying 0.25 g by
1,000 equals 250 mg. This conversion is frequently tested due to its high risk for
decimal errors. Verifying unit consistency ensures patient safety.
Question 9
The order is 500 mL IV fluids to infuse over 4 hours. What is the flow rate in mL/hr?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 200 mL/hr
Rationale:
Dividing 500 mL by 4 hours results in 125 mL/hr. This calculation ensures the fluid is
delivered evenly over the prescribed time. Accurate rate setting prevents
complications such as fluid overload. Safety verification confirms correct use of the
volume/time formula.
Question 10
Convert 1.2 kg to grams.
A. 12 g
B. 120 g
C. 1,200 g
D. 12,000 g
Rationale:
One kilogram equals 1,000 grams. Multiplying 1.2 by 1,000 gives 1,200 grams. Metric
conversions are foundational for medication calculations. A safety check confirms no
extra zeros were added or omitted.
(LATEST UPDATE 2026/2027), | QUESTIONS
& ANSWERS | 100% CORRECT | GRADE A
RELIAS RN BASIC MATH ABILITY EXAM V2
Relias RN Basic Math Ability Exam V2 (2026/2027)
Question 1
The physician orders 500 mg of amoxicillin. The available tablets are 250 mg each.
How many tablets should the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 2.5 tablets
Rationale:
The correct formula is Desired ÷ Have × Quantity. Dividing 500 mg by 250 mg equals
2 tablets. Multiplying 2 tablets by the tablet strength (250 mg) confirms a total dose of
500 mg. A safety verification confirms the administered dose exactly matches the
provider’s order, preventing underdosing or overdosing.
Question 2
Convert 2.5 grams to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Rationale:
One gram equals 1,000 milligrams. Multiplying 2.5 grams by 1,000 results in 2,500
milligrams. Moving the decimal three places to the right is the correct conversion
,method. This ensures accurate dosing, especially when medications are supplied in
milligrams.
Question 3
The order is for 0.5 mg of digoxin. Available tablets are 0.25 mg each. How many
tablets should the nurse administer?
A. 0.5 tablet
B. 2 tablets
C. 1 tablet
D. 4 tablets
Rationale:
Using Desired ÷ Have × Quantity, 0.5 mg divided by 0.25 mg equals 2 tablets.
Administering two tablets delivers the prescribed dose. Digoxin has a narrow
therapeutic range, so precise calculation is critical. A final safety check confirms 2 ×
0.25 mg equals 0.5 mg.
Question 4
A nurse must administer 750 mg of acetaminophen. The available tablets are 500 mg
each. How many tablets are needed?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Rationale:
Dividing 750 mg by 500 mg equals 1.5 tablets. Scored tablets may be safely split if
allowed by policy and medication formulation. Administering 1.5 tablets provides the
exact dose ordered. Safety verification confirms no rounding error that could result in
toxicity.
Question 5
Convert 0.75 liters to milliliters.
A. 75 mL
B. 750 mL
,C. 750 mL
D. 7,500 mL
Rationale:
One liter equals 1,000 milliliters. Multiplying 0.75 by 1,000 gives 750 mL. This
conversion is essential for IV fluid administration. A safety check ensures correct
decimal placement to avoid tenfold dosing errors.
Question 6
A medication order reads 25 mg/kg/day divided into two doses. The child weighs 20
kg. How many milligrams should be given per dose?
A. 125 mg
B. 250 mg
C. 500 mg
D. 1,000 mg
Rationale:
Multiply 25 mg by 20 kg to obtain a total daily dose of 500 mg. Dividing by two doses
results in 250 mg per dose. Weight-based dosing ensures pediatric safety and
effectiveness. Verifying calculations prevents dosing errors common in pediatric
medication administration.
Question 7
An IV order reads 1,000 mL over 8 hours. What is the infusion rate in mL/hr?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 250 mL/hr
Rationale:
Divide total volume by time: 1,000 mL ÷ 8 hours equals 125 mL/hr. Accurate IV rate
calculation prevents fluid overload or dehydration. The rate should be programmed
carefully into the infusion pump. A final safety check confirms the rate matches the
prescribed infusion time.
Question 8
, A nurse administers 0.25 g of a medication. How many milligrams is this?
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Rationale:
Grams are converted to milligrams by multiplying by 1,000. Multiplying 0.25 g by
1,000 equals 250 mg. This conversion is frequently tested due to its high risk for
decimal errors. Verifying unit consistency ensures patient safety.
Question 9
The order is 500 mL IV fluids to infuse over 4 hours. What is the flow rate in mL/hr?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 200 mL/hr
Rationale:
Dividing 500 mL by 4 hours results in 125 mL/hr. This calculation ensures the fluid is
delivered evenly over the prescribed time. Accurate rate setting prevents
complications such as fluid overload. Safety verification confirms correct use of the
volume/time formula.
Question 10
Convert 1.2 kg to grams.
A. 12 g
B. 120 g
C. 1,200 g
D. 12,000 g
Rationale:
One kilogram equals 1,000 grams. Multiplying 1.2 by 1,000 gives 1,200 grams. Metric
conversions are foundational for medication calculations. A safety check confirms no
extra zeros were added or omitted.
