HESI / TEAS Math Calculations Exam Study Guide 2026 PDF for Nursing
and Allied Health Students | Dosage Calculations, Conversions, Fractions,
Decimals, Ratios, Proportions, and Medication Math | Comprehensive
Math Exam Preparation to Improve Accuracy, Critical Thinking, and Test
Performance for HESI and TEAS Assessments
,Question 1:
A physician orders 500 mg of medication to be administered. The medication is
available in 250 mg tablets. How many tablets should be given?
• A) 1
• B) 2
• C) 3
• D) 4
Correct Option: B) 2
Rationale:
To determine how many tablets to give, divide the total dosage required by the dosage
per tablet:
Total dose 500 mg
Number of tablets = = =2
Dose per tablet 250 mg
You need to administer 2 tablets to achieve the total of 500 mg.
Question 2:
A nurse needs to convert 2.5 liters to milliliters. How many milliliters will the nurse
calculate?
• A) 25
• B) 250
• C) 2500
• D) 5000
Correct Option: C) 2500
Rationale:
To convert liters to milliliters, multiply by 1000, since there are 1000 milliliters in one
liter:
Milliliters = 2.5 L × 1000 = 2500 mL
Thus, 2.5 liters is equivalent to 2500 milliliters.
Question 3:
, A medication order reads “Administer 1.2 g of drug A.” How many milligrams is this?
• A) 1200 mg
• B) 12 mg
• C) 1200
• D) 1.2 mg
Correct Option: A) 1200 mg
Rationale:
To convert grams to milligrams, multiply by 1000, as there are 1000 milligrams in a gram:
Milligrams = 1.2 g × 1000 = 1200 mg
Therefore, 1.2 grams is equal to 1200 milligrams.
Question 4:
If a patient is prescribed a medication that requires a dosage of 10 mg/kg, and the
patient weighs 70 kg, what is the total dosage prescribed?
• A) 700 mg
• B) 700
• C) 70 mg
• D) 10 mg
Correct Option: B) 700 mg
Rationale:
To calculate the total dosage, multiply the dosage per kilogram by the patient's weight:
Total dosage = 10 mg/kg × 70 kg = 700 mg
Thus, the total dosage prescribed is 700 mg.
Question 5:
A suitable dosage of insulin is 0.5 units per kilogram of body weight. If a patient weighs
80 kg, how many units of insulin should be administered?
• A) 30 units
• B) 35 units
and Allied Health Students | Dosage Calculations, Conversions, Fractions,
Decimals, Ratios, Proportions, and Medication Math | Comprehensive
Math Exam Preparation to Improve Accuracy, Critical Thinking, and Test
Performance for HESI and TEAS Assessments
,Question 1:
A physician orders 500 mg of medication to be administered. The medication is
available in 250 mg tablets. How many tablets should be given?
• A) 1
• B) 2
• C) 3
• D) 4
Correct Option: B) 2
Rationale:
To determine how many tablets to give, divide the total dosage required by the dosage
per tablet:
Total dose 500 mg
Number of tablets = = =2
Dose per tablet 250 mg
You need to administer 2 tablets to achieve the total of 500 mg.
Question 2:
A nurse needs to convert 2.5 liters to milliliters. How many milliliters will the nurse
calculate?
• A) 25
• B) 250
• C) 2500
• D) 5000
Correct Option: C) 2500
Rationale:
To convert liters to milliliters, multiply by 1000, since there are 1000 milliliters in one
liter:
Milliliters = 2.5 L × 1000 = 2500 mL
Thus, 2.5 liters is equivalent to 2500 milliliters.
Question 3:
, A medication order reads “Administer 1.2 g of drug A.” How many milligrams is this?
• A) 1200 mg
• B) 12 mg
• C) 1200
• D) 1.2 mg
Correct Option: A) 1200 mg
Rationale:
To convert grams to milligrams, multiply by 1000, as there are 1000 milligrams in a gram:
Milligrams = 1.2 g × 1000 = 1200 mg
Therefore, 1.2 grams is equal to 1200 milligrams.
Question 4:
If a patient is prescribed a medication that requires a dosage of 10 mg/kg, and the
patient weighs 70 kg, what is the total dosage prescribed?
• A) 700 mg
• B) 700
• C) 70 mg
• D) 10 mg
Correct Option: B) 700 mg
Rationale:
To calculate the total dosage, multiply the dosage per kilogram by the patient's weight:
Total dosage = 10 mg/kg × 70 kg = 700 mg
Thus, the total dosage prescribed is 700 mg.
Question 5:
A suitable dosage of insulin is 0.5 units per kilogram of body weight. If a patient weighs
80 kg, how many units of insulin should be administered?
• A) 30 units
• B) 35 units
