HESI Dosage Calculations Practice
Exam 2024-2025. Real Questions &
Correct Answers. Graded A+
0.9% normal saline with inamrinone (Inocor) 0.1 grams/100 ml is prescribed for a client
with heart failure. The medication is to be delivered at a rate of 400 mcg/minute. The
nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric
value only. If rounding is required, round to the nearest whole number.) - ANS24
First calculate the number of mcg/hour: 400 mcg x 60 minutes = 24000 mcg/hour. Next
calculate the number of ml/hour needed to administer 24,000 mcg/hour: 100,000 mcg:
100ml :: 24,000 mcg : X 100,000/24,000 :: 100/X 100,000X = 2,400,000 X = 24 ml/hour.
A 180-pound adult male is admitted to the Emergency Center after receiving thermal
burns to 60 percent of his body. Using the Parkland formula of 4 ml/kg/24 hours, the
client should receive how many ml of fluid during the first 24 hours? (Enter numeric
value only. If rounding is required, round to the nearest whole number.) - ANS19632
Using the Parkland formula, the client's fluid requirements for the first 24 hours after
injury: 4 ml lactated Ringer's solution x Body weight (in kilograms) x Percent burn.
Convert 180 pounds to kg = .2 = 81.8 kg 4 ml x 81.8 kg x 60 = 19632 ml over the
first 24 hours.
A child who is scheduled for a kidney transplant receives a prescription for basiliximab
(Simulect) 20 mg IV 2 hours prior to surgery. The medication is available in a 20 mg vial
that is reconstituted by adding 5 ml sterile water for injection, and administered in a 50
ml bag of normal saline over 30 minutes. The nurse should program the infusion pump
to deliver how many ml/hour? (Enter numeric value only. - ANS110
After reconstituting the medication vial, the nurse adds the 5 ml of medication to the 50
ml of sterile water to result in a 55 ml volume to infuse in 30 minutes. Using the formula,
Volume/Time = 55 ml / 0.5 hours = 110 ml/hour
A child who weighs 55 pounds receives a prescription for atovaquone with proguanil
(Malarone Pediatric) 125 mg/50 mg PO daily. A drug reference states that children 11 to
20 kg should receive 1 pediatric tablet daily; 21 to 30 kg should receive 2 pediatric
tablets daily; 31 to 40 kg should receive 3 pediatric tablets daily; and greater than 40 kg
should receive 1 adult tablet daily with food. The drug is available as atovaquone 62.5
mg/proguanil 25 mg pediatric tablets. How many tablets should the nurse administer? -
ANS2
, Calculate each drug component dose, using the formula, D/H 125 mg / 62.5 mg
(atovaquone) = 2 combined with 50 mg / 25 mg (proguanil) = 2. The child should
receive 2 tablets.
A child with a urinary tract infection is receiving Cephalexin (Keflex) 100 mg suspension
PO QID. Keflex oral suspension is labeled 125 mg in 5 ml. How many ml should the
nurse administer? (Enter numeric value only. If rounding is required, round to the
nearest tenth.) - ANS4
Using the formula Desired/Have available x Quantity: 100/125 x 5 = 500/125 = 4 ml
A client experiencing cardiogenic shock receives a prescription for an IV infusion of
0.9% normal saline with milrinone (Primacor) 10 mg in 100 ml at a rate of 46
mcg/minute. The nurse should program the infusion pump to deliver how many ml/hour?
(Enter numeric value only. If rounding is required, round to the nearest whole number.) -
ANS28
First calculate the number of mcg/hour: 46 mcg x 60 minutes = 2760 mcg/hour. Next
calculate the number of ml/hour needed to administer 2760 mcg/hour: 10,000 mcg : 100
ml :: 2760 mcg : X 10, :: 100 / X 10,000X = 276000 X = 27.6 (rounded to) 28
ml/hour.
A client has a prescription for inamrinone (Inocor) 0.75 mg/kg IV bolus to be delivered
over 3 minutes. The client weighs 80 kg. Inamrinone is available for injection 100 mg/20
ml. How many ml of inamrinone should the nurse administer? (Enter numeric value
only. If rounding is required, round to the nearest tenth.) - ANS12
First calculate the mg/kg dosage needed: 0.75 mg x 80 kg = 60 mg needed. Then
calculate Desired / Have x ml 60 mg / 100 mg x 20 ml = 12 ml.
A client is receiving alprazolam (Xanax) 0.75 mg PO BID for anxiety. Alprazolam is
available in 0.5 mg scored tablets. How many tablets should the nurse administer?
(Enter numeric value only.) - ANS1.5
Using the conversion of 1 gram = 1000 mg: 0.1 gram = 100 mg 100 mg = 1 capsule
A client is receiving an IV solution of sodium chloride 0.9% (Normal Saline) 250 ml with
amiodarone (Cordarone) 1 gram at 17 ml/hour. How many mg/minute of amiodarone is
infusing? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
- ANSConvert grams to mg, 1 gram equals 1,000 mg. Using ratio and proportion - 1,000
mg : 250 ml :: X mg : 1ml 250X= 1,000 so X = 4 mg/ml is the solution concentration of
amiodarone. The infusion rate (ml/hour) x concentration (mg/ml) divided by 60
minutes/hour 17 ml/hour x 4 mg/ml = 68/60 = 1.13 = 1.1 mg/minute.
A client is receiving dantrolene sodium (Dantrium) PO for malignant hyperthermia. The
maximum safe dose is 8 mg/kg/day in 4 divided doses. The client currently weighs 48.5
Exam 2024-2025. Real Questions &
Correct Answers. Graded A+
0.9% normal saline with inamrinone (Inocor) 0.1 grams/100 ml is prescribed for a client
with heart failure. The medication is to be delivered at a rate of 400 mcg/minute. The
nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric
value only. If rounding is required, round to the nearest whole number.) - ANS24
First calculate the number of mcg/hour: 400 mcg x 60 minutes = 24000 mcg/hour. Next
calculate the number of ml/hour needed to administer 24,000 mcg/hour: 100,000 mcg:
100ml :: 24,000 mcg : X 100,000/24,000 :: 100/X 100,000X = 2,400,000 X = 24 ml/hour.
A 180-pound adult male is admitted to the Emergency Center after receiving thermal
burns to 60 percent of his body. Using the Parkland formula of 4 ml/kg/24 hours, the
client should receive how many ml of fluid during the first 24 hours? (Enter numeric
value only. If rounding is required, round to the nearest whole number.) - ANS19632
Using the Parkland formula, the client's fluid requirements for the first 24 hours after
injury: 4 ml lactated Ringer's solution x Body weight (in kilograms) x Percent burn.
Convert 180 pounds to kg = .2 = 81.8 kg 4 ml x 81.8 kg x 60 = 19632 ml over the
first 24 hours.
A child who is scheduled for a kidney transplant receives a prescription for basiliximab
(Simulect) 20 mg IV 2 hours prior to surgery. The medication is available in a 20 mg vial
that is reconstituted by adding 5 ml sterile water for injection, and administered in a 50
ml bag of normal saline over 30 minutes. The nurse should program the infusion pump
to deliver how many ml/hour? (Enter numeric value only. - ANS110
After reconstituting the medication vial, the nurse adds the 5 ml of medication to the 50
ml of sterile water to result in a 55 ml volume to infuse in 30 minutes. Using the formula,
Volume/Time = 55 ml / 0.5 hours = 110 ml/hour
A child who weighs 55 pounds receives a prescription for atovaquone with proguanil
(Malarone Pediatric) 125 mg/50 mg PO daily. A drug reference states that children 11 to
20 kg should receive 1 pediatric tablet daily; 21 to 30 kg should receive 2 pediatric
tablets daily; 31 to 40 kg should receive 3 pediatric tablets daily; and greater than 40 kg
should receive 1 adult tablet daily with food. The drug is available as atovaquone 62.5
mg/proguanil 25 mg pediatric tablets. How many tablets should the nurse administer? -
ANS2
, Calculate each drug component dose, using the formula, D/H 125 mg / 62.5 mg
(atovaquone) = 2 combined with 50 mg / 25 mg (proguanil) = 2. The child should
receive 2 tablets.
A child with a urinary tract infection is receiving Cephalexin (Keflex) 100 mg suspension
PO QID. Keflex oral suspension is labeled 125 mg in 5 ml. How many ml should the
nurse administer? (Enter numeric value only. If rounding is required, round to the
nearest tenth.) - ANS4
Using the formula Desired/Have available x Quantity: 100/125 x 5 = 500/125 = 4 ml
A client experiencing cardiogenic shock receives a prescription for an IV infusion of
0.9% normal saline with milrinone (Primacor) 10 mg in 100 ml at a rate of 46
mcg/minute. The nurse should program the infusion pump to deliver how many ml/hour?
(Enter numeric value only. If rounding is required, round to the nearest whole number.) -
ANS28
First calculate the number of mcg/hour: 46 mcg x 60 minutes = 2760 mcg/hour. Next
calculate the number of ml/hour needed to administer 2760 mcg/hour: 10,000 mcg : 100
ml :: 2760 mcg : X 10, :: 100 / X 10,000X = 276000 X = 27.6 (rounded to) 28
ml/hour.
A client has a prescription for inamrinone (Inocor) 0.75 mg/kg IV bolus to be delivered
over 3 minutes. The client weighs 80 kg. Inamrinone is available for injection 100 mg/20
ml. How many ml of inamrinone should the nurse administer? (Enter numeric value
only. If rounding is required, round to the nearest tenth.) - ANS12
First calculate the mg/kg dosage needed: 0.75 mg x 80 kg = 60 mg needed. Then
calculate Desired / Have x ml 60 mg / 100 mg x 20 ml = 12 ml.
A client is receiving alprazolam (Xanax) 0.75 mg PO BID for anxiety. Alprazolam is
available in 0.5 mg scored tablets. How many tablets should the nurse administer?
(Enter numeric value only.) - ANS1.5
Using the conversion of 1 gram = 1000 mg: 0.1 gram = 100 mg 100 mg = 1 capsule
A client is receiving an IV solution of sodium chloride 0.9% (Normal Saline) 250 ml with
amiodarone (Cordarone) 1 gram at 17 ml/hour. How many mg/minute of amiodarone is
infusing? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
- ANSConvert grams to mg, 1 gram equals 1,000 mg. Using ratio and proportion - 1,000
mg : 250 ml :: X mg : 1ml 250X= 1,000 so X = 4 mg/ml is the solution concentration of
amiodarone. The infusion rate (ml/hour) x concentration (mg/ml) divided by 60
minutes/hour 17 ml/hour x 4 mg/ml = 68/60 = 1.13 = 1.1 mg/minute.
A client is receiving dantrolene sodium (Dantrium) PO for malignant hyperthermia. The
maximum safe dose is 8 mg/kg/day in 4 divided doses. The client currently weighs 48.5
