HESI Dosage Calculations Practice Questions with Answers
Graded A+
A client with cardiogenic shock weighs 220 lb
and is receiving dopamine at the rate of 3 To change ml/hour to mcg/kg/minute, use the
mcg/kg/minute. The solution strength available is formula: desired rate (5 ml/hour) / volume
dopamine 400 mg in 250 ml of D5W. The nurse available (500 ml) x dose available (800 mg) = 8
should set the infusion pump to deliver how mg/hour. Next, convert milligrams/hour to
many ml/hour? (Enter numeric value only. If mcg/kg/minute: mg (8) x 1000 / kg (70) / 60
rounding is required, round to the nearest tenth.) minutes = 1.904 = 1.9 mcg/kg/minute.
- ANSWER -11.3
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1
kg = 100 kg. Next, calculate the dosage per A client is receiving an IV solution of sodium
minute, 3 mcg/kg/min x 100 kg = 300 mcg/min. chloride 0.9% (Normal Saline) 250 ml with
Convert mcg/min to mcg/hour, 300 mcg/min x 60 amiodarone (Cordarone) 1 gram at 17 ml/hour.
min=18,000 mcg/hour. Convert mcg/hr to How many mg/minute of amiodarone is infusing?
mg/hour, 18,000 mcg/hr = 18.0 mg/hour. (Enter numeric value only. If rounding is required,
Calculate the rate, 400 mg : 250 ml = 18 mg : X round to the nearest tenth.) - ANSWER -
ml 400X = 4500 X = 11.25 = 11.3 ml. So, 18 Convert grams to mg, 1 gram equals 1,000 mg.
mg/11.3 ml should be infused at 11.3 ml/hour. 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)
A client with hypertension who weighs 72.4 kg is divided by 60 minutes/hour 17 ml/hour x 4 mg/ml
receiving an infusion of nitroprusside (Nipride) 50 = 68/60 = 1.13 = 1.1 mg/minute.
mg in D5W 250 ml at 75 ml/hour. How many
mcg/kg/minute is the client receiving? (Enter
numeric value only. If rounding is required, round
to the nearest tenth.) - ANSWER -3.5 A client who weighs 176 pounds is receiving an
IV infusion with esmolol hydrochloride (Brevibloc)
Calculate the mg/hour infusing, 50 mg : 250 ml = at 48 ml/hour. The IV solution is labeled with the
X : 75 ml 250X = 3750 and X = 15 mg/hour. concentration of Brevibloc 10 mg/ml. How many
Next, convert mg/hr to mcg/hour, 15 mg/hour = 1 mcg/kg/minute is the client receiving? (Enter
mg / 1000 mcg = 15,000 mcg/hour, then divide numeric value only.) - ANSWER -100
by 60 min = 250 mcg/minute. Lastly, 250
mcg/72.4 kg/min = 3.45 = 3.5 mcg/kg/minute. Convert pounds to kg by dividing 176 pounds by
2.2 pounds = 80 kg. Convert the IV concentration
from mg to mcg. 1 mg : 1000 mcg :: 10 mg :
10,000 mcg. Infusion rate (48 ml/hour) x
A client who weighs 70 kg is receiving a concentration (10,000 mcg/ml) divided by 60
dopamine solution of 800 mg/500 ml normal minutes/hour x 80 kg = 48 x 10,000 divided by 60
saline at 5 ml/hour. How many mcg/kg/minute is x 80 = 480, = 100 mcg/kg/minute.
the client receiving? (Enter numeric value only. If
rounding is required, round to the nearest tenth.)
- ANSWER -1.9
The nurse is preparing the change-of-shift report
, HESI Dosage Calculations Practice Questions with Answers
Graded A+
for a client who has a 265 ml secondary infusion client already received one tablet today. How
that was started 2 hours ago at a rate of 85 many additional tablets should the nurse
ml/hour via an infusion pump. The nurse should administer so the client receives the total newly
report that how many ml remain to be infused by prescribed dose for the day? (Enter numeric
the on-coming nurse? (Enter numeric value value only.) - ANSWER -1
only.) - ANSWER -95
30 mg (total dose) - 15 mg (dose already
85 ml x 2 hours = 170 ml has infused. 265 ml administered) = 15 mg that still needs to be
(total amount to be infused) - 170 ml (amount administered. Using the Desired/Have formula:
infused) = 95 ml remain to be infused. 15 mg/15 mg = 1 tablet
A male client receives a prescription for At the end of the shift, the nurse is recording the
ondansetron hydrochloride (Zofran) 4 mg IV to fluid balance for a client receiving a continuous
prevent postoperative nausea after an inguinal gastrostomy tube (GT) feeding. Based on the
hernia repair. The medication is available in 2 client's records, how many ml should the nurse
mg/ml. How many ml should the nurse record for the total fluid balance (intake - output)
administer? (Enter numeric value only.) - for the shift that started at 0700 and ended at
ANSWER -2 1900? (Enter numeric value only.) (Click on each
image asset for additional information.) -
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ANSWER -695
ml 2X = 4 X = 2
The tube feeding is administered at 75 ml/hour
for 11 hours (0700 - 1800) and then turned off for
one hour because the residual is greater than
The nurse is preparing to administer Hepatitis B 200 ml. 11 hours x 75 ml/hr = 825 ml. Three
Vaccine, Recombinant (Energix-B) 5 mcg IM to a doses of 20 ml of medication are administered,
school-aged child. The vaccine is labeled, 10 with 10 ml of water used to flush the GT before
mcg/ml. How many ml should the nurse and after each dose. 20 ml x 3 doses = 60 ml; 10
administer? (Enter numeric value only. If ml (flush) x 2 x 3 doses = 60 ml; so 825 ml + 60
rounding is required, round to the nearest tenth). ml + 60 ml = 945 ml. 250 ml of residual is
- ANSWER -1 or 0.5 removed and not replaced. 945 ml - 250 ml = 695
ml total fluid balance (Intake - output).
Use ratio and proportion, 5 mcg : X ml :: 10 mcg :
1ml
10X = 5 X = 0.5 ml
The nurse is administering a 250 milliliter (ml)
intravenous solution to be infused over 2 hours.
How many ml/hour should the nurse program the
A client's daily PO prescription for aripiprazole infusion pump? (Enter numeric value only.) -
(Abilify) is increased from 15 mg to 30 mg. The ANSWER -125
medication is available in 15 mg tablets, and the
Graded A+
A client with cardiogenic shock weighs 220 lb
and is receiving dopamine at the rate of 3 To change ml/hour to mcg/kg/minute, use the
mcg/kg/minute. The solution strength available is formula: desired rate (5 ml/hour) / volume
dopamine 400 mg in 250 ml of D5W. The nurse available (500 ml) x dose available (800 mg) = 8
should set the infusion pump to deliver how mg/hour. Next, convert milligrams/hour to
many ml/hour? (Enter numeric value only. If mcg/kg/minute: mg (8) x 1000 / kg (70) / 60
rounding is required, round to the nearest tenth.) minutes = 1.904 = 1.9 mcg/kg/minute.
- ANSWER -11.3
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1
kg = 100 kg. Next, calculate the dosage per A client is receiving an IV solution of sodium
minute, 3 mcg/kg/min x 100 kg = 300 mcg/min. chloride 0.9% (Normal Saline) 250 ml with
Convert mcg/min to mcg/hour, 300 mcg/min x 60 amiodarone (Cordarone) 1 gram at 17 ml/hour.
min=18,000 mcg/hour. Convert mcg/hr to How many mg/minute of amiodarone is infusing?
mg/hour, 18,000 mcg/hr = 18.0 mg/hour. (Enter numeric value only. If rounding is required,
Calculate the rate, 400 mg : 250 ml = 18 mg : X round to the nearest tenth.) - ANSWER -
ml 400X = 4500 X = 11.25 = 11.3 ml. So, 18 Convert grams to mg, 1 gram equals 1,000 mg.
mg/11.3 ml should be infused at 11.3 ml/hour. 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)
A client with hypertension who weighs 72.4 kg is divided by 60 minutes/hour 17 ml/hour x 4 mg/ml
receiving an infusion of nitroprusside (Nipride) 50 = 68/60 = 1.13 = 1.1 mg/minute.
mg in D5W 250 ml at 75 ml/hour. How many
mcg/kg/minute is the client receiving? (Enter
numeric value only. If rounding is required, round
to the nearest tenth.) - ANSWER -3.5 A client who weighs 176 pounds is receiving an
IV infusion with esmolol hydrochloride (Brevibloc)
Calculate the mg/hour infusing, 50 mg : 250 ml = at 48 ml/hour. The IV solution is labeled with the
X : 75 ml 250X = 3750 and X = 15 mg/hour. concentration of Brevibloc 10 mg/ml. How many
Next, convert mg/hr to mcg/hour, 15 mg/hour = 1 mcg/kg/minute is the client receiving? (Enter
mg / 1000 mcg = 15,000 mcg/hour, then divide numeric value only.) - ANSWER -100
by 60 min = 250 mcg/minute. Lastly, 250
mcg/72.4 kg/min = 3.45 = 3.5 mcg/kg/minute. Convert pounds to kg by dividing 176 pounds by
2.2 pounds = 80 kg. Convert the IV concentration
from mg to mcg. 1 mg : 1000 mcg :: 10 mg :
10,000 mcg. Infusion rate (48 ml/hour) x
A client who weighs 70 kg is receiving a concentration (10,000 mcg/ml) divided by 60
dopamine solution of 800 mg/500 ml normal minutes/hour x 80 kg = 48 x 10,000 divided by 60
saline at 5 ml/hour. How many mcg/kg/minute is x 80 = 480, = 100 mcg/kg/minute.
the client receiving? (Enter numeric value only. If
rounding is required, round to the nearest tenth.)
- ANSWER -1.9
The nurse is preparing the change-of-shift report
, HESI Dosage Calculations Practice Questions with Answers
Graded A+
for a client who has a 265 ml secondary infusion client already received one tablet today. How
that was started 2 hours ago at a rate of 85 many additional tablets should the nurse
ml/hour via an infusion pump. The nurse should administer so the client receives the total newly
report that how many ml remain to be infused by prescribed dose for the day? (Enter numeric
the on-coming nurse? (Enter numeric value value only.) - ANSWER -1
only.) - ANSWER -95
30 mg (total dose) - 15 mg (dose already
85 ml x 2 hours = 170 ml has infused. 265 ml administered) = 15 mg that still needs to be
(total amount to be infused) - 170 ml (amount administered. Using the Desired/Have formula:
infused) = 95 ml remain to be infused. 15 mg/15 mg = 1 tablet
A male client receives a prescription for At the end of the shift, the nurse is recording the
ondansetron hydrochloride (Zofran) 4 mg IV to fluid balance for a client receiving a continuous
prevent postoperative nausea after an inguinal gastrostomy tube (GT) feeding. Based on the
hernia repair. The medication is available in 2 client's records, how many ml should the nurse
mg/ml. How many ml should the nurse record for the total fluid balance (intake - output)
administer? (Enter numeric value only.) - for the shift that started at 0700 and ended at
ANSWER -2 1900? (Enter numeric value only.) (Click on each
image asset for additional information.) -
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ANSWER -695
ml 2X = 4 X = 2
The tube feeding is administered at 75 ml/hour
for 11 hours (0700 - 1800) and then turned off for
one hour because the residual is greater than
The nurse is preparing to administer Hepatitis B 200 ml. 11 hours x 75 ml/hr = 825 ml. Three
Vaccine, Recombinant (Energix-B) 5 mcg IM to a doses of 20 ml of medication are administered,
school-aged child. The vaccine is labeled, 10 with 10 ml of water used to flush the GT before
mcg/ml. How many ml should the nurse and after each dose. 20 ml x 3 doses = 60 ml; 10
administer? (Enter numeric value only. If ml (flush) x 2 x 3 doses = 60 ml; so 825 ml + 60
rounding is required, round to the nearest tenth). ml + 60 ml = 945 ml. 250 ml of residual is
- ANSWER -1 or 0.5 removed and not replaced. 945 ml - 250 ml = 695
ml total fluid balance (Intake - output).
Use ratio and proportion, 5 mcg : X ml :: 10 mcg :
1ml
10X = 5 X = 0.5 ml
The nurse is administering a 250 milliliter (ml)
intravenous solution to be infused over 2 hours.
How many ml/hour should the nurse program the
A client's daily PO prescription for aripiprazole infusion pump? (Enter numeric value only.) -
(Abilify) is increased from 15 mg to 30 mg. The ANSWER -125
medication is available in 15 mg tablets, and the
