HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
1. A(UPDATED TO PASS)
client with cardiogenic
11.3
shock weighs 220 lb and
is receiv- ing dopamine at
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1
the rate of
kg = 100 kg. Next, calculate the dosage per
3 mcg/kg/minute. The
minute, 3 mcg/kg/min x 100 kg = 300 mcg/min.
solution strength available
Convert mcg/min to mcg/hour, 300 mcg/min x 60
is dopamine 400 mg in 250
min=18,000 mcg/hour. Convert mcg/hr to
ml of D5W.
mg/hour, 18,000 mcg/hr = 18.0 mg/hour.
The nurse should set the
Calculate the rate, 400 mg : 250 ml = 18 mg
infu- sion pump to deliver
how many : X ml 400X = 4500 X = 11.25 = 11.3 ml. So, 18
mg/11.3
ml/hour? (Enter numeric
value
only. If rounding is required, round ml should be infused at 11.3 ml/hour.
to the nearest tenth.)
2. A client with hypertension 3.5
who weighs 72.4 kg is
receiving an infu- sion of Calculate the mg/hour infusing, 50 mg : 250 ml
nitroprusside (Nipride) 50 = X : 75 ml 250X = 3750 and X = 15 mg/hour.
mg in D5W 250 ml at 75 Next, con- vert mg/hr to mcg/hour, 15 mg/hour
ml/hour. How many = 1 mg / 1000 mcg = 15,000 mcg/hour, then
mcg/kg/minute is the client divide by 60 min = 250
receiving? (Enter numeric
value only. If rounding is required, mcg/minute. Lastly, 250 mcg/72.4 kg/min =
3.45 = 3.5
round to the nearest ml/hour. How many
tenth.)
3. A client who weighs 70 kg
is receiving a dopamine
solu- tion of 800 mg/500
ml normal saline at 5
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
mcg/kg/(UPDATED TO PASS) To change ml/hour to mcg/kg/minute, use the
formula:
minute. 1.9 desired rate (5 ml/hour) / volume available (500
ml)
mcg/kg/minute is the client receiv- x dose available (800 mg) = 8 mg/hour.
Next, convert
ing? (Enter numeric value milligrams/hour to mcg/kg/minute: mg (8) x 1000
only. If / kg
rounding is required, round to the (70) / 60 minutes = 1.904 = 1.9
mcg/kg/minute.
nearest tenth.)
4. A client is receiving an IV Convert grams to mg, 1 gram equals 1,000 mg.
solution of sodium chloride
Using ratio and proportion - 1,000 mg : 250 ml ::
0.9% (Normal
X mg : 1ml
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
(UPDATED
Saline) 250 mlTO
withPASS) 250X= 1,000 so X = 4 mg/ml is the solution
amiodarone (Cordarone) 1 concentration of amiodarone. The infusion rate
gram at 17 ml/hour. How (ml/hour) x concentra- tion (mg/ml) divided by 60
many mg/minute of amio- minutes/hour 17 ml/hour x
darone is infusing? (Enter numeric 4 mg/ml = 68/60 = 1.13 = 1.1
mg/minute.
value only. If rounding is
required, round to the nearest
tenth.)
5. A client who weighs 176 100
pounds is receiving an IV
infusion with es- molol Convert pounds to kg by dividing 176 pounds by
hydrochloride (Brevibloc) at 48 2.2 pounds = 80 kg. Convert the IV concentration
ml/hour. The IV solution is from mg to mcg. 1 mg : 1000 mcg :: 10 mg :
la- beled with the 10,000 mcg. Infusion rate (48 ml/hour) x
concentration of Brevibloc concentration (10,000 mcg/ml) di-
10 mg/ml. How many
mcg/kg/minute is the client receiv- vided by 60 minutes/hour x 80 kg = 48 x
10,000 divided
ing? (Enter numeric value nurse? (Enter numeric value
only.) only.)
6. The nurse is preparing the 7. A male client receives a
change-of-shift report for a prescrip- tion for
client who has a 265 ml ondansetron hydrochlo- ride
secondary in- fusion that (Zofran) 4 mg IV to prevent
was started 2 hours ago at a postoperative nausea after an
rate of 85 ml/hour via an in- guinal hernia repair. The
infusion pump. The nurse medica- tion is available in 2
should report that how mg/ml. How
many ml remain to be
infused by the on-coming
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
by 60 (UPDATED
x 80 = 480,
TO=PASS)
100
mcg/kg/minute.
95
85 ml x 2 hours = 170 ml has infused. 265 ml
(total amount to be infused) - 170 ml (amount
infused) = 95 ml remain to be infused.
2
Use ratio and proportion, 4 mg : X ml = 2 mg : 1
ml 2X = 4 X = 2
WITH ALL CORRECT & VERIFIED ANSWERS
1. A(UPDATED TO PASS)
client with cardiogenic
11.3
shock weighs 220 lb and
is receiv- ing dopamine at
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1
the rate of
kg = 100 kg. Next, calculate the dosage per
3 mcg/kg/minute. The
minute, 3 mcg/kg/min x 100 kg = 300 mcg/min.
solution strength available
Convert mcg/min to mcg/hour, 300 mcg/min x 60
is dopamine 400 mg in 250
min=18,000 mcg/hour. Convert mcg/hr to
ml of D5W.
mg/hour, 18,000 mcg/hr = 18.0 mg/hour.
The nurse should set the
Calculate the rate, 400 mg : 250 ml = 18 mg
infu- sion pump to deliver
how many : X ml 400X = 4500 X = 11.25 = 11.3 ml. So, 18
mg/11.3
ml/hour? (Enter numeric
value
only. If rounding is required, round ml should be infused at 11.3 ml/hour.
to the nearest tenth.)
2. A client with hypertension 3.5
who weighs 72.4 kg is
receiving an infu- sion of Calculate the mg/hour infusing, 50 mg : 250 ml
nitroprusside (Nipride) 50 = X : 75 ml 250X = 3750 and X = 15 mg/hour.
mg in D5W 250 ml at 75 Next, con- vert mg/hr to mcg/hour, 15 mg/hour
ml/hour. How many = 1 mg / 1000 mcg = 15,000 mcg/hour, then
mcg/kg/minute is the client divide by 60 min = 250
receiving? (Enter numeric
value only. If rounding is required, mcg/minute. Lastly, 250 mcg/72.4 kg/min =
3.45 = 3.5
round to the nearest ml/hour. How many
tenth.)
3. A client who weighs 70 kg
is receiving a dopamine
solu- tion of 800 mg/500
ml normal saline at 5
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
mcg/kg/(UPDATED TO PASS) To change ml/hour to mcg/kg/minute, use the
formula:
minute. 1.9 desired rate (5 ml/hour) / volume available (500
ml)
mcg/kg/minute is the client receiv- x dose available (800 mg) = 8 mg/hour.
Next, convert
ing? (Enter numeric value milligrams/hour to mcg/kg/minute: mg (8) x 1000
only. If / kg
rounding is required, round to the (70) / 60 minutes = 1.904 = 1.9
mcg/kg/minute.
nearest tenth.)
4. A client is receiving an IV Convert grams to mg, 1 gram equals 1,000 mg.
solution of sodium chloride
Using ratio and proportion - 1,000 mg : 250 ml ::
0.9% (Normal
X mg : 1ml
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
(UPDATED
Saline) 250 mlTO
withPASS) 250X= 1,000 so X = 4 mg/ml is the solution
amiodarone (Cordarone) 1 concentration of amiodarone. The infusion rate
gram at 17 ml/hour. How (ml/hour) x concentra- tion (mg/ml) divided by 60
many mg/minute of amio- minutes/hour 17 ml/hour x
darone is infusing? (Enter numeric 4 mg/ml = 68/60 = 1.13 = 1.1
mg/minute.
value only. If rounding is
required, round to the nearest
tenth.)
5. A client who weighs 176 100
pounds is receiving an IV
infusion with es- molol Convert pounds to kg by dividing 176 pounds by
hydrochloride (Brevibloc) at 48 2.2 pounds = 80 kg. Convert the IV concentration
ml/hour. The IV solution is from mg to mcg. 1 mg : 1000 mcg :: 10 mg :
la- beled with the 10,000 mcg. Infusion rate (48 ml/hour) x
concentration of Brevibloc concentration (10,000 mcg/ml) di-
10 mg/ml. How many
mcg/kg/minute is the client receiv- vided by 60 minutes/hour x 80 kg = 48 x
10,000 divided
ing? (Enter numeric value nurse? (Enter numeric value
only.) only.)
6. The nurse is preparing the 7. A male client receives a
change-of-shift report for a prescrip- tion for
client who has a 265 ml ondansetron hydrochlo- ride
secondary in- fusion that (Zofran) 4 mg IV to prevent
was started 2 hours ago at a postoperative nausea after an
rate of 85 ml/hour via an in- guinal hernia repair. The
infusion pump. The nurse medica- tion is available in 2
should report that how mg/ml. How
many ml remain to be
infused by the on-coming
, HESI DOSAGE CALCULATIONS PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS
by 60 (UPDATED
x 80 = 480,
TO=PASS)
100
mcg/kg/minute.
95
85 ml x 2 hours = 170 ml has infused. 265 ml
(total amount to be infused) - 170 ml (amount
infused) = 95 ml remain to be infused.
2
Use ratio and proportion, 4 mg : X ml = 2 mg : 1
ml 2X = 4 X = 2
