HESI Dosage Calculations Practice Exam,
Hesi Pharmacology Review -questions with
verified answers
A client with cardiogenic shock weighs 220 lb and is receiving
dopamine at the rate of 3 mcg/kg/minute. The solution strength
available is dopamine 400 mg in 250 ml of D5W. The nurse should
set the infusion pump to deliver how many ml/hour? (Enter
numeric value only. If rounding is required, round to the nearest
tenth.) - CORRECT ANSWERS ✔✔11.3
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1 kg = 100 kg. Next,
calculate the dosage per minute, 3 mcg/kg/min x 100 kg = 300
mcg/min. Convert mcg/min to mcg/hour, 300 mcg/min x 60
min=18,000 mcg/hour. Convert mcg/hr to mg/hour, 18,000 mcg/hr
= 18.0 mg/hour. Calculate the rate, 400 mg : 250 ml = 18 mg : X ml
400X = 4500 X = 11.25 = 11.3 ml. So, 18 mg/11.3 ml should be
infused at 11.3 ml/hour.
A client with hypertension who weighs 72.4 kg is receiving an
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,infusion of nitroprusside (Nipride) 50 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.) - CORRECT ANSWERS ✔✔3.5
Calculate the mg/hour infusing, 50 mg : 250 ml = X : 75 ml 250X =
3750 and X = 15 mg/hour. Next, convert mg/hr to mcg/hour, 15
mg/hour = 1 mg / 1000 mcg = 15,000 mcg/hour, then divide by 60
min = 250 mcg/minute. Lastly, 250 mcg/72.4 kg/min = 3.45 = 3.5
mcg/kg/minute.
A client who weighs 70 kg is receiving a dopamine solution of 800
mg/500 ml normal saline at 5 ml/hour. How many mcg/kg/minute
is the client receiving? (Enter numeric value only. If rounding is
required, round to the nearest tenth.) - CORRECT ANSWERS
✔✔1.9
To change ml/hour to mcg/kg/minute, use the formula: desired
rate (5 ml/hour) / volume available (500 ml) x dose available (800
mg) = 8 mg/hour. Next, convert milligrams/hour to
mcg/kg/minute: mg (8) x 1000 / kg (70) / 60 minutes = 1.904 = 1.9
2/
125
,mcg/kg/minute.
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.) - CORRECT ANSWERS ✔✔Convert 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 who weighs 176 pounds is receiving an IV infusion with
esmolol hydrochloride (Brevibloc) at 48 ml/hour. The IV solution is
labeled with the concentration of Brevibloc 10 mg/ml. How many
mcg/kg/minute is the client receiving? (Enter numeric value only.)
- CORRECT ANSWERS ✔✔100
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
3/
125
, mcg :: 10 mg : 10,000 mcg. Infusion rate (48 ml/hour) x
concentration (10,000 mcg/ml) divided by 60 minutes/hour x 80 kg
= 48 x 10,000 divided by 60 x 80 = 480, = 100
mcg/kg/minute.
The nurse is preparing the change-of-shift report for a client who
has a 265 ml secondary infusion that was started 2 hours ago at a
rate of 85 ml/hour via an infusion pump. The nurse should report
that how many ml remain to be infused by the on-coming nurse?
(Enter numeric value only.) - CORRECT ANSWERS ✔✔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.
A male client receives a prescription for ondansetron hydrochloride
(Zofran) 4 mg IV to prevent postoperative nausea after an inguinal
hernia repair. The medication is available in 2 mg/ml. How many
ml should the nurse administer? (Enter numeric value only.) -
CORRECT ANSWERS ✔✔2
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ml 2X = 4 X = 2
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125
Hesi Pharmacology Review -questions with
verified answers
A client with cardiogenic shock weighs 220 lb and is receiving
dopamine at the rate of 3 mcg/kg/minute. The solution strength
available is dopamine 400 mg in 250 ml of D5W. The nurse should
set the infusion pump to deliver how many ml/hour? (Enter
numeric value only. If rounding is required, round to the nearest
tenth.) - CORRECT ANSWERS ✔✔11.3
First, convert pounds to kg, 220 lb : X = 2.2 lb : 1 kg = 100 kg. Next,
calculate the dosage per minute, 3 mcg/kg/min x 100 kg = 300
mcg/min. Convert mcg/min to mcg/hour, 300 mcg/min x 60
min=18,000 mcg/hour. Convert mcg/hr to mg/hour, 18,000 mcg/hr
= 18.0 mg/hour. Calculate the rate, 400 mg : 250 ml = 18 mg : X ml
400X = 4500 X = 11.25 = 11.3 ml. So, 18 mg/11.3 ml should be
infused at 11.3 ml/hour.
A client with hypertension who weighs 72.4 kg is receiving an
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125
,infusion of nitroprusside (Nipride) 50 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.) - CORRECT ANSWERS ✔✔3.5
Calculate the mg/hour infusing, 50 mg : 250 ml = X : 75 ml 250X =
3750 and X = 15 mg/hour. Next, convert mg/hr to mcg/hour, 15
mg/hour = 1 mg / 1000 mcg = 15,000 mcg/hour, then divide by 60
min = 250 mcg/minute. Lastly, 250 mcg/72.4 kg/min = 3.45 = 3.5
mcg/kg/minute.
A client who weighs 70 kg is receiving a dopamine solution of 800
mg/500 ml normal saline at 5 ml/hour. How many mcg/kg/minute
is the client receiving? (Enter numeric value only. If rounding is
required, round to the nearest tenth.) - CORRECT ANSWERS
✔✔1.9
To change ml/hour to mcg/kg/minute, use the formula: desired
rate (5 ml/hour) / volume available (500 ml) x dose available (800
mg) = 8 mg/hour. Next, convert milligrams/hour to
mcg/kg/minute: mg (8) x 1000 / kg (70) / 60 minutes = 1.904 = 1.9
2/
125
,mcg/kg/minute.
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.) - CORRECT ANSWERS ✔✔Convert 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 who weighs 176 pounds is receiving an IV infusion with
esmolol hydrochloride (Brevibloc) at 48 ml/hour. The IV solution is
labeled with the concentration of Brevibloc 10 mg/ml. How many
mcg/kg/minute is the client receiving? (Enter numeric value only.)
- CORRECT ANSWERS ✔✔100
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
3/
125
, mcg :: 10 mg : 10,000 mcg. Infusion rate (48 ml/hour) x
concentration (10,000 mcg/ml) divided by 60 minutes/hour x 80 kg
= 48 x 10,000 divided by 60 x 80 = 480, = 100
mcg/kg/minute.
The nurse is preparing the change-of-shift report for a client who
has a 265 ml secondary infusion that was started 2 hours ago at a
rate of 85 ml/hour via an infusion pump. The nurse should report
that how many ml remain to be infused by the on-coming nurse?
(Enter numeric value only.) - CORRECT ANSWERS ✔✔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.
A male client receives a prescription for ondansetron hydrochloride
(Zofran) 4 mg IV to prevent postoperative nausea after an inguinal
hernia repair. The medication is available in 2 mg/ml. How many
ml should the nurse administer? (Enter numeric value only.) -
CORRECT ANSWERS ✔✔2
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ml 2X = 4 X = 2
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125
