BSN 215 Dosage Calculation
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1. A client with cardiogenic shock 11.3
weighs 220 lb and is receiv-
ing dopamine at the rate of First, convert pounds to kg
3 mcg/kg/minute. The solution 220 lb : X = 2.2 lb : 1 kg
strength available is dopamine 400 = 100 kg.
mg in 250 ml of D5W. The nurse
Next, calculate the dosage per minute,
should set the infusion pump to de-
3 mcg/kg/min x 100 kg
liver how many ml/hour? (Enter nu-
= 300 mcg/min.
meric value only. If rounding is re-
quired, round to the nearest tenth.)
3(100kg) =300
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
= 400 mg 18 mg
_____________ = ___________
250mL x mL
=400X = 4500
X = 11.25
= 11.3 ml.
So, 18 mg/11.3 ml should be infused at 11.3 ml/hour.
2. A client with hypertension who 3.5
weighs 72.4 kg is receiving an in-
fusion of nitroprusside (Nipride) 50 Calculate the mg/hour infusing,
, BSN 215 Dosage Calculation
Study online at https://quizlet.com/_hjl6ex
mg in D5W 250 ml at 75 ml/hour. 50 mg : 250 ml = X : 75 ml
How many mcg/kg/minute is the
client receiving? (Enter numeric val- =250X = 3750 and X = 15 mg/hour.
ue only. If rounding is required,
Next, convert mg/hr to mcg/hour
round to the nearest tenth.)
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.
3. A client who weighs 70 kg is re- 1.9
ceiving a dopamine solution of
800 mg/500 ml normal saline at 5 To change ml/hour to mcg/kg/minute, use the formu-
ml/hour. How many mcg/kg/minute la: desired rate (5 ml/hour) / volume available (500 ml)
is the client receiving? (Enter numer- x dose available (800 mg)
ic value only. If rounding is required,
= 8 mg/hour.
round to the nearest tenth.)
Next, convert milligrams/hour to mcg/kg/minute:
mg (8) x 1000 / kg (70) / 60 minutes
= 1.904
= 1.9 mcg/kg/minute.
4. A client is receiving an IV solu- 1.1
tion of sodium chloride 0.9% (Nor-
mal Saline) 250 ml with amiodarone Convert grams to mg, 1 gram equals 1,000 mg.
(Cordarone) 1 gram at 17 ml/hour.
Using ratio and proportion
How many mg/minute of amio-
, BSN 215 Dosage Calculation
Study online at https://quizlet.com/_hjl6ex
darone is infusing? (Enter numeric 1,000 mg : 250 ml :: X mg : 1ml
value only. If rounding is required, 1000mg/250 mL = X mg/ 1 ml
round to the nearest tenth.)
=250X= 1,000
so X = 4 mg/ml is the solution concentration of amio-
darone.
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.
5. A client who weighs 176 pounds 100
is receiving an IV infusion with es-
molol hydrochloride (Brevibloc) at Convert pounds to kg by dividing 176 pounds by 2.2
48 ml/hour. The IV solution is la- pounds = 80 kg.
beled with the concentration of
Convert the IV concentration from mg to mcg.
Brevibloc 10 mg/ml. How many
1 mg : 1000 mcg :: 10 mg : 10,000 mcg.
mcg/kg/minute is the client receiv-
ing? (Enter numeric value only.)
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.
6. The nurse is preparing the 95
change-of-shift report for a client
who has a 265 ml secondary infu- 85 ml x 2 hours = 170 ml has infused.
sion that was started 2 hours ago at
265 ml (total amount to be infused) - 170 ml (amount
a rate of 85 ml/hour via an infusion
infused) = 95 ml remain to be infused.
Study online at https://quizlet.com/_hjl6ex
1. A client with cardiogenic shock 11.3
weighs 220 lb and is receiv-
ing dopamine at the rate of First, convert pounds to kg
3 mcg/kg/minute. The solution 220 lb : X = 2.2 lb : 1 kg
strength available is dopamine 400 = 100 kg.
mg in 250 ml of D5W. The nurse
Next, calculate the dosage per minute,
should set the infusion pump to de-
3 mcg/kg/min x 100 kg
liver how many ml/hour? (Enter nu-
= 300 mcg/min.
meric value only. If rounding is re-
quired, round to the nearest tenth.)
3(100kg) =300
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
= 400 mg 18 mg
_____________ = ___________
250mL x mL
=400X = 4500
X = 11.25
= 11.3 ml.
So, 18 mg/11.3 ml should be infused at 11.3 ml/hour.
2. A client with hypertension who 3.5
weighs 72.4 kg is receiving an in-
fusion of nitroprusside (Nipride) 50 Calculate the mg/hour infusing,
, BSN 215 Dosage Calculation
Study online at https://quizlet.com/_hjl6ex
mg in D5W 250 ml at 75 ml/hour. 50 mg : 250 ml = X : 75 ml
How many mcg/kg/minute is the
client receiving? (Enter numeric val- =250X = 3750 and X = 15 mg/hour.
ue only. If rounding is required,
Next, convert mg/hr to mcg/hour
round to the nearest tenth.)
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.
3. A client who weighs 70 kg is re- 1.9
ceiving a dopamine solution of
800 mg/500 ml normal saline at 5 To change ml/hour to mcg/kg/minute, use the formu-
ml/hour. How many mcg/kg/minute la: desired rate (5 ml/hour) / volume available (500 ml)
is the client receiving? (Enter numer- x dose available (800 mg)
ic value only. If rounding is required,
= 8 mg/hour.
round to the nearest tenth.)
Next, convert milligrams/hour to mcg/kg/minute:
mg (8) x 1000 / kg (70) / 60 minutes
= 1.904
= 1.9 mcg/kg/minute.
4. A client is receiving an IV solu- 1.1
tion of sodium chloride 0.9% (Nor-
mal Saline) 250 ml with amiodarone Convert grams to mg, 1 gram equals 1,000 mg.
(Cordarone) 1 gram at 17 ml/hour.
Using ratio and proportion
How many mg/minute of amio-
, BSN 215 Dosage Calculation
Study online at https://quizlet.com/_hjl6ex
darone is infusing? (Enter numeric 1,000 mg : 250 ml :: X mg : 1ml
value only. If rounding is required, 1000mg/250 mL = X mg/ 1 ml
round to the nearest tenth.)
=250X= 1,000
so X = 4 mg/ml is the solution concentration of amio-
darone.
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.
5. A client who weighs 176 pounds 100
is receiving an IV infusion with es-
molol hydrochloride (Brevibloc) at Convert pounds to kg by dividing 176 pounds by 2.2
48 ml/hour. The IV solution is la- pounds = 80 kg.
beled with the concentration of
Convert the IV concentration from mg to mcg.
Brevibloc 10 mg/ml. How many
1 mg : 1000 mcg :: 10 mg : 10,000 mcg.
mcg/kg/minute is the client receiv-
ing? (Enter numeric value only.)
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.
6. The nurse is preparing the 95
change-of-shift report for a client
who has a 265 ml secondary infu- 85 ml x 2 hours = 170 ml has infused.
sion that was started 2 hours ago at
265 ml (total amount to be infused) - 170 ml (amount
a rate of 85 ml/hour via an infusion
infused) = 95 ml remain to be infused.
