DOSAGE CALC EXAM 2025 |
CERTIFIED EXAM QUESTIONS
VERIFIED ANSWERS | EXCELLENT
SCORES
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-answer-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.
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,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.
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, A client with hypertension who weighs 72.4 kg is receiving an 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-answer-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.
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CERTIFIED EXAM QUESTIONS
VERIFIED ANSWERS | EXCELLENT
SCORES
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-answer-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.
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,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.
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, A client with hypertension who weighs 72.4 kg is receiving an 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-answer-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.
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