BSN HESI 215 Dosage Calculation Newest With Actual
Questions and Correct Solutions A+
A client who had a small bowel resection two weeks ago is receiving 3/4 strength
Ensure feedings 275 ml every 4 hours via nasogastric tube. Full strength Ensure is
available in a 240 ml can. The nurse should use how many ml of Ensure to prepare the
feeding? (Enter numeric value only. Round to nearest whole number if needed.) -
Answer Using the formula Desired % / on Hand % x Volume Desired = 75/100 x 275 =
0.75 x 275 = 206 Ensure
206 ml Ensure + 69 ml water = 275 ml (75% solution)
An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg
PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should
the nurse administer? (If rounding is required, round to the nearest tenth.) - Answer
Using the formula, Desired dose / dose on Hand x Quantity of volume on hand (D/H x
Q)
126 mg / 60 mg x 5 ml = 10.5 ml
A client weighing 86 kg is receiving dopamine at 8 mcg/kg/minute. The drug is
dispensed as dopamine 800 mg/500 ml. The nurse should program the infusion pump
to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round
to the nearest tenth.) - Answer First, change the concentration of dispensed
dopamine to mcg/ml. 1 mg : 1000 mcg :: 800 mg : X mcg = 800,000 mcg/500 ml = 1600
mcg/ ml.
Using the formula, prescribed dose (8 mcg/kg/minute) x 60 minute/hour x weight (86 kg)
divided by the concentration of the available drug (1600 mcg/ml) = 8 x 60 x 86 divided
by 1600 = 25.8 ml/hour
The healthcare provider prescribes a continuous infusion of dextrose 5% in water with
isoproterenol (Isuprel) 2 mg in 500 ml at a rate of 5 mcg/minute for a client with cardiac
arrhythmia. The nurse should program the infusion pump to deliver how many ml/hour?
, (Enter numeric value only. If rounding is required, round to the nearest hundredth.) -
Answer First using the known conversion 1 mg = 1000 micrograms.
Next, calculate the number of micrograms in solution: 1mg = 1000 mcg :: 2 mg = 2000
mcg
Then calculate how many ml of solution contain 5 mcg dose/minute: 2000 mcg : 500ml
:: 5 mcg : X ml
2000/5 :: 500/X
X = 1.25 ml/minute
Calculating ml/hour: 1.25 ml x 60 minutes = 75 ml/hour
Heparin protocol is prescribed for a client weighing 90 kg. Per protocol, the heparin
loading dose is 60 units/kg IV rounded to the nearest 100 units, with a maximum loading
dose of 4,000 units. The heparin vial is labeled 5,000 units/ml. How many ml should the
nurse administer? (Enter the numeric value only. If rounding is required, round to the
nearest tenth.)
false Item 51164 By Sheila Duncan Heparin Protocol:
Heparin loading dose: 60 units/kg IV, rounded to the nearest 100 units, followed by a
maintenance infusion of 12 units/kg/hr, rounded to the nearest 100 units/hr. The
maximum bolus is 4,000 units and the maximum initial infusion is 1000 units/hr. -
Answer Determine the client loading dose: 60 units x 90 kg = 5,400 unit.
Per protocol, use the maximum loading dose of 4,000 units, and calculate the
client's dose using the formula D/H x Q = 4,000 units / 5,000 units x 1 ml = 4/5 =
0.8 ml
or Use ratio and proportion: 5,000 : 1 ml :: 4,000 : X
X = 0.8 ml
A child weighing 28.4 kg is in hypertensive crisis. The healthcare provider prescibes
methyldopa (Aldomet) 40 mg/kg/day IV in 4 divided doses. The pharmacy provides a 50
mg/ml injection vial. How many ml should the nurse administer? (Enter numeric value
only. If rounding is required, round to the nearest tenth.) - Answer First calculate the
total mg dose/day: 40 mg x 28.4 kg = 1136 mg/day
Questions and Correct Solutions A+
A client who had a small bowel resection two weeks ago is receiving 3/4 strength
Ensure feedings 275 ml every 4 hours via nasogastric tube. Full strength Ensure is
available in a 240 ml can. The nurse should use how many ml of Ensure to prepare the
feeding? (Enter numeric value only. Round to nearest whole number if needed.) -
Answer Using the formula Desired % / on Hand % x Volume Desired = 75/100 x 275 =
0.75 x 275 = 206 Ensure
206 ml Ensure + 69 ml water = 275 ml (75% solution)
An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg
PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should
the nurse administer? (If rounding is required, round to the nearest tenth.) - Answer
Using the formula, Desired dose / dose on Hand x Quantity of volume on hand (D/H x
Q)
126 mg / 60 mg x 5 ml = 10.5 ml
A client weighing 86 kg is receiving dopamine at 8 mcg/kg/minute. The drug is
dispensed as dopamine 800 mg/500 ml. The nurse should program the infusion pump
to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round
to the nearest tenth.) - Answer First, change the concentration of dispensed
dopamine to mcg/ml. 1 mg : 1000 mcg :: 800 mg : X mcg = 800,000 mcg/500 ml = 1600
mcg/ ml.
Using the formula, prescribed dose (8 mcg/kg/minute) x 60 minute/hour x weight (86 kg)
divided by the concentration of the available drug (1600 mcg/ml) = 8 x 60 x 86 divided
by 1600 = 25.8 ml/hour
The healthcare provider prescribes a continuous infusion of dextrose 5% in water with
isoproterenol (Isuprel) 2 mg in 500 ml at a rate of 5 mcg/minute for a client with cardiac
arrhythmia. The nurse should program the infusion pump to deliver how many ml/hour?
, (Enter numeric value only. If rounding is required, round to the nearest hundredth.) -
Answer First using the known conversion 1 mg = 1000 micrograms.
Next, calculate the number of micrograms in solution: 1mg = 1000 mcg :: 2 mg = 2000
mcg
Then calculate how many ml of solution contain 5 mcg dose/minute: 2000 mcg : 500ml
:: 5 mcg : X ml
2000/5 :: 500/X
X = 1.25 ml/minute
Calculating ml/hour: 1.25 ml x 60 minutes = 75 ml/hour
Heparin protocol is prescribed for a client weighing 90 kg. Per protocol, the heparin
loading dose is 60 units/kg IV rounded to the nearest 100 units, with a maximum loading
dose of 4,000 units. The heparin vial is labeled 5,000 units/ml. How many ml should the
nurse administer? (Enter the numeric value only. If rounding is required, round to the
nearest tenth.)
false Item 51164 By Sheila Duncan Heparin Protocol:
Heparin loading dose: 60 units/kg IV, rounded to the nearest 100 units, followed by a
maintenance infusion of 12 units/kg/hr, rounded to the nearest 100 units/hr. The
maximum bolus is 4,000 units and the maximum initial infusion is 1000 units/hr. -
Answer Determine the client loading dose: 60 units x 90 kg = 5,400 unit.
Per protocol, use the maximum loading dose of 4,000 units, and calculate the
client's dose using the formula D/H x Q = 4,000 units / 5,000 units x 1 ml = 4/5 =
0.8 ml
or Use ratio and proportion: 5,000 : 1 ml :: 4,000 : X
X = 0.8 ml
A child weighing 28.4 kg is in hypertensive crisis. The healthcare provider prescibes
methyldopa (Aldomet) 40 mg/kg/day IV in 4 divided doses. The pharmacy provides a 50
mg/ml injection vial. How many ml should the nurse administer? (Enter numeric value
only. If rounding is required, round to the nearest tenth.) - Answer First calculate the
total mg dose/day: 40 mg x 28.4 kg = 1136 mg/day
