MEDICATION CALCULATION, IV
DOSAGE CALCULATION, EXAM 1, ATI
DESIRED PRACTICE TEST, MED SURG
1 - HESI DOSAGE CALCULATION,
2025/2026
Calculate in mcg/kg/min the amount contained in 1 ml for a 75 kg
pt.
Dopamine 400 mg in 250 ml - CORRECT ANSWERS- 0.35
mcg/kg/min
A client receives a prescription for an intravenous infusion 0.45%
sodium chloride 500 ml to be infused over 6 hours. 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 whole number.) - CORRECT ANSWERS- Calculate using
Volume/Time: 500 ml/6 hours = 83.3 ml/hour
Calculate in mcg/kg/min the amount contained in 1 ml for a 85 kg
pt.
Dopamine 400 mg in 250 ml - CORRECT ANSWERS- 0.31
mcg/kg/min
A client is receiving Heparin Sodium 25,000 Units in 5% Dextrose
Injection 500 ml IV at 1,000 unit/hour per protocol for acute
,coronary syndrome (ACS). The client's partial thromboplastin time
(PTT) is 76 seconds. Based on the ACS protocol, the infusion
should be decreased by 100 units/hour for a PTT between 71 to
80 seconds. The nurse should program the pump to deliver how
many ml/hour? (Enter numeric value only.) - CORRECT ANSWERS-
Adjust the infusion to 900 units/hour (1,000 units/hour minus 100
units/hour per protocol). Using the formula, D/H x Q, 900 units/1
hour divided by 25,000 units x 500 ml = 90/5= 18 ml/hour.
The healthcare provider prescribes oxytocin (Pitocin) 0.5
milliunits/minute for a client in labor. One liter Ringer's Lactate
with 10 units of oxytocin (Pitocin) is infusing. The nurse should
program the infusion pump at how many ml/hour? (Enter numeric
value only.) - CORRECT ANSWERS- Using the formula, D/H x Q,
0.5 milliunits / 10,000 milliunits x 1000 ml = 0.05 ml/minute.
Multiply by 60 minutes = 3 ml/hour.
A client is receiving dantrolene sodium (Dantrium) PO for
malignant hyperthermia. The maximum safe dose is 8 mg/kg/day
in 4 divided doses. The client currently weighs 48.5 kg. What is
the maximum safe dose the nurse should administer? (Enter
numeric value only. If rounding is required, round to the nearest
whole number.) - CORRECT ANSWERS- Determine the maximum
number of mg this client should receive in a day: 48.5 kg x 8
mg/kg/day = 388 mg/day. Next determine how many mg the
nurse should deliver each dose: 388 mg/4 doses = 97 mg.
The healthcare provider prescribes a continuous intravenous
infusion of dextrose 5% and 0.45% sodium chloride with KCl 20
mEq/1000 ml to be delivered over 8 hours. 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
whole number.) - CORRECT ANSWERS- Using the formula
volume/time: 1000 ml/8 hours = 125 ml/hour
A client returns to the nursing unit from surgery with a
prescription for Lactated Ringer's solution 1,000 ml to be infused
over 10 hours. The IV administration set delivers 60 gtts/ml. The
nurse should regulate the infusion to deliver how many
gtts/minute? - CORRECT ANSWERS- First convert hours to
minutes: 10 hrs x 60 = 600 minutes. Using the formula
Volume/Time x drop factor: 1000 ml /600 minutes = 1.66666 x 60
= 100 gtts minute
An IV infusion of dextrose 5% in normal saline with oxytocin
(Pitocin) 20 units in 1,000 ml is prescribed for a client to control
postpartum bleeding. The solution is to be administered at a rate
of 2 mu/minute. The nurse should program the infusion pump to
administer how many ml/hour? (Enter numeric value only. If
rounding is required, round to the nearest whole number.) -
CORRECT ANSWERS- First calculate the number of units/hour.
0.002 units/minute x 60 minutes = 0.12 units/hour. Next calculate
the number of ml/hour needed to administer 0.12 units/hour. 20
units : 1,000 ml :: 0.12 units : X 20/0.12 :: 1,000/X 20X : 120 X =
6
The healthcare provider prescribes an IV solution of 5% dextrose
in water with magnesium sulfate 4 gram/50 ml to be infused over
30 minutes for a client with preeclampsia. 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
whole number.) - CORRECT ANSWERS- To calculate the rate of
, infusion for ml/hour: 50 ml: 30 minutes :: X ml : 60 minutes 50
ml / X ml :: 30 min / 60 min 3000 = 30X X = 100 ml/hour
A client who has a gastrostomy feeding tube is receiving 3/4
strength Ensure 240 ml every 6 hours. 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. If
needed, round to the nearest whole number.) - CORRECT
ANSWERS- 240 ml Ensure : 1 :: X ml Ensure : 0.75 240/X : 1 /
0.75 X = 240 x 0.75 = 180 ml Ensure + 60 ml water = 240 ml
0.9% normal saline with inamrinone (Inocor) 0.1 grams/100 ml is
prescribed for a client with heart failure. The medication is to be
delivered at a rate of 400 mcg/minute. 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 whole
number.) - CORRECT ANSWERS- First calculate the number of
mcg/hour: 400 mcg x 60 minutes = 24000 mcg/hour. Next
calculate the number of ml/hour needed to administer 24,000
mcg/hour: 100,000 mcg: 100ml :: 24,000 mcg : X
100,000/24,000 :: 100/X 100,000X = 2,400,000 X = 24 ml/hour.
A client experiencing cardiogenic shock receives a prescription for
an IV infusion of 0.9% normal saline with milrinone (Primacor) 10
mg in 100 ml at a rate of 46 mcg/minute. 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
whole number.) - CORRECT ANSWERS- First calculate the number
of mcg/hour: 46 mcg x 60 minutes = 2760 mcg/hour. Next
calculate the number of ml/hour needed to administer 2760
DOSAGE CALCULATION, EXAM 1, ATI
DESIRED PRACTICE TEST, MED SURG
1 - HESI DOSAGE CALCULATION,
2025/2026
Calculate in mcg/kg/min the amount contained in 1 ml for a 75 kg
pt.
Dopamine 400 mg in 250 ml - CORRECT ANSWERS- 0.35
mcg/kg/min
A client receives a prescription for an intravenous infusion 0.45%
sodium chloride 500 ml to be infused over 6 hours. 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 whole number.) - CORRECT ANSWERS- Calculate using
Volume/Time: 500 ml/6 hours = 83.3 ml/hour
Calculate in mcg/kg/min the amount contained in 1 ml for a 85 kg
pt.
Dopamine 400 mg in 250 ml - CORRECT ANSWERS- 0.31
mcg/kg/min
A client is receiving Heparin Sodium 25,000 Units in 5% Dextrose
Injection 500 ml IV at 1,000 unit/hour per protocol for acute
,coronary syndrome (ACS). The client's partial thromboplastin time
(PTT) is 76 seconds. Based on the ACS protocol, the infusion
should be decreased by 100 units/hour for a PTT between 71 to
80 seconds. The nurse should program the pump to deliver how
many ml/hour? (Enter numeric value only.) - CORRECT ANSWERS-
Adjust the infusion to 900 units/hour (1,000 units/hour minus 100
units/hour per protocol). Using the formula, D/H x Q, 900 units/1
hour divided by 25,000 units x 500 ml = 90/5= 18 ml/hour.
The healthcare provider prescribes oxytocin (Pitocin) 0.5
milliunits/minute for a client in labor. One liter Ringer's Lactate
with 10 units of oxytocin (Pitocin) is infusing. The nurse should
program the infusion pump at how many ml/hour? (Enter numeric
value only.) - CORRECT ANSWERS- Using the formula, D/H x Q,
0.5 milliunits / 10,000 milliunits x 1000 ml = 0.05 ml/minute.
Multiply by 60 minutes = 3 ml/hour.
A client is receiving dantrolene sodium (Dantrium) PO for
malignant hyperthermia. The maximum safe dose is 8 mg/kg/day
in 4 divided doses. The client currently weighs 48.5 kg. What is
the maximum safe dose the nurse should administer? (Enter
numeric value only. If rounding is required, round to the nearest
whole number.) - CORRECT ANSWERS- Determine the maximum
number of mg this client should receive in a day: 48.5 kg x 8
mg/kg/day = 388 mg/day. Next determine how many mg the
nurse should deliver each dose: 388 mg/4 doses = 97 mg.
The healthcare provider prescribes a continuous intravenous
infusion of dextrose 5% and 0.45% sodium chloride with KCl 20
mEq/1000 ml to be delivered over 8 hours. 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
whole number.) - CORRECT ANSWERS- Using the formula
volume/time: 1000 ml/8 hours = 125 ml/hour
A client returns to the nursing unit from surgery with a
prescription for Lactated Ringer's solution 1,000 ml to be infused
over 10 hours. The IV administration set delivers 60 gtts/ml. The
nurse should regulate the infusion to deliver how many
gtts/minute? - CORRECT ANSWERS- First convert hours to
minutes: 10 hrs x 60 = 600 minutes. Using the formula
Volume/Time x drop factor: 1000 ml /600 minutes = 1.66666 x 60
= 100 gtts minute
An IV infusion of dextrose 5% in normal saline with oxytocin
(Pitocin) 20 units in 1,000 ml is prescribed for a client to control
postpartum bleeding. The solution is to be administered at a rate
of 2 mu/minute. The nurse should program the infusion pump to
administer how many ml/hour? (Enter numeric value only. If
rounding is required, round to the nearest whole number.) -
CORRECT ANSWERS- First calculate the number of units/hour.
0.002 units/minute x 60 minutes = 0.12 units/hour. Next calculate
the number of ml/hour needed to administer 0.12 units/hour. 20
units : 1,000 ml :: 0.12 units : X 20/0.12 :: 1,000/X 20X : 120 X =
6
The healthcare provider prescribes an IV solution of 5% dextrose
in water with magnesium sulfate 4 gram/50 ml to be infused over
30 minutes for a client with preeclampsia. 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
whole number.) - CORRECT ANSWERS- To calculate the rate of
, infusion for ml/hour: 50 ml: 30 minutes :: X ml : 60 minutes 50
ml / X ml :: 30 min / 60 min 3000 = 30X X = 100 ml/hour
A client who has a gastrostomy feeding tube is receiving 3/4
strength Ensure 240 ml every 6 hours. 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. If
needed, round to the nearest whole number.) - CORRECT
ANSWERS- 240 ml Ensure : 1 :: X ml Ensure : 0.75 240/X : 1 /
0.75 X = 240 x 0.75 = 180 ml Ensure + 60 ml water = 240 ml
0.9% normal saline with inamrinone (Inocor) 0.1 grams/100 ml is
prescribed for a client with heart failure. The medication is to be
delivered at a rate of 400 mcg/minute. 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 whole
number.) - CORRECT ANSWERS- First calculate the number of
mcg/hour: 400 mcg x 60 minutes = 24000 mcg/hour. Next
calculate the number of ml/hour needed to administer 24,000
mcg/hour: 100,000 mcg: 100ml :: 24,000 mcg : X
100,000/24,000 :: 100/X 100,000X = 2,400,000 X = 24 ml/hour.
A client experiencing cardiogenic shock receives a prescription for
an IV infusion of 0.9% normal saline with milrinone (Primacor) 10
mg in 100 ml at a rate of 46 mcg/minute. 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
whole number.) - CORRECT ANSWERS- First calculate the number
of mcg/hour: 46 mcg x 60 minutes = 2760 mcg/hour. Next
calculate the number of ml/hour needed to administer 2760
