ATI Safe Dosage Calculations: Critical
Care Medications Questions With
Complete Solutions
A nurse is preparing to administer magnesium sulfate
1.75g/hr by continuous IV infusion. Available is 4g
magnesium sulfate in 100mL dextrose 5% water. The nurse
should se the IV pump to deliver how many mL/hr? (Round
the answer to the nearest tenth. Use a leading zero is it
applies. Do not use a trailing zero) - Correct Answers
✅1.74g / 4g = 0.4375 X 100mL = 43.75 = 43.8mL/hr
A nurse is preparing to administer lidocaine 2 mg/min by
continuous IV infusion. Available is lidocaine 2 g in 500 ml
dextrose 5% in water (D5W). The nurse should set the IV
pump to deliver how many ml/hr? - Correct Answers ✅2mg
/ 1000mg = 0.002g X 60mins = 0.12g / 2g = 0.06g X 500mL
= 30mL/hr
A nurse is preparing to administer lidocaine 3 mg/min by
continuous IV infusion. Available is 2 g lidocaine in 500 ml
dextrose 5% in water (D5W). The nurse should set the IV
pump to deliver how many ml/hr? - Correct Answers ✅3mg
/ 1000mg = 0.003g X 60min = 0.18g/hr / 2g = 0.09g X
500mL = 45m/hr
A nurse is preparing to administer magnesium sulfate 1.5
g/hr by continuous IV infusion. Available is magnesium sulfate
20 g in 500 ml dextrose 5% in water (D5W). The nurse should
set the IV pump to deliver how many ml/ hr? - Correct
Answers ✅1.5g / 20g = 0.075g X 500mL = 37.5mL
, ATI Safe Dosage Calculations: Critical
Care Medications Questions With
Complete Solutions
A nurse is preparing to administer heparin 15 units/kg/hr by
continuous IV infusion to a client who weighs 72 kg. Available
is 25,000 units of heparin in 500 ml 0.9% sodium chloride.
The nurse should set the IV pump to deliver how many ml/hr?
- Correct Answers ✅72kg X 15units/kg = 1,080units /
25,000units = 0.0432units X 500mL = 21.6mL
A nurse is preparing to administer nitroprusside 4 mcg/kg/min
by continuous IV infusion to a client who weighs 57 kg.
Available is nitroprusside 50 mg in 250 ml dextrose 5% in
water (D5W). The nurse should set the IV pump to deliver
how many ml/hr? - Correct Answers ✅57kg X 4mcg/kg =
228mcg / 1,000mcg = 0.228mg x 60mins = 13.68mg / 50mg
= 0.2736 X 250mL = 68.4
A nurse is preparing to administer a one time dose of
gentamicin 120 mg over 2 hr to a client. Available is
gentamicin 120 mg in 100 ml of 0.9% sodium chloride. The
nurse should set the IV pump to deliver how many ml/hr? -
Correct Answers ✅120mg / 2 = 60mg / 120mg = 0.5mg X
100mL = 50mL/hr
A nurse is preparing to administer 0.45% sodium chloride 750
ml IV to infuse over 2 hr to a client. The nurse should set the
IV pump to deliver how many mL/hr - Correct Answers
✅750mL / 2 = 375mL/hr
Care Medications Questions With
Complete Solutions
A nurse is preparing to administer magnesium sulfate
1.75g/hr by continuous IV infusion. Available is 4g
magnesium sulfate in 100mL dextrose 5% water. The nurse
should se the IV pump to deliver how many mL/hr? (Round
the answer to the nearest tenth. Use a leading zero is it
applies. Do not use a trailing zero) - Correct Answers
✅1.74g / 4g = 0.4375 X 100mL = 43.75 = 43.8mL/hr
A nurse is preparing to administer lidocaine 2 mg/min by
continuous IV infusion. Available is lidocaine 2 g in 500 ml
dextrose 5% in water (D5W). The nurse should set the IV
pump to deliver how many ml/hr? - Correct Answers ✅2mg
/ 1000mg = 0.002g X 60mins = 0.12g / 2g = 0.06g X 500mL
= 30mL/hr
A nurse is preparing to administer lidocaine 3 mg/min by
continuous IV infusion. Available is 2 g lidocaine in 500 ml
dextrose 5% in water (D5W). The nurse should set the IV
pump to deliver how many ml/hr? - Correct Answers ✅3mg
/ 1000mg = 0.003g X 60min = 0.18g/hr / 2g = 0.09g X
500mL = 45m/hr
A nurse is preparing to administer magnesium sulfate 1.5
g/hr by continuous IV infusion. Available is magnesium sulfate
20 g in 500 ml dextrose 5% in water (D5W). The nurse should
set the IV pump to deliver how many ml/ hr? - Correct
Answers ✅1.5g / 20g = 0.075g X 500mL = 37.5mL
, ATI Safe Dosage Calculations: Critical
Care Medications Questions With
Complete Solutions
A nurse is preparing to administer heparin 15 units/kg/hr by
continuous IV infusion to a client who weighs 72 kg. Available
is 25,000 units of heparin in 500 ml 0.9% sodium chloride.
The nurse should set the IV pump to deliver how many ml/hr?
- Correct Answers ✅72kg X 15units/kg = 1,080units /
25,000units = 0.0432units X 500mL = 21.6mL
A nurse is preparing to administer nitroprusside 4 mcg/kg/min
by continuous IV infusion to a client who weighs 57 kg.
Available is nitroprusside 50 mg in 250 ml dextrose 5% in
water (D5W). The nurse should set the IV pump to deliver
how many ml/hr? - Correct Answers ✅57kg X 4mcg/kg =
228mcg / 1,000mcg = 0.228mg x 60mins = 13.68mg / 50mg
= 0.2736 X 250mL = 68.4
A nurse is preparing to administer a one time dose of
gentamicin 120 mg over 2 hr to a client. Available is
gentamicin 120 mg in 100 ml of 0.9% sodium chloride. The
nurse should set the IV pump to deliver how many ml/hr? -
Correct Answers ✅120mg / 2 = 60mg / 120mg = 0.5mg X
100mL = 50mL/hr
A nurse is preparing to administer 0.45% sodium chloride 750
ml IV to infuse over 2 hr to a client. The nurse should set the
IV pump to deliver how many mL/hr - Correct Answers
✅750mL / 2 = 375mL/hr
