BSN HESI 215 Dosage Calculations Exam Actual Exam
2025 | HESI Dosage Calculations Exam | Complete
Questions and Correct Answers with Detailed
Explanations | Graded A+ | Just Released
A client who had mitral valve replacement surgery receives a prescription for
dextrose 5% in water with 0.5 grams of dobutamine in 250 ml for IV infusion at a
rate of 5 mcg/kg/minute. The client weighs 75 kg. The nurse should program the
infusion pump to deliver how many ml/hr? (Enter numeric value only. If rounding
is required, round to the nearest tenth.) ---------CORRECT ANSWER-----------------
11.3
First calculate the number of mcg/kg/minute: 5 x 75 = 375 mcg/minute.
Calculate the number of mcg/hour: 375 x 60 minutes = 22,500 mcg/hour. Next
calculate the number of ml/hour needed to administer 22,500 mcg/hour:
500,000 mcg : 250 ml :: 22,500 mcg/ X ml 500,000X = 5,625,000 X = 11.25
(rounded to 11.3 ml/hour).
A healthcare provider prescribes a continuous infusion of 0.9% sodium chloride
with pancuronium (Pavulon) 25 mg/250 ml at a rate of 0.1 mg/kg/hr for a client
with coronary artery bypass grafting. The client weighs 78 kg. 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. ---------CORRECT
ANSWER-----------------78
First calculate the number of mg the client will receive in 1 hour: 0.1 mg x 78 kg
= 7.8 mg/hour. Next calculate the number of ml containing 7.8 mg of
,medication: 25 mg : 250 ml :: 7.8 mg : X 25 mg/ 7.8 mg :: 250 ml/X 25X = 1950 X
= 78 ml/hour.
A client scheduled for surgery is to receive an IV infusion of 0.9% sodium chloride
with prochlorperazine edisylate (Compazine) 10 mg/50 ml over 30 minutes. The
nurse should program the infusion pump to deliver how many ml/hour? (Enter
numeric value only.) ---------CORRECT ANSWER-----------------100
Calculate: 50 ml : 30 minutes :: X ml : 60 minutes 50/X :: 30/60 3000 = 15X X =
100 ml
The healthcare provider prescribes an IV infusion of 0.9% sodium chloride with 40
mEq KCl/500 ml to infuse over 3 hours for a client with hypokalemia. 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 ANSWER-----------------167
To determine ml/hour: 500 ml : 3 hours :: as X ml : 1 hour 500/X :: 3/1 500 = 3X
X = 166.66 (rounds to)= 167 ml/hour.
The healthcare provider prescribes a continuous infusion of 5% dextrose in 0.45%
sodium chloride at 85 ml/hour. The IV administration set delivers 10 gtt/ml. The
nurse should regulate the drop rate to deliver how many gtts/minute? (Enter
numeric value only. If rounding is required, round to the nearest whole number.) -
--------CORRECT ANSWER-----------------14
,Volume/Time (minutes) x drop factor (gtt/ml) = 85 ml/ 60 minutes x 10 gtt/ml =
14.16 = 14 gtt/minute
A 180-pound adult male is admitted to the Emergency Center after receiving
thermal burns to 60 percent of his body. Using the Parkland formula of 4
ml/kg/24 hours, the client should receive how many ml of fluid during the first 24
hours? (Enter numeric value only. If rounding is required, round to the nearest
whole number.) ---------CORRECT ANSWER-----------------19632
Using the Parkland formula, the client's fluid requirements for the first 24 hours
after injury: 4 ml lactated Ringer's solution x Body weight (in kilograms) x
Percent burn. Convert 180 pounds to kg = .2 = 81.8 kg 4 ml x 81.8 kg x 60
= 19632 ml over the first 24 hours.
The healthcare provider prescribes acetazolamide (Diamox) 600 mg/m2/day
divided into 3 doses. The nurse calculates the child's body surface area (BSA) as
0.7 m2. How many mg should the child receive per dose? (Enter numeric value
only.) ---------CORRECT ANSWER-----------------140
Using the child's BSA, 0.7 m2, calculate the mg/dose, 600 mg x 0.7 m2 = 420
mg/day/3 doses = 140 mg/dose
A loading dose of acetylcysteine (Mucomyst) 8 grams, which is available as a 20%
solution (200 mg acetylcysteine per ml) is prescribed by nasogastric tube for a
client with acetaminophen toxicity. How many ml of diluent should be added to
the medication to obtain a 1:4 concentration? (Enter numeric value only. If
, rounding is required, round to the nearest whole number.) ---------CORRECT
ANSWER-----------------120
8 grams = 8,000 mg prescribed dose. Using the formula, D/H x Q, 8,000 mg / 200
mg x 1 ml = 40 ml of the 20% solution. Dilute the 40 ml to a 1:4 concentration
for administration using ratio and proportion, 1 : 4 solution :: 40 ml : X X= 160
ml total volume to administer. Subtract total volume of 160 ml - 40 ml of 20%
concentration = 120 ml diluent is added to obtain a 1:4 concentration.
A child who weighs 55 pounds receives a prescription for atovaquone with
proguanil (Malarone Pediatric) 125 mg/50 mg PO daily. A drug reference states
that children 11 to 20 kg should receive 1 pediatric tablet daily; 21 to 30 kg should
receive 2 pediatric tablets daily; 31 to 40 kg should receive 3 pediatric tablets
daily; and greater than 40 kg should receive 1 adult tablet daily with food. The
drug is available as atovaquone 62.5 mg/proguanil 25 mg pediatric tablets. How
many tablets should the nurse administer? ---------CORRECT ANSWER-----------------
2
Calculate each drug component dose, using the formula, D/H 125 mg / 62.5 mg
(atovaquone) = 2 combined with 50 mg / 25 mg (proguanil) = 2. The child should
receive 2 tablets.
A client receives a prescription for azithromycin (Zithromax) 500 mg PO x 3 days.
Azithromycin is available as 250 mg scored tablets. How many tablets should the
nurse administer per dose? (Enter numeric value only. ---------CORRECT ANSWER--
---------------2
Using the formula, D/H 500 mg/250 mg = 2 tablets
2025 | HESI Dosage Calculations Exam | Complete
Questions and Correct Answers with Detailed
Explanations | Graded A+ | Just Released
A client who had mitral valve replacement surgery receives a prescription for
dextrose 5% in water with 0.5 grams of dobutamine in 250 ml for IV infusion at a
rate of 5 mcg/kg/minute. The client weighs 75 kg. The nurse should program the
infusion pump to deliver how many ml/hr? (Enter numeric value only. If rounding
is required, round to the nearest tenth.) ---------CORRECT ANSWER-----------------
11.3
First calculate the number of mcg/kg/minute: 5 x 75 = 375 mcg/minute.
Calculate the number of mcg/hour: 375 x 60 minutes = 22,500 mcg/hour. Next
calculate the number of ml/hour needed to administer 22,500 mcg/hour:
500,000 mcg : 250 ml :: 22,500 mcg/ X ml 500,000X = 5,625,000 X = 11.25
(rounded to 11.3 ml/hour).
A healthcare provider prescribes a continuous infusion of 0.9% sodium chloride
with pancuronium (Pavulon) 25 mg/250 ml at a rate of 0.1 mg/kg/hr for a client
with coronary artery bypass grafting. The client weighs 78 kg. 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. ---------CORRECT
ANSWER-----------------78
First calculate the number of mg the client will receive in 1 hour: 0.1 mg x 78 kg
= 7.8 mg/hour. Next calculate the number of ml containing 7.8 mg of
,medication: 25 mg : 250 ml :: 7.8 mg : X 25 mg/ 7.8 mg :: 250 ml/X 25X = 1950 X
= 78 ml/hour.
A client scheduled for surgery is to receive an IV infusion of 0.9% sodium chloride
with prochlorperazine edisylate (Compazine) 10 mg/50 ml over 30 minutes. The
nurse should program the infusion pump to deliver how many ml/hour? (Enter
numeric value only.) ---------CORRECT ANSWER-----------------100
Calculate: 50 ml : 30 minutes :: X ml : 60 minutes 50/X :: 30/60 3000 = 15X X =
100 ml
The healthcare provider prescribes an IV infusion of 0.9% sodium chloride with 40
mEq KCl/500 ml to infuse over 3 hours for a client with hypokalemia. 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 ANSWER-----------------167
To determine ml/hour: 500 ml : 3 hours :: as X ml : 1 hour 500/X :: 3/1 500 = 3X
X = 166.66 (rounds to)= 167 ml/hour.
The healthcare provider prescribes a continuous infusion of 5% dextrose in 0.45%
sodium chloride at 85 ml/hour. The IV administration set delivers 10 gtt/ml. The
nurse should regulate the drop rate to deliver how many gtts/minute? (Enter
numeric value only. If rounding is required, round to the nearest whole number.) -
--------CORRECT ANSWER-----------------14
,Volume/Time (minutes) x drop factor (gtt/ml) = 85 ml/ 60 minutes x 10 gtt/ml =
14.16 = 14 gtt/minute
A 180-pound adult male is admitted to the Emergency Center after receiving
thermal burns to 60 percent of his body. Using the Parkland formula of 4
ml/kg/24 hours, the client should receive how many ml of fluid during the first 24
hours? (Enter numeric value only. If rounding is required, round to the nearest
whole number.) ---------CORRECT ANSWER-----------------19632
Using the Parkland formula, the client's fluid requirements for the first 24 hours
after injury: 4 ml lactated Ringer's solution x Body weight (in kilograms) x
Percent burn. Convert 180 pounds to kg = .2 = 81.8 kg 4 ml x 81.8 kg x 60
= 19632 ml over the first 24 hours.
The healthcare provider prescribes acetazolamide (Diamox) 600 mg/m2/day
divided into 3 doses. The nurse calculates the child's body surface area (BSA) as
0.7 m2. How many mg should the child receive per dose? (Enter numeric value
only.) ---------CORRECT ANSWER-----------------140
Using the child's BSA, 0.7 m2, calculate the mg/dose, 600 mg x 0.7 m2 = 420
mg/day/3 doses = 140 mg/dose
A loading dose of acetylcysteine (Mucomyst) 8 grams, which is available as a 20%
solution (200 mg acetylcysteine per ml) is prescribed by nasogastric tube for a
client with acetaminophen toxicity. How many ml of diluent should be added to
the medication to obtain a 1:4 concentration? (Enter numeric value only. If
, rounding is required, round to the nearest whole number.) ---------CORRECT
ANSWER-----------------120
8 grams = 8,000 mg prescribed dose. Using the formula, D/H x Q, 8,000 mg / 200
mg x 1 ml = 40 ml of the 20% solution. Dilute the 40 ml to a 1:4 concentration
for administration using ratio and proportion, 1 : 4 solution :: 40 ml : X X= 160
ml total volume to administer. Subtract total volume of 160 ml - 40 ml of 20%
concentration = 120 ml diluent is added to obtain a 1:4 concentration.
A child who weighs 55 pounds receives a prescription for atovaquone with
proguanil (Malarone Pediatric) 125 mg/50 mg PO daily. A drug reference states
that children 11 to 20 kg should receive 1 pediatric tablet daily; 21 to 30 kg should
receive 2 pediatric tablets daily; 31 to 40 kg should receive 3 pediatric tablets
daily; and greater than 40 kg should receive 1 adult tablet daily with food. The
drug is available as atovaquone 62.5 mg/proguanil 25 mg pediatric tablets. How
many tablets should the nurse administer? ---------CORRECT ANSWER-----------------
2
Calculate each drug component dose, using the formula, D/H 125 mg / 62.5 mg
(atovaquone) = 2 combined with 50 mg / 25 mg (proguanil) = 2. The child should
receive 2 tablets.
A client receives a prescription for azithromycin (Zithromax) 500 mg PO x 3 days.
Azithromycin is available as 250 mg scored tablets. How many tablets should the
nurse administer per dose? (Enter numeric value only. ---------CORRECT ANSWER--
---------------2
Using the formula, D/H 500 mg/250 mg = 2 tablets
