NEWEST 2026 ACTUAL EXAM TEST BANK| DOSAGE
CALCULATION HESI EXAM WITH COMPLETE REAL
EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST RECENT!!)
The nurse is preparing the change-of-shift report for a client who has a
265 ml secondary infusion that was started 2 hours ago at a rate of 85
ml/hour via an infusion pump. The nurse should report that how many
ml remain to be infused by the on-coming nurse? (Enter numeric value
only.) - ANSWER - 95
85 ml x 2 hours = 170 ml has infused. 265 ml (total amount to be
infused) - 170 ml (amount infused) = 95 ml remain to be infused.
A male client receives a prescription for ondansetron hydrochloride
(Zofran) 4 mg IV to prevent postoperative nausea after an inguinal
hernia repair. The medication is available in 2 mg/ml. How many ml
should the nurse administer? (Enter numeric value only.) - ANSWER - 2
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ml 2X = 4 X = 2
The nurse is preparing to administer Hepatitis B Vaccine, Recombinant
(Energix-B) 5 mcg IM to a school-aged child. The vaccine is labeled, 10
mcg/ml. How many ml should the nurse administer? (Enter numeric
value only. If rounding is required, round to the nearest tenth). -
ANSWER - 1 or 0.5
Use ratio and proportion, 5 mcg : X ml :: 10 mcg : 1ml
10X = 5 X = 0.5 ml
pg. 1
,A client's daily PO prescription for aripiprazole (Abilify) is increased
from 15 mg to 30 mg. The medication is available in 15 mg tablets, and
the client already received one tablet today. How many additional tablets
should the nurse administer so the client receives the total newly
prescribed dose for the day? (Enter numeric value only.) - ANSWER - 1
30 mg (total dose) - 15 mg (dose already administered) = 15 mg that still
needs to be administered. Using the Desired/Have formula: 15 mg/15
mg = 1 tablet
The nurse is administering a 250 milliliter (ml) intravenous solution to
be infused over 2 hours. How many ml/hour should the nurse program
the infusion pump? (Enter numeric value only.) - ANSWER - 125
250 ml : 2 hours = X ml : 1 hour 250 = 2X X = 250 divided by 2 = 125
ml/hr
The nurse is preparing to administer 0.25 mg of bumetanide (Bumex) IV.
The medication is available in a vial labeled 1 mg/4 ml. How many ml
of medication should the nurse administer? (Enter numeric value only.) -
ANSWER - 1
Using the Desired/Have x Volume formula: Desired = 0.25 mg Have = 1
mg Volume = 4 ml 0.25 mg/1 mg x 4 ml = 1 ml
A client with hypertension receives a prescription for carteolol (Cartel)
7.5 mg PO daily. The drug is available in 2.5 mg tablets. How many
tablets should the nurse administer? (Enter numeric value only.) -
ANSWER - 3
Using D/H: 7.5 mg / 2.5 mg = 3 tablets
A 180-pound adult male is admitted to the Emergency Center after
receiving thermal burns to 60 percent of his body. Using the Parkland
pg. 2
,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.) - 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.) - 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.) - 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
pg. 3
, 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? - 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. - ANSWER - 2
Using the formula, D/H 500 mg/250 mg = 2 tablets
A child who is scheduled for a kidney transplant receives a prescription
for basiliximab (Simulect) 20 mg IV 2 hours prior to surgery. The
medication is available in a 20 mg vial that is reconstituted by adding 5
ml sterile water for injection, and administered in a 50 ml bag of normal
saline over 30 minutes. The nurse should program the infusion pump to
deliver how many ml/hour? (Enter numeric value only. - ANSWER -
110
After reconstituting the medication vial, the nurse adds the 5 ml of
medication to the 50 ml of sterile water to result in a 55 ml volume to
infuse in 30 minutes. Using the formula, Volume/Time = 55 ml / 0.5
hours = 110 ml/hour
A client with a gastrostomy tube (GT) receives a prescription for
Osmolite® 1/2 strength enteral formula at 80 ml/hour. To prepare a 4
hour solution, the nurse should dilute the full-strength formula with how
many ml of water? (Enter numeric value only.) - ANSWER - 160
pg. 4