HESI Dosage Calculations Practice Exam 2024-
2025. Questions & Answers.
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.)
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ml 2X = 4 X = 2 - ANSWER 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 0.5
At the end of the shift, the nurse is recording the fluid balance for a client receiving a
continuous gastrostomy tube (GT) feeding. Based on the client's records, how many ml
should the nurse record for the total fluid balance (intake - output) for the shift that
started at 0700 and ended at 1900? (Enter numeric value only.) (Click on each image
asset for additional information.) - ANSWER 695
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 the numeric
value only. If rounding is required, round to the nearest whole number.) - ANSWER
19632
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 the numeric value only.) - ANSWER
140
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 the numerical value only. If rounding is required,
round to the whole number.) - ANSWER 120
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? -
ANSWER 2
2025. Questions & Answers.
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.)
Use ratio and proportion, 4 mg : X ml = 2 mg : 1 ml 2X = 4 X = 2 - ANSWER 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 0.5
At the end of the shift, the nurse is recording the fluid balance for a client receiving a
continuous gastrostomy tube (GT) feeding. Based on the client's records, how many ml
should the nurse record for the total fluid balance (intake - output) for the shift that
started at 0700 and ended at 1900? (Enter numeric value only.) (Click on each image
asset for additional information.) - ANSWER 695
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 the numeric
value only. If rounding is required, round to the nearest whole number.) - ANSWER
19632
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 the numeric value only.) - ANSWER
140
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 the numerical value only. If rounding is required,
round to the whole number.) - ANSWER 120
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? -
ANSWER 2
