HESI Dosage Calculations Exam, Hesi Pharmacology Review Well elaborated solutions
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HESI Dosage Calculations
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HESI Dosage Calculations
HESI Dosage Calculations Exam, Hesi
Pharmacology Review Well elaborated
solutions
.
. 1. A 180-pound adult male is admitted to the Emergency Center afterreceiving
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...
HESI Dosage Calculations Exam, Hesi
Pharmacology Review Well elaborated
solutions
.
. 1. A 180-pound adult male is admitted to the Emergency Center afterreceiving
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 Responses: "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.
.
. 2. 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 Responses: "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
.
. 3. 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 Responses: "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.
,.
. 4. 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 Responses: "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.
. 5. A client is receiving an IV solution of sodium chloride 0.9% (Normal
Saline) 250 ml with amiodarone (Cordarone) 1 gram at 17 ml/hour. How
many mg/minute of amiodarone is infusing? (Enter numeric value only. If
rounding is required, round to the nearest tenth.)
. Correct Responses: "1.1, 1"Convert grams to mg, 1 gram equals 1,000
mg. Using ratio and proportion - 1,000 mg : 250 ml :: X mg : 1ml 250X= 1,000
so X = 4 mg/ml is the solution concentration of amiodarone. The infusion rate
(ml/hour) x concentration (mg/ml) divided by 60 minutes/hour 17 ml/hour
x 4 mg/ml = 68/60 = 1.13 = 1.1 mg/minute.
.
. 6. A client who weighs 176 pounds is receiving an IV infusion with
, esmolol hydrochloride (Brevibloc) at 48 ml/hour. The IV solution is labeled
with the concentration of Brevibloc 10 mg/ml. How many mcg/kg/minute is
the client receiving? (Enter numeric value only.)
. Correct Responses: "100"Convert pounds to kg by dividing 176
pounds by 2.2 pounds = 80 kg. Convert the IV concentration from mg to mcg.
1 mg : 1000 mcg :: 10 mg : 10,000 mcg. Infusion rate (48 ml/hour) x
concentration (10,000 mcg/ml) divided by 60 minutes/hour x 80 kg = 48 x
10,000 divided by 60 x 80 = 480, = 100 mcg/kg/minute.
.
. 7. 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.)
. Correct Responses: "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.
.
. 7.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.)
. Correct Responses: "2"Use ratio and proportion, 4 mg : X ml = 2 mg : 1
ml 2X = 4 X = 2
.
. 8. 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).
. Correct Responses: "0.5, 1"Use ratio and proportion, 5 mcg : X ml :: 10
mcg : 1ml 10X = 5 X = 0.5 ml
.
. 9. 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.)
. Correct Responses: "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
.
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