Student: ______________________________
Clinical Group: _____________________
Molloy College
Barbara H. Hagan School of Nursing N 3490
DRUG CALCULATIONS: ASSESSMENT
CALCULATION INSTRUCTIONS:
Show all work in the space provided.
Round your answer at the end of the calculation (except for kilogram conversion).
ROUNDING RULES:
PARENTERAL:
Intravenous infusion by gravity (gtts/min): round to a whole number
Intravenous infusion by pump (mL/hr): round to the nearest tenth
Injectable medications:
· For any volume less than 1 mL, round to the nearest hundredth
· For any volume greater than 1 mL, round to the nearest tenth
ENTERAL
Oral/NGT/PEG/J Tube:
· For any volume less than 1 mL, round to the nearest hundredth
· For any volume greater then 1mL, round to the nearest tenth
WEIGHT: POUNDS TO KILOGRAMS CONVERSIONS: round to nearest tenth
When calculating a dose in gm, mg, mcg, units, etc. do not round. If necessary
round according to tenth
1.
Your patient weighing 28 pounds must receive a stat dose of lasix 20 mg IV. If the
recommended range for lasix is 0.5 – 2 mg/kg/dose, is this a safe dose?
Safe: __________ Yes __________No
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2.
You must administer 625 mg from a 1 Gram vial of nafcillin. Directions for
reconstitution of this vial state: add 3.6 ml of solution to get a final dilution of
250 mg/ml. How many mL do you need for your dose of 625 mg?
__________ ml
3.
4.
Using a buretrol on an IV pump give the “rate” and “volume to be infused” (VTBI)
settings for the following:
20 ml in 15 min?
rate: __________ ml/hr
VTBI: __________ ml
30 ml in 30 min?
rate: __________ ml/hr
VTBI: __________ ml
10 ml in 20 min?
rate: __________ ml/hr
VTBI: __________ ml
You have an order for gentamicin 75 mg IV Q8H for your 44 pound patient. If the
recommended dose of gentamicin is 6 – 7.5 mg/kg/24 hrs divided Q8H, is this dose safe?
Safe: __________ Yes __________ No
5.
Your 33 pound patient requires ibuprofen for pain. If the safe dose range for
ibuprofen is 5 -10 mg/kg/dose, what is the highest dose that she could receive?
_________________ mg
6.
The Physician’s order states to give 240 mg of acetaminophen every 4 hours to a 3 year
old child for fever over 101 F degrees. The bottle of acetaminophen that is available is
160mg/5mL. Calculate the amount of mL you would give per dose.
__________ ml
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7.
The mother of the child in question 6 states that she has the same concentration of
acetaminophen at home, but asks how much this dose is in teaspoons since the medication
spoon she has is marked in teaspoons. How many teaspoons will you instruct the mother to
give for this 240mg dose?
___________mL
8.
Liquid digoxin is available as 0.05 mg/ml. How much of this solution do you need for a
dose of 36 micrograms?
___________ ml
For question 9 and 10: A child weighing 13.8 kg is ordered to receive 10 mL per kg of normal
saline over 90 minutes.
9.
How much volume will you give for this bolus?
______________________mL
10.
What hourly rate would you set on the infusion pump to administer this volume in 90
minutes?
_______________________mL
SPRING 2021 MATH PRACTICE | 1/16/2021amp