Dosage Calculation:
PN Fundamentals
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Practice Questions
and Correct Detailed
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Administering phenobarbital 6
mg/kg/day PO divided in equal doses
every 12 hrs to a patient weighing 44
lb. Available 20 mg/5 mL. How many
mL per dose? - correct answer=✔✔15 mL
1
, Patient needs 6 mg per kg a day, in 2
doses that are 12hrs apart & is 44lb;
FYI lb/2.2 = x kg
5mL = 20mg SO 1 mL = 4 mg
40lb/2.2 = 20kg so 6mg*20kg = 120mg
a day OR 60mg per 12hr dose SO
60mg/4mg= 15mL
Administering cefaclor 500 mg PO
every 12 hrs. Available cefaclor 250
mg/5 mL. How many mL per dose? -
correct answer=✔✔10 mL
Patient needs 500mg per dose & 5mL =
250mg SO
10mL = 500mg
Administering furosemide 20 mg IM.
Available furosemide 10 mg/mL. How
2
PN Fundamentals
Online Practice
Assessment Exam
Practice Questions
and Correct Detailed
Answers Latest
Update This Year
Administering phenobarbital 6
mg/kg/day PO divided in equal doses
every 12 hrs to a patient weighing 44
lb. Available 20 mg/5 mL. How many
mL per dose? - correct answer=✔✔15 mL
1
, Patient needs 6 mg per kg a day, in 2
doses that are 12hrs apart & is 44lb;
FYI lb/2.2 = x kg
5mL = 20mg SO 1 mL = 4 mg
40lb/2.2 = 20kg so 6mg*20kg = 120mg
a day OR 60mg per 12hr dose SO
60mg/4mg= 15mL
Administering cefaclor 500 mg PO
every 12 hrs. Available cefaclor 250
mg/5 mL. How many mL per dose? -
correct answer=✔✔10 mL
Patient needs 500mg per dose & 5mL =
250mg SO
10mL = 500mg
Administering furosemide 20 mg IM.
Available furosemide 10 mg/mL. How
2