Dosage Calculation RN Fundamentals Online
Practice Assessment 3.0 2025 UPDATE!!
Save
Terms in this set (50)
Answer: 10 mL
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
should calculate? mL
A nurse is preparing to Step 2: What is the dose the nurse should administer?
administer codeine 20 mg Dose to administer = Desired 20 mg
PO every 6 hr PRN pain. Step 3: What is the dose available? Dose available =
Available is codeine oral Have 10 mg
solution 10 mg/ 5 mL. How Step 4: Should the nurse convert the units of
many mL should the nurse measurement? No
administer per dose? Step 5: What is the quantity of the dose available? 5
mL
(Round to the nearest Step 6: Set up an equation and solve for X.
whole number. Use a Have/Quantity = Desired/X
leading zero if it applies. 10 mg/ 5 mL = 20 mg/ X mL
Do not use a trailing zero.) X mL = 10 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer
makes sense. If there are 10 mg/5 mL and the
prescription reads 20 mg, it makes sense to administer
10 mL. The nurse should administer codeine oral
solution 10 mL PO every 6 hr PRN pain.
, Answer: 2 mg
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
A nurse is preparing to should calculate? mg
administer eszopiclone Step 2: What is the dose the nurse should administer?
2,000 mcg PO to a client. Dose to administer = Desired 2,000 mcg
How many mg should the Step 3: What is the dose available? Dose available =
nurse administer? Have 1 mg
Step 4: Should the nurse convert the units of
(Round to the nearest measurement? Yes (mcg does not equal mg)
whole number. Use a 1,000 mcg/1 mg = 2,000 mcg/X mg
leading zero if it applies. X mg = 2 mg
Do not use a trailing zero.) Step 5: Round if necessary.
Step 6: Determine whether the amount to administer
makes sense. If the prescription reads 2,000 mcg and
1,000 mcg equals 1 mg, it makes sense to administer 2
mg. The nurse should administer eszopiclone 2 mg
PO.
, Answer: 2 mL
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
should calculate? mg
Step 2: Set up an equation and solve for X.
X = Dose per kg × Client's weight in kg
X mg = 4 mg/kg × 60 kg
X mg = 240 mg
A nurse is preparing to
The dose is divided into three equal doses; therefore,
administer tobramycin 4
divide X by 3.
mg/kg/day IM divided in
240 mg = 80 mg3
three equal doses to a
Step 3: What is the unit of measurement the nurse
patient who weighs 60 kg.
should calculate? mL
Available is tobramycin 40
Step 4: What is the dose the nurse should administer?
mg/mL. How many mL
Dose to administer = Desired 80 mg
should the nurse
Step 5: What is the dose available? Dose available =
administer per dose?
Have 40 mg
Step 6: Should the nurse convert the units of
(Round to the nearest
measurement? No
whole number. Use a
Step 7: What is the quantity of the dose available? 1
leading zero if it applies.
mL
Do not use a trailing zero.)
Step 8: Set up an equation and solve for X.
Have/Quantity = Desired/X
40 mg/1 mL = 80 mg/X mL
X mL = 2 mL
Step 9: Round if necessary.
Step 10: Determine whether the amount to administer
makes sense. If there are 40 mg/mL and the
prescription reads 4 mg/kg/day divided in three equal
doses, it makes sense to administer 2 mL. The nurse
should administer tobramycin 2 mL IM per dose.
Practice Assessment 3.0 2025 UPDATE!!
Save
Terms in this set (50)
Answer: 10 mL
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
should calculate? mL
A nurse is preparing to Step 2: What is the dose the nurse should administer?
administer codeine 20 mg Dose to administer = Desired 20 mg
PO every 6 hr PRN pain. Step 3: What is the dose available? Dose available =
Available is codeine oral Have 10 mg
solution 10 mg/ 5 mL. How Step 4: Should the nurse convert the units of
many mL should the nurse measurement? No
administer per dose? Step 5: What is the quantity of the dose available? 5
mL
(Round to the nearest Step 6: Set up an equation and solve for X.
whole number. Use a Have/Quantity = Desired/X
leading zero if it applies. 10 mg/ 5 mL = 20 mg/ X mL
Do not use a trailing zero.) X mL = 10 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer
makes sense. If there are 10 mg/5 mL and the
prescription reads 20 mg, it makes sense to administer
10 mL. The nurse should administer codeine oral
solution 10 mL PO every 6 hr PRN pain.
, Answer: 2 mg
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
A nurse is preparing to should calculate? mg
administer eszopiclone Step 2: What is the dose the nurse should administer?
2,000 mcg PO to a client. Dose to administer = Desired 2,000 mcg
How many mg should the Step 3: What is the dose available? Dose available =
nurse administer? Have 1 mg
Step 4: Should the nurse convert the units of
(Round to the nearest measurement? Yes (mcg does not equal mg)
whole number. Use a 1,000 mcg/1 mg = 2,000 mcg/X mg
leading zero if it applies. X mg = 2 mg
Do not use a trailing zero.) Step 5: Round if necessary.
Step 6: Determine whether the amount to administer
makes sense. If the prescription reads 2,000 mcg and
1,000 mcg equals 1 mg, it makes sense to administer 2
mg. The nurse should administer eszopiclone 2 mg
PO.
, Answer: 2 mL
Follow these steps for the Ratio and Proportion
method of calculation:
Step 1: What is the unit of measurement the nurse
should calculate? mg
Step 2: Set up an equation and solve for X.
X = Dose per kg × Client's weight in kg
X mg = 4 mg/kg × 60 kg
X mg = 240 mg
A nurse is preparing to
The dose is divided into three equal doses; therefore,
administer tobramycin 4
divide X by 3.
mg/kg/day IM divided in
240 mg = 80 mg3
three equal doses to a
Step 3: What is the unit of measurement the nurse
patient who weighs 60 kg.
should calculate? mL
Available is tobramycin 40
Step 4: What is the dose the nurse should administer?
mg/mL. How many mL
Dose to administer = Desired 80 mg
should the nurse
Step 5: What is the dose available? Dose available =
administer per dose?
Have 40 mg
Step 6: Should the nurse convert the units of
(Round to the nearest
measurement? No
whole number. Use a
Step 7: What is the quantity of the dose available? 1
leading zero if it applies.
mL
Do not use a trailing zero.)
Step 8: Set up an equation and solve for X.
Have/Quantity = Desired/X
40 mg/1 mL = 80 mg/X mL
X mL = 2 mL
Step 9: Round if necessary.
Step 10: Determine whether the amount to administer
makes sense. If there are 40 mg/mL and the
prescription reads 4 mg/kg/day divided in three equal
doses, it makes sense to administer 2 mL. The nurse
should administer tobramycin 2 mL IM per dose.
