NEWEST 2025/2026 ATI dosage calculation Rn
fundamentals proctored assessment TEST WITH
Correct/Verified Answers GRADED A+
A nurse is preparing to administer meperidine 75 mg IM stat. Available
is meperidine injection 100 mg/mL. How many mL should the nurse
administer?
(Round answer to nearest hundredth. Use a leading zero if it applies.
Do not use a trailing zero.) - ANSWER -Answer: 0.75 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 75 mg
Step 3: What is the dose available? Dose available = Have 100 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
100 mg / 1mL =75 mg/ X mL
X mL = 0.75 mL
Step 7: Round if necessary.
pg. 1
,Step 8: Determine whether the amount to administer makes sense. If
there are 100 mg/mL and the prescription reads 75 mg, it makes sense
to administer 0.75 mL. The nurse should administer meperidine 0.75 mL
IM.
A nurse is preparing to administer famotidine 40 mg PO at bedtime.
Available is famotidine 20 mg/tablet. How many tablets should the
nurse administer?
(Round answer to nearest whole number. Use a leading zero if it
applies. Do not use a trailing zero.) - ANSWER -Answer: 2 tablets
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate?
tablet(s)
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 40 mg
Step 3: What is the dose available? Dose available = Have 20 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 tablet
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
20 mg/ 1 tablet = 40 mg/X tablet(s)
X tablet(s) = 2 tablets
pg. 2
,Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If
there are 20 mg/tablet and the prescription reads 40 mg, it makes
sense to administer 2 tablets. The nurse should administer famotidine 2
tablets PO at bedtime.
A nurse is preparing to administer morphine 4 mg IM. Available is
morphine injection 10 mg/mL. How many mL should the nurse
administer per dose?
(Round answer to nearest tenth. Use a leading zero if it applies. Do not
use a trailing zero.) - ANSWER -Answer: 0.4 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 4 mg
Step 3: What is the dose available? Dose available = Have 10 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
10 mg / 1 mL =4 mg /X mL
X mL = 0.4 mL
pg. 3
, Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If
there are 10 mg/mL and the prescription reads 4 mg, it makes sense to
administer 0.4 mL. The nurse should administer morphine 0.4 mL IM.
A nurse is preparing to administer 750,000 units of procaine penicillin G
IM. Available is procaine penicillin G injection 600,000 units/mL. How
many mL should the nurse administer per dose?
(Round answer to nearest tenth. Use a leading zero if it applies. Do not
use a trailing zero.) - ANSWER -Answer: 1.3 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 750,000 units
Step 3: What is the dose available? Dose available = Have 600,000 units
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/ Quantity= Desired /X
600,000 units/1 mL = 750,000 units/X mL
X mL = 1.25 mL
Step 7: Round if necessary. 1.25 mL = 1.3 mL
pg. 4
fundamentals proctored assessment TEST WITH
Correct/Verified Answers GRADED A+
A nurse is preparing to administer meperidine 75 mg IM stat. Available
is meperidine injection 100 mg/mL. How many mL should the nurse
administer?
(Round answer to nearest hundredth. Use a leading zero if it applies.
Do not use a trailing zero.) - ANSWER -Answer: 0.75 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 75 mg
Step 3: What is the dose available? Dose available = Have 100 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
100 mg / 1mL =75 mg/ X mL
X mL = 0.75 mL
Step 7: Round if necessary.
pg. 1
,Step 8: Determine whether the amount to administer makes sense. If
there are 100 mg/mL and the prescription reads 75 mg, it makes sense
to administer 0.75 mL. The nurse should administer meperidine 0.75 mL
IM.
A nurse is preparing to administer famotidine 40 mg PO at bedtime.
Available is famotidine 20 mg/tablet. How many tablets should the
nurse administer?
(Round answer to nearest whole number. Use a leading zero if it
applies. Do not use a trailing zero.) - ANSWER -Answer: 2 tablets
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate?
tablet(s)
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 40 mg
Step 3: What is the dose available? Dose available = Have 20 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 tablet
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
20 mg/ 1 tablet = 40 mg/X tablet(s)
X tablet(s) = 2 tablets
pg. 2
,Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If
there are 20 mg/tablet and the prescription reads 40 mg, it makes
sense to administer 2 tablets. The nurse should administer famotidine 2
tablets PO at bedtime.
A nurse is preparing to administer morphine 4 mg IM. Available is
morphine injection 10 mg/mL. How many mL should the nurse
administer per dose?
(Round answer to nearest tenth. Use a leading zero if it applies. Do not
use a trailing zero.) - ANSWER -Answer: 0.4 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 4 mg
Step 3: What is the dose available? Dose available = Have 10 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
10 mg / 1 mL =4 mg /X mL
X mL = 0.4 mL
pg. 3
, Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If
there are 10 mg/mL and the prescription reads 4 mg, it makes sense to
administer 0.4 mL. The nurse should administer morphine 0.4 mL IM.
A nurse is preparing to administer 750,000 units of procaine penicillin G
IM. Available is procaine penicillin G injection 600,000 units/mL. How
many mL should the nurse administer per dose?
(Round answer to nearest tenth. Use a leading zero if it applies. Do not
use a trailing zero.) - ANSWER -Answer: 1.3 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
Step 2: What is the dose the nurse should administer? Dose to
administer = Desired 750,000 units
Step 3: What is the dose available? Dose available = Have 600,000 units
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/ Quantity= Desired /X
600,000 units/1 mL = 750,000 units/X mL
X mL = 1.25 mL
Step 7: Round if necessary. 1.25 mL = 1.3 mL
pg. 4
