2024 DOSAGE CALCULATION RN MATERNAL NEWBORN
PROCTORED ASSESSMENT EXAM QUESTIONS AND
ANSWERS WELL EXPLAINED 100% CORRECT
1. A nurse is preparing to administer ceftriaxone to a postpartum client who has a prescription
for 1 g IV every 24 hours. The available ceftriaxone solution is 2 g/10 mL. How many mL
should the nurse administer per dose? (Round to the nearest whole number.)
Explanation:
The prescription is for 1 g (1,000 mg) of ceftriaxone every 24 hours. The available solution is 2 g
(2,000 mg) in 10 mL.
Step 1: Convert the prescribed dose into the same unit as the available concentration:
1 g = 1,000 mg
Step 2: Determine the concentration of the available solution:
2 g in 10 mL = 2,000 mg/10 mL = 200 mg/mL
Step 3: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 1,000 mg ÷ 200 mg/mL = 5 mL
So, the nurse should administer 5 mL of ceftriaxone per dose.
,2. A postpartum client is prescribed 1.5 mg of lorazepam IV every 6 hours. The available
lorazepam solution is 4 mg/2 mL. How many mL should the nurse administer per dose? (Round
to the nearest whole number.)
Explanation:
The prescription is for 1.5 mg of lorazepam every 6 hours. The available solution is 4 mg in 2
mL.
Step 1: Determine the concentration of the solution:
4 mg in 2 mL = 2 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 1.5 mg ÷ 2 mg/mL = 0.75 mL
So, the nurse should administer 1 mL of lorazepam per dose after rounding to the nearest whole
number.
,3. A nurse is administering ibuprofen to a postpartum client with a prescription of 600 mg PO
every 8 hours. The available ibuprofen suspension is 100 mg/5 mL. How many mL should the
nurse administer per dose? (Round to the nearest whole number.)
Explanation:
The prescription is for 600 mg of ibuprofen every 8 hours. The available suspension is 100 mg in
5 mL.
Step 1: Determine the concentration of the suspension:
100 mg in 5 mL = 20 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 600 mg ÷ 20 mg/mL = 30 mL
So, the nurse should administer 30 mL of ibuprofen per dose.
4. A postpartum client is prescribed 0.25 g of metronidazole IV every 8 hours. The available
metronidazole solution is 500 mg/10 mL. How many mL should the nurse administer per dose?
(Round to the nearest whole number.)
, Explanation:
The prescription is for 0.25 g (250 mg) of metronidazole every 8 hours. The available solution is
500 mg in 10 mL.
Step 1: Determine the concentration of the solution:
500 mg in 10 mL = 50 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 250 mg ÷ 50 mg/mL = 5 mL
So, the nurse should administer 5 mL of metronidazole per dose.
5. A postpartum client is prescribed 750 mcg of folic acid daily. The available folic acid tablets
are 200 mcg each. How many tablets should the nurse administer per day? (Round to the nearest
whole number.)
Explanation:
The prescription is for 750 mcg of folic acid daily. The available tablets are 200 mcg each.
Step 1: Determine the number of tablets needed:
PROCTORED ASSESSMENT EXAM QUESTIONS AND
ANSWERS WELL EXPLAINED 100% CORRECT
1. A nurse is preparing to administer ceftriaxone to a postpartum client who has a prescription
for 1 g IV every 24 hours. The available ceftriaxone solution is 2 g/10 mL. How many mL
should the nurse administer per dose? (Round to the nearest whole number.)
Explanation:
The prescription is for 1 g (1,000 mg) of ceftriaxone every 24 hours. The available solution is 2 g
(2,000 mg) in 10 mL.
Step 1: Convert the prescribed dose into the same unit as the available concentration:
1 g = 1,000 mg
Step 2: Determine the concentration of the available solution:
2 g in 10 mL = 2,000 mg/10 mL = 200 mg/mL
Step 3: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 1,000 mg ÷ 200 mg/mL = 5 mL
So, the nurse should administer 5 mL of ceftriaxone per dose.
,2. A postpartum client is prescribed 1.5 mg of lorazepam IV every 6 hours. The available
lorazepam solution is 4 mg/2 mL. How many mL should the nurse administer per dose? (Round
to the nearest whole number.)
Explanation:
The prescription is for 1.5 mg of lorazepam every 6 hours. The available solution is 4 mg in 2
mL.
Step 1: Determine the concentration of the solution:
4 mg in 2 mL = 2 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 1.5 mg ÷ 2 mg/mL = 0.75 mL
So, the nurse should administer 1 mL of lorazepam per dose after rounding to the nearest whole
number.
,3. A nurse is administering ibuprofen to a postpartum client with a prescription of 600 mg PO
every 8 hours. The available ibuprofen suspension is 100 mg/5 mL. How many mL should the
nurse administer per dose? (Round to the nearest whole number.)
Explanation:
The prescription is for 600 mg of ibuprofen every 8 hours. The available suspension is 100 mg in
5 mL.
Step 1: Determine the concentration of the suspension:
100 mg in 5 mL = 20 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 600 mg ÷ 20 mg/mL = 30 mL
So, the nurse should administer 30 mL of ibuprofen per dose.
4. A postpartum client is prescribed 0.25 g of metronidazole IV every 8 hours. The available
metronidazole solution is 500 mg/10 mL. How many mL should the nurse administer per dose?
(Round to the nearest whole number.)
, Explanation:
The prescription is for 0.25 g (250 mg) of metronidazole every 8 hours. The available solution is
500 mg in 10 mL.
Step 1: Determine the concentration of the solution:
500 mg in 10 mL = 50 mg/mL
Step 2: Calculate the volume needed for the prescribed dose:
Volume (mL) = Desired dose (mg) ÷ Concentration (mg/mL)
Volume = 250 mg ÷ 50 mg/mL = 5 mL
So, the nurse should administer 5 mL of metronidazole per dose.
5. A postpartum client is prescribed 750 mcg of folic acid daily. The available folic acid tablets
are 200 mcg each. How many tablets should the nurse administer per day? (Round to the nearest
whole number.)
Explanation:
The prescription is for 750 mcg of folic acid daily. The available tablets are 200 mcg each.
Step 1: Determine the number of tablets needed:
