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ATI DOSAGE CALCULATIONS
PRACTICE ANSWER KEY (FULL CHEAT
SHEET LATEST 2021)
Dosage Calculations
Practice
▪ Round kg to nearest hundredth
▪ Round final answer as indicated
▪ Do not round numbers as you are working out the problem (except for
kg)
▪ Show your work
Desired Over Have: Round answer to the nearest tenth.
1. The physician orders to give IV Penicillin 100,000 units. The Penicillin
on hand is labeled 250,000 units/mL. How much of the drug will you
administer? 0.4 mL
2. Administer a dose of Vitamin K (Aquamephyton) 0.5 mg. Available:
Vitamin K 1 mg/1mL. How many mLs would you administer? 0.5
mL
3. Morphine sulfate 6 mg IV push q4h for pain. On hand: Morphine
sulfate 10 mg per mL. How many mLs would you give? 0.6 mL
4. Doctor orders 10 units of insulin per hour via infusion pump. Insulin
100 units in 250 normal saline solution is available. How many mL will
the nurse set the pump on? 25 mL/hr
5. Order: Kanamycin (Kantrex) 1 g po q6h x 3 days. Drug available
Kantrex 500 mg. How many capsules will you administer per day?
8 capsules/day
6. In ectopic pregnancies RhoGam is administered. Order is for 300
mcg IM. On- hand is RhoGam 150mcg/mL. How many milliliters
would you administer? 2 mL
7. Ordered is Misoprostol (Cytotec) 200 mcg po to be given q4h for
24 hours. On-hand is 100 mcg tablet. How many tablets would
you administer each day? 12 tablets/day
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, 2
8. Methotrexate is given for molar pregnancy in serial IM injections. An
order for Methotrexate 25 mg weekly x 4 weeks was written. On-
hand is Methotrexate 50 mg/2mL vial. How many millimeters would
you administer each week? 1 mL
9. Dexamethasone is used in preterm labor patients. Order is for 6
mg every 12 hrs for 2 doses. On-hand is Dexamethasone 12
mg/2mL vial. How many millimeters would you administer per
dose? 1 mL
This study source was downloaded by 100000817901988 from CourseHero.com on 09-17-2021 19:10:34 GMT -05:00
https://www.coursehero.com/file/32878466/Dosage-Calculations-Practice-Answer-Keydocx/
, 10. Zofran (Ordansetron) 8 mg tablets po q4-6 hrs PRN. On-hand is
Zofran 4 mg.
How many tablets would you administer? 2 tablets
11. The physician ordered Digoxin 250 mcg po qid. The label
reads 1 tablet equals 0.25 mg. How many tablets will you
administer? 1 tablet
12. The nonsteroidal medication naproxen (Naprosyn) has been
prescribed for a patient, 1375 mg/day in divided doses. Each tablet
contains 0.275 g. How many tablets equal this daily dose? 5 tablets
13. The order is to give 600 mg of Ampicillin IM qhr. The directions
for dilution on the 2gm vial reads: Reconstitution with 4.8 mL of
sterile water to obtain a concentration of 400 mg per mL. How many
mL will you administer per dose?
1.5 mL
14. The physician ordered 180 mg of Dilantin po q8h. The patient
weighs 98 lbs.
The label of the drug reads 250 mg per 5 mL. How many milliliters will
you administer to the patient per dose? 3.6 mL
15. The physician ordered Amoxicillin 10 mg IM q6h. Amoxicillin is
supplied in 125 mg per 5 mL. How many milliliters will you administer
per dose? 0.4 mL
16. Ordered: Atropine 0.6 mg IM. Label reads 0.3mg per 0.6
mL. How many milliliters will you give per dose? 1.2 mL
Fluid Maintenance: Round to the nearest whole number.
17. An infant weighs 40 lbs. What is the required of fluid per day
in mL? 1,409 mL/day
18. Infuse 695 mL over the next 900 min by infusion pump. What
is the IV flow rate in mL/hr? 46 mL/hr
19. Maggie, who weighs 13 kg 1,150 mL/day
20. Reggie, who weighs 24 kg 1,580 mL/day
ATI DOSAGE CALCULATIONS
PRACTICE ANSWER KEY (FULL CHEAT
SHEET LATEST 2021)
Dosage Calculations
Practice
▪ Round kg to nearest hundredth
▪ Round final answer as indicated
▪ Do not round numbers as you are working out the problem (except for
kg)
▪ Show your work
Desired Over Have: Round answer to the nearest tenth.
1. The physician orders to give IV Penicillin 100,000 units. The Penicillin
on hand is labeled 250,000 units/mL. How much of the drug will you
administer? 0.4 mL
2. Administer a dose of Vitamin K (Aquamephyton) 0.5 mg. Available:
Vitamin K 1 mg/1mL. How many mLs would you administer? 0.5
mL
3. Morphine sulfate 6 mg IV push q4h for pain. On hand: Morphine
sulfate 10 mg per mL. How many mLs would you give? 0.6 mL
4. Doctor orders 10 units of insulin per hour via infusion pump. Insulin
100 units in 250 normal saline solution is available. How many mL will
the nurse set the pump on? 25 mL/hr
5. Order: Kanamycin (Kantrex) 1 g po q6h x 3 days. Drug available
Kantrex 500 mg. How many capsules will you administer per day?
8 capsules/day
6. In ectopic pregnancies RhoGam is administered. Order is for 300
mcg IM. On- hand is RhoGam 150mcg/mL. How many milliliters
would you administer? 2 mL
7. Ordered is Misoprostol (Cytotec) 200 mcg po to be given q4h for
24 hours. On-hand is 100 mcg tablet. How many tablets would
you administer each day? 12 tablets/day
This study source was downloaded by 100000817901988 from CourseHero.com on 09-17-2021 19:10:34 GMT -05:00
https://www.coursehero.com/file/32878466/Dosage-Calculations-Practice-Answer-Keydocx/
, 2
8. Methotrexate is given for molar pregnancy in serial IM injections. An
order for Methotrexate 25 mg weekly x 4 weeks was written. On-
hand is Methotrexate 50 mg/2mL vial. How many millimeters would
you administer each week? 1 mL
9. Dexamethasone is used in preterm labor patients. Order is for 6
mg every 12 hrs for 2 doses. On-hand is Dexamethasone 12
mg/2mL vial. How many millimeters would you administer per
dose? 1 mL
This study source was downloaded by 100000817901988 from CourseHero.com on 09-17-2021 19:10:34 GMT -05:00
https://www.coursehero.com/file/32878466/Dosage-Calculations-Practice-Answer-Keydocx/
, 10. Zofran (Ordansetron) 8 mg tablets po q4-6 hrs PRN. On-hand is
Zofran 4 mg.
How many tablets would you administer? 2 tablets
11. The physician ordered Digoxin 250 mcg po qid. The label
reads 1 tablet equals 0.25 mg. How many tablets will you
administer? 1 tablet
12. The nonsteroidal medication naproxen (Naprosyn) has been
prescribed for a patient, 1375 mg/day in divided doses. Each tablet
contains 0.275 g. How many tablets equal this daily dose? 5 tablets
13. The order is to give 600 mg of Ampicillin IM qhr. The directions
for dilution on the 2gm vial reads: Reconstitution with 4.8 mL of
sterile water to obtain a concentration of 400 mg per mL. How many
mL will you administer per dose?
1.5 mL
14. The physician ordered 180 mg of Dilantin po q8h. The patient
weighs 98 lbs.
The label of the drug reads 250 mg per 5 mL. How many milliliters will
you administer to the patient per dose? 3.6 mL
15. The physician ordered Amoxicillin 10 mg IM q6h. Amoxicillin is
supplied in 125 mg per 5 mL. How many milliliters will you administer
per dose? 0.4 mL
16. Ordered: Atropine 0.6 mg IM. Label reads 0.3mg per 0.6
mL. How many milliliters will you give per dose? 1.2 mL
Fluid Maintenance: Round to the nearest whole number.
17. An infant weighs 40 lbs. What is the required of fluid per day
in mL? 1,409 mL/day
18. Infuse 695 mL over the next 900 min by infusion pump. What
is the IV flow rate in mL/hr? 46 mL/hr
19. Maggie, who weighs 13 kg 1,150 mL/day
20. Reggie, who weighs 24 kg 1,580 mL/day
