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Nursing Dosage Calculation Practice Problems, Exercises of Pharmacy

Waynesburg UniversityPharmacy

Calculations worksheet on drug with answers key

Typology: Exercises

2020/2021

Uploaded on 04/20/2021

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http://www.sunydutchess.edu/academicservices/files/DosageQuestions40Questions.doc August 2011
Nursing Dosage Calculation Practice Problems
Hints for Converting
1) Memorize equivalents / conversions.
2) Read carefully.
3) If the dose is based on weight, convert patient’s weight to correct unit if
necessary, then find dose based on patient’s weight.
4) Set up proportion – Desired dose over the available dose
Desired Dose or D
Available A
a) Label all terms with correct units.
b) Are you comparing like units?
If not, convert to like units.
5) Estimate the answer.
6) Follow basic math principles to find value of unknown.
7) Label all answers with correct units.
(Are you reporting the unit requested?)
8) Check all work, and think logically about the answer obtained. Does it
make sense?
pf3
pf4
pf5

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Download Nursing Dosage Calculation Practice Problems and more Exercises Pharmacy in PDF only on Docsity!

Nursing Dosage Calculation Practice Problems

Hints for Converting

  1. Memorize equivalents / conversions.

  2. Read carefully.

  3. If the dose is based on weight, convert patient’s weight to correct unit if necessary, then find dose based on patient’s weight.

  4. Set up proportion – Desired dose over the available dose

Desired Dose or D Available A

a) Label all terms with correct units. b) Are you comparing like units? If not, convert to like units.

  1. Estimate the answer.

  2. Follow basic math principles to find value of unknown.

  3. Label all answers with correct units. (Are you reporting the unit requested?)

8) Check all work, and think logically about the answer obtained. Does it make sense?

Sample Answers

20 = 10 x

x = 2 cc

Desired Dose Available Dose

  1. set up proportion
  2. like units are being compared, therefore use basic math principles
  3. reduce the left side
  4. cross multiply
  5. cc is the unknown unit and is also requested unit therefore stop.

n= 0.5 tablets or ½ tablets

Desired Dose Available Dose

  1. set up proportion
  2. like units are being compared, therefore use basic math principles
  3. simplify the left side
  4. tablet is the unknown unit and is also requested unit therefore stop. 6 )

=

10 kg = x

x = gr or gr 2 ½

x = 30 cc

  1. Dose is based on kg therefore convert patient’s weight in lbs to kg.

  2. Find dose to give 10 kg patient; set up proportion and solve

  3. Patient needs 2½ grains ; set up D/A proportion

  4. Measures on left are not in same unit so change gr mg

= → x = 150 mg

  1. Rewrite and solve for x.

Answer is in unit requested therefore stop.

  1. ORDER: Drug N 15 mg per kg body weight P.O. AVAILABLE: Drug N 60 mg per cc BODY WEIGHT: 220 lbs GIVE: _____________________cc

  2. The doctor prescribed Tagamet 400 milligrams orally. The Tagamet label reads Tagamet liquid 200 milligrams in 5 milliliters. How many teaspoons will be given?

  3. ORDER: Drug Q 300,000 units I.M. AVAILABLE: Drug Q 5,000,000 units in 25 cc GIVE: _________________cc

  4. ORDER: Drug S 0.15mg P.O. AVAILABLE: Drug S 0.3 mg tablets GIVE: _______________ Tab(s)

  5. ORDER: Drug T 50 mg P.O. AVAILABLE: Drug T 25 mg per 4 cc GIVE: ________________ cc

  6. ORDER: Drug U 0.4 g I.M. AVAILABLE: Drug U 500 mg in 2 cc GIVE: ______________ cc

  7. Gantrisin 0.75g (oral) is ordered. On hand is Gantrisin 250 mg tablets. How many tablets would you give the patient?

  8. ORDER: Drug Y 85 mg I.M. AVAILABLE: Drug Y 100 mg in 2 cc GIVE: _______________cc

  9. ORDER: Drug Z 30 mg per kg body weight P.O. AVAILABLE: Drug Z 15 mg per cc BODY WEIGHT: 22 lbs GIVE: ________________cc

  1. ORDER: Drug B 120 mg P.O. AVAILABLE: Drug B 60 mg per 15 cc GIVE: ______________ounce(s)

  2. ORDER: Drug D 0.125 mg S.Q. AVAILABLE: Drug D 0.500 mg per 2 cc GIVE: _________________ cc

  3. DESIRED: 200,000 units AVAILABLE: 10,000,000 units per 25 cc GIVE: ________________cc

  4. DESIRED: 60 mg AVAILABLE: 50 mg per 10 cc GIVE:______________ cc

  5. DESIRED: 600 mg AVAILABLE: 1000 mg per 4 cc GIVE:________________ cc

  6. The doctor orders 80 mg of liquid cough syrup. The cough syrup is labeled 100 mg in 5 ml. How many ml should the patient receive?

  7. DESIRED: 15 mg per kg body weight AVAILABLE: 25 mg per 1 cc BODY WEIGHT: 5.5 lbs GIVE: _________________ cc

  8. DESIRED: 130 mg AVAIALBLE: 200 mg per 2 cc GIVE: ________________ cc

  9. DESIRED: 750 mg AVAILABLE: 1 g per 2 cc GIVE: _______________ cc

  1. DESIRED: 450 mg P.O. AVAILABLE: 300 mg per tablet GIVE: _______________ tab(s)

  2. DESIRED: 75 mg P.O. AVAILABLE: 15 mg per 2 cc GIVE: ______________ oz

  3. The doctor ordered 400 mg of Ibuprofen every 6 hours. The label reads:

Ibuprofen tablets USP, 200 mg tablets

What should the nurse administer to the patient every 6 hours?

  1. A client is ordered 37.5 milligrams of Dothiepin. 75 milligram tablets are available. How many tablets will you give?

Answers

  1. 2 cc 21) 0.5 cc 2)0.5 tab 22) 12 cc
  2. 4 cc 23) 2.4 cc
  3. 3 cc 24) 4 ml
  4. 1.8 cc 25) 1.5 cc
  5. 30 cc 26) 1.3 cc
  6. 2 capsules 27) 1.5 cc
  7. 4.5 tabs 28) 1 cc
  8. 0.7 cc 29) 150 cc
  9. 25 cc 30) 0.5 cc
  10. 2 tabs 31) 100 cc
  11. 1.5 cc 32) 0.25 cc
  12. 0.5 tab 33) 1 cc
  13. 8 cc 34) 0.8 cc
  14. 1.6 cc 35) 0.5 cc
  15. 3 tabs 36) 5 cc
  16. 1.7 cc 37) 1.5 tabs
  17. 20 cc 38) 0.33 oz
  18. 1 oz 39) 2 tabs
  19. 0.5 cc 40) 0.5tabs

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