1 Dosage Calculations Worksheet #3 2 1. Ordered: Cefazolin 450 mg IV TID Supplied: see label. What volume will you administer per dose? 2. Ordered: Humulin 30/70 insulin 40 units subcut amac. How many units of short acting insulin are in the above dose? What syringe would be used for this volume? Insulin Draw an arrow at the correct measurement: Page 1
2 3. Ordered: 3 strength Isomil 400mL TID. The total volume of the 24 hour solution will have what 5 volume of solute mixed with what volume of solvent? Isomil is supplied in 233 ml cans. 4. Ordered: KCl 18 meq po BID. Supplied: 10 meq per 5 ml. What volume will you administer for one dose? What syringe would you use? Draw an arrow at the correct measurement. ORAL USE 5. ORDERED: Amoxicillin 120 mg po TID SUPPLIED: see label. What volume will you administer per dose? Page 2
3 6. ORDERED: Methylprednisolone 130 mg IM q12 h SUPPLIED: see label. What volume will you administer per dose? Draw an arrow at the correct measurement: 7. Ordered: Humulin 30/70 insulin 50 units subcut amac. How many units of intermediate acting insulin are in the above dose? 8. Ordered: Isocal ½ strength 240 ml as a nutritional supplement. Each can contains 240 milliliters. How many milliliters of water should be added to the Isocal for a ½ strength solution? Page 3
4 9. Ordered: Stavudine 20 mg po daily x 7 days Supplied: see label What volume will you administer for one dose? What is the concentration/ml? How many mg in the whole 200 ml bottle? What syringe would you use? How many days of medication are there? How many ml are left after course of treatment (7 days)? Draw an arrow at the correct measurement. www.dailymedplus.com ORAL USE 10. Ordered: Humulin 30/70 insulin 30 units subcut amac. How many units of intermediate acting insulin are in the above dose? Page 4
5 11. Ordered: Tazidime 3000 mg IM TID Supplied: 6 g powdered vial Reconstitution: For IV administration, add 6.4 ml NS for a total volume of 7 ml. For IM administration, add 1.5 ml of NS for a total volume of 1.8 ml How many ml will you administer per dose? 12. Ordered: 3 strength Ensure 900 ml via feeding tube over the next 8 hrs. Ensure is supplied in 242 ml 4 cans. What amount of solvent is required for this concentration? 13. Ordered: Ceclor 93.5 mg PO BID Supplied: See Label How many ml will you administer per dose? 14. Ordered: 40% strength debridement solution 250 ml for cleansing effected area. How many ml of solute and solvent? Page 5
6 15. Ordered: Heparin 6500 units subcut BID Supplied: see vials What volume of medication is needed for: 10,000 unit/ml vial: 5,000 unit/ml vial: 1,000 unit/ml vial: Which volume of fluid is appropriate for a subcut injection? What syringe would be used for this amount? Draw an arrow at the correct amount: Page 6
7 16. Ordered: Potassium Chloride 100 meq IV in 1 L NS over 6 hours Supplied: see label How many ml will you administer in 1 L NS? 17. Ordered: Ceftazidime 750 mg IV BID Supplied: see label What is the concentration/ml for IM admin? What is the concentration/ml for IV admin using 5 ml sterile water? How many ml will you administer for one dose using 5 ml sterile water? What is the concentration/ml for IV admin using 10 ml sterile water? How many ml will you administer for one dose using 10 ml sterile water? Page 7
8 18. Ordered: Furosemide 25 mg IV QID Supplied: see label How many ml will you administer in one dose? 19. Ordered: Insulin Humulin R 8 units subcut amac (breakfast) and pmac (dinner), Insulin 30/70 20 units subcut ordered ac lunch, Insulin NPH 14 units subcut ordered at hs. How many units of short acting insulin are given in one day? How many units of intermediate acting insulin are given in one day? Page 8
9 20. Ordered: Morphine 7.5 mg IM stat Supplied: see label How many ml will you administer in one dose? ANSWERS: 1. 2 ml/dose 2. 12 units; Insulin syringe 3. 720 ml Isomil (solute)/480 ml H2O (solvent). 4. 9 ml/dose; Use 10 ml ORAL USE syringe (remember KCl has to be further diluted before administration) 5. 3 ml/dose 6. 2.1 ml/dose 7. 35 units 8. 120 ml of water 9. 20 ml/dose; 1 mg/ml; 200 mg; 20 ml ORAL USE syringe; 10 days of medication; 60 ml 10. 21 units 11. 0.9 ml 12. 225 ml 13. 2.5 ml/dose 14. 100 ml solute, 150 ml solvent 15. 0.65 ml; 1.3 ml; 6.5 ml; 0.65 ml; Tuberculin 16. 50 ml/1 L NS 17. 280 mg/ml; 180 mg/ml; 4.17 ml = 4.2 ml/ dose; 95 mg/ml; 7.89 ml = 7.9 ml/dose Page 9
18. 2.5 ml/dose 19. 22 units/day; 28 units/day 20. 0.75 ml/dose 10 Page 10