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Chapter 9 1. Order: Penicillin G procaine 300,000 units IM q 12h. The label on the vial reads 600,000 units per milliliter. How many milliliters will you administer? 1. 2 mL 2. 0.25 mL 3. 0.5 mL 4. 3 mL Answer: 3 Rationale: 600,000 units per 1 mL. 2. Order: Penicillin G procaine 1.2 million units IM STAT. The label on the vial reads 300,000 units per milliliter. How many milliliters will you administer? 1. 0.25 mL 2. 4 mL 3. 3 mL 4. 0.4 mL Answer: 2 Rationale: 300,000 units per 1 mL. Give 4 mL in two injections. 3. Order: Bumetanide (Bumex) 1 mg IV daily. The label on the vial reads 0.25mg/mL. How many milliliters will you administer? 1. 4 mL 2. 0.4 mL 3. 0.25 mL 4. 2.5 mL Answer: 1 Rationale: 0.25 mg per 1 mL. 4. Order: Gentamicin sulfate (Garamycin) 22.5 mg IV q.8h. The label on the vial reads 40mg/mL. How many mL will you administer? 1. 1.78 mL 2. 5.6 mL 3. 0.178 mL 4. 0.56 mL Answer: 4 Rationale: 40 mg per 1 mL. 5. Order: Ketoroloac tromethamine (Toradol) 20 mg IV q.12h. The label on the vial reads 15 mg/mL. How many mL will you administer? 1. 1.3 mL 2. 0.13 mL 3. 0.75 mL 4. 7.5 mL Answer: 1 Rationale: 15 mg per 1 mL. 6. Order: Claforan (cefotaxime sodium) 750 mg IM q.8h. The directions on the package insert state: "For IM or IV administration reconstitution of the 1g vial with 3 mL yields 300 mg/mL." How many milliliters will you administer? 1. 2.5 mL 2. 0.4 mL 3. 4 mL 4. .025 mL Answer: 1 Rationale: 300 mg per 1 mL. 7. Order: GlucaGen (glucagon) 1.25 mg stat. The directions on the package state: "For IV administration reconstitution of the 1 mg powder with 1.8 mL yields 1 mg/2 mL." How many mL will you administer? 1. 0.625 mL 2. 6.25 mL 3. 2.5 mL 4. 0.25 mL Answer: 3 Rationale: 1 mg per 2 mL. 8. Order: Raptiva (efalizumab) 1.1 mg subcutaneously q week. The directions on the package state: "Reconstitution of the single-use vial with 1.3 ml of the supplied sterile water for injection yields 1.5 mg/1.5 mL." How many mL will you administer? 1. 0.9 mL 2. 1.1 mL 3. 1.3 mL 4. 0.8 mL Answer: 2 Rationale: 1.5mg per 1.5 mL. 9. Order: Ampicillin 165 mg. IV q.8h. The directions on the package state: "Reconstitution of the single-use vial with 4.8 mL yields 250 mg/5 mL." How many milliliters will you administer? 1. 3.3 mL 2. 3.17 mL 3. 8.25 mL 4. 8.6 mL Answer: 1 Rationale: 250 mg per 5 mL. 10. Order: Methylprednisolone succinate 24 mg IM daily. The package insert of the 40 mg Act-O-Vial states, "Press down on plastic activator to force accompanying 1 mL diluent into the lower compartment." How many milliliters will you administer? 1. 960 mL 2. 1.7 mL 3. 6 mL 4. 0.6 mL Answer: 4 Rationale: 40 mg per 1 mL. 11. Order: Heparin sodium 5000 units subcutaneously q.8h. The label on the vial reads "10,000 units/mL." How many milliliters will you administer? 1. 0.2 mL 2. 0.5 mL 3. 2 mL 4. 5 mL Answer: 2 Rationale: 10,000 units per 1 mL. 12. Order: Heparin sodium 8000 units subcutaneously q.12h. The label on the vial reads "10,000 units/mL." How many milliliters will you administer? 1. 1.25 mL 2. 0.8 mL 3. 8 mL 4. 0.125 mL Answer: 2 Rationale: 10,000 units per 1 mL. 13. Order: Heparin sodium 10,000 units subcutaneously stat. The label on the vial reads "40,000 units/mL." How many milliliters will you administer? 1. 4 mL 2. 0.4 mL 3. 0.25 mL 4. 2.5 mL Answer: 3 Rationale: 40,000 units per 1 mL. 14. Order: Lovenox (enoxaparin) 30 mg subcut. b.i.d. for 10 days. The label on the vial reads "80 mg/mL." How many milliliters will you administer? 1. 24 mL 2. 3.75 mL 3. 0.38 mL 4. 240 mL Answer: 3 Rationale: 30 mg × 1 mL/80 mg 15. Order: Heparin sodium 670 units IV q.12h. The label on the vial reads "1000 units/mL." How many milliliters will you administer? 1. 1.5 mL 2. 0.67 mL 3. 0.067 4. 0.15 Answer: 2 Rationale: 670 units × 1 mL/1000 units 16. Order: Polymixin B sulfate 25,000 units/kg/d in four equally divided doses IM. The label on the vial reads 500,000 units. The manufacturer recommends diluting 500,000 units with 5 ml of sterile water. How many milliliters will you prepare for a single dose if the patient weighs 150 pounds? 1. 4.3 mL 2. 7.5 mL 3. 68.2 mL 4. 0.85 mL Answer: 1 Rationale: 68.2 kg × 25,000 units/kg = 1,705,000 units ÷ 4 = 426,250 units = 4.3 mL. 17. Order: Pipracil (piperacillin sodium) 8 g/day IV in four divided doses q.6h. The directions on the package insert state, "Add 4 mL suitable diluent (sterile water or 0.9% NaCl) to yield 1g/2.5mL." How many milliliters will you administer per dosage? The patient weighs 160 pounds. 1. 3.2 mL 2. 20 mL 3. 0.8 mL 4. 5 mL Answer: 4 Rationale: 8 g/day in four divided doses yields an individual dosage of 8 g ÷ 4 = 2g per dose. 18. Order: Eptifibatide (Integrilin)180 mcg/kg IV stat. The manufacturer recommends adding 0.7 mL of sterile water for injection to each 0.75 mg vial, yielding 0.75 mg/mL. The client weighs 185 pounds. How many milliliters will you administer? 1. 44.4 mL 2. 11.4 mL 3. 20.2 mL 4. 202.8 mL Answer: 3 Rationale: 185 lb = 84.1 kg × 180 = 15,136 mcg = 15.1 mg. 19. Order: Vancomycin 40 mg/kg/d divided into q.6h. doses IV. The manufacturer recommends reconstituting 500 mg vial with 10 mL, yielding 50 mg/mL. How many milliliters will you administer for each dose if the client weighs 90 lb? 1. 180 mL 2. 18 mL 3. 8.2 mL 4. 3.4 mL Answer: 3 Rationale: 90/2.2 = 40.9 kg × 40 mg/kg = 1636 mg. Test Bank for Dosage Calculations: A Multi-Method Approach Anthony Patrick Giangrasso, Dolores M. Shrimpton 9780132158626
