ATI Dosage Calculation and Safe Medication Administration 3.0 - Powdered Medications

ATI Dosage Calculation and Safe Medication Administration 3.0 - Powdered Medications A nurse is preparing to administer cefazolin 500 mg IV bolus. The nurse reconstitutes a vial of cefazolin to yield a final concentration of 100 mg/mL. How many mL should the nurse administer? - ANS 5 mL Rationale: 1. 100 mg/1 mL = 500 mg/x mL 2. 100x = 500 3. x = 5 mL A nurse is preparing to administer amoxicillin 775 mg PO. The nurse reconstitutes a container of amoxicillin to yield a final concentration of 400 mg/5 mL. How many mL should the nurse administer? (Round to the nearest tenth.) - ANS 9.7 mL Rationale: 1. 400 mg/5 mL = 775 mg/x mL 2. 400x = 3,875 3. x = 9.6875 mL 4. x = 9.7 mL (rounded) A nurse is preparing to administer cefaclor 400 mg PO. The nurse reconstitutes a container of cefaclor to yield a final concentration of 187 mg/5 mL. How many mL should the nurse administer? (Round to the nearest tenth.) - ANS 10.7 mL Rationale: 1. 187 mg/5 mL = 400 mg/x mL 2. 187x = 2,000 3. x = 10. mL 4. x = 10.7 mL (rounded) A nurse is preparing to administer pentamidine 1.75 mg IM. The nurse reconstitutes a vial of pentamidine to yield a final concentration of 100 mg/mL. How many mL should the nurse administer? (Round to the nearest tenth.) - ANS 1.8 mL Rationale: 1. 100 mg/1 mL = 175 mg/x mL