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Advanced Dosage CalculationDr. Rhonda ManevalAssociate Professor of Nursing
Objectives•Accurately calculate IV push medication drug dosages.•Implement steps to ensure safe administration of IV push medications including: correct dilution, infusion rate, and compatibility with other medications and IV fluids.•Define the concept of titration•Perform calculations needed for the administration of titrated drugs.
Advanced Intravenous Calculations: IV Push •Dosage calculations for IV push injections are the same as calculations for other parenteral injections. When giving medications IV push, it is important to follow the manufacturer or hospital guidelines for the rate of administration.
IV Push MedicationsRequire extra vigilance when administeringBe aware of high alert drugs such as potassium, calcium, magnesium, 50% dextrose and narcotics.Additional rights:Right dilutionRight flushRight speedRight monitoring
IV Push MedicationsExample:•Order: Dilantin 200 mg IV now•Supply: Dilantin 50 mg per mL Step 1: Calculate amount to be given
IV Push MedicationsStep 2: How fast can the medication be given?Refer to literature:Lexicomp: “The maximum rate of IV administration is 50 mg/minutes. Highly sensitive patients (eg. Elderly, patients with pre-existing cardiovascular conditions) should receive phenytoin more slowly (eg. 20 mg/minute).”