Chapter 5: Liquids for Injection PowerPoint Presentation

Chapter 5 Liquids for Injection Copyright © 2016 Wolters Kluwer All Rights Reserved Syringes and Rounding  3-mL syringe o Carry out arithmetic to the hundredths place and then round off the answer to the nearest tenth.  1-mL syringe o Carry out arithmetic to the thousandths place and t...

Chapter 5 Liquids for Injection Copyright © 2016 Wolters Kluwer All Rights Reserved Syringes and Rounding  3-mL syringe o Carry out arithmetic to the hundredths place and then round off the answer to the nearest tenth.  1-mL syringe o Carry out arithmetic to the thousandths place and then round off the answer to the nearest hundredth. Copyright © 2020 Wolters Kluwer All Rights Reserved Calculating Liquid Injections Copyright © 2020 Wolters Kluwer All Rights Reserved Question #1 The patient is to receive promethazine 25 mg IV q6h prn. The medication is supplied as 12.5 mg/mL. How many milliliters does the nurse need to draw up in the syringe? A. 1 mL B. 1.2 mL C. 1.7 mL D. 2 mL Copyright © 2020 Wolters Kluwer All Rights Reserved Answer to Question #1 Copyright © 2020 Wolters Kluwer All Rights Reserved Insulin Injections  Need to know onset, peak, and duration of different types of insulin.  Mixed insulin combines rapid and intermediate insulin.  Never shake insulin vials.  Gently rotate cloudy insulin vials between hands to resuspend the particles.  Regular insulin is the only insulin that is given IV. Copyright © 2020 Wolters Kluwer All Rights Reserved Preparing an Injection Using an Insulin Syringe  What is the order?  What is the supply?  What syringe should be used? Copyright © 2020 Wolters Kluwer All Rights Reserved Mixing Two Insulins in One Syringe  Always draw up the regular insulin into the syringe first.  The total number of units in the syringe equals the two insulin orders added together. Copyright © 2020 Wolters Kluwer All Rights Reserved Steps to Mixing Two Insulins in One Syringe  Inject into the NPH vial the amount of air equal to the amount of NPH insulin.  Inject into the regular vial the amount of air equal to the amount of regular insulin.  Withdraw the correct amount of regular insulin (“clear”).  Withdraw the correct amount of NPH insulin (“cloudy”). Copyright © 2020 Wolters Kluwer All Rights Reserved Question #2 Is the following statement true or false? Always draw up the regular insulin into the syringe first. Copyright © 2020 Wolters Kluwer All Rights Reserved Answer to Question #2 True Always draw up the regular insulin into the syringe, then the NPH. “Clear to cloudy” is a way to remember this. Copyright © 2020 Wolters Kluwer All Rights Reserved Sliding-Scale Insulin  Method of administration based on blood glucose result  Blood glucose result comes from a finger-stick and some type of Accucheck monitor. Copyright © 2020 Wolters Kluwer All Rights Reserved Question #3 Order: Regular Humulin insulin 20 units and NPH Humulin insulin 12 units every day subcutaneously Supply: Regular Humulin insulin 100 units/mL and NPH Humulin insulin 100 units/mL What will be the total units in the syringe? A. 12 units B. 20 units C. 32 units D. 42 units Copyright © 2020 Wolters Kluwer All Rights Reserved Answer to Question #3 C. 32 units Regular Humulin insulin 20 units and NPH Humulin insulin 12 units every day subcutaneously for a total of 32 units Copyright © 2020 Wolters Kluwer All Rights Reserved