Calculations Chapter 8

1. Calculations Chapter 8 Calculate Doses of Liquid Oral and Parenteral Medications

2. Objectives • Calculate doses of medications and additives that come in liquid dosage forms.

3. Giving Liquid Medications • Injectable • IV Bag • IV Piggy Back • Injection (IM, IVP, SQ, IT, ID, etc) • Oral • Medicine Cup • Oral Syringe • TSP/TBSP

4. How to…….. Divide 2 1 Multiply 3 X

5. A physician orders amoxicillin 900 mg to be divided into doses tid. • What is the volume of medication for the day? • What is the volume of medication for each dose? • What utensil should be used for administration?

6. A physician orders digoxin elixir 125 mcg poqam. Use the following label for calculations. • What is the total volume of medication that should be given each day? • What utensil should be used for administration? Pick the correct utensil and fill in the correct amount. (See Next Slide)

8. A physician orders haloperidol 5 mg stat and then 2 mg tid. • What volume of medication should be administered to the patient stat? What volume of medication should be administered in following doses? • Can the same container of medication be used until it is empty? • Choose the correct utensils for the stat dose and the following doses.

10. A physician orders Ceclor 500 mg stat then 250 mg tid. Use the following label for calculations. • What is the volume of the stat dose? What is the volume of the following doses? • Which utensil should be used for the stat dose? • What utensil should be used for the following doses?

11. A physician orders atropine sulfate 0.1 mg IM stat. The label is atropine 400 mcg/mL. • What is the stat dose volume to be administered? • Which syringe should be used to administer this medication? • Show the proper volume of medication on the chosen syringe.

13. A physician orders erythromycin oral suspension 500 mg stat then 250 mg tid. The label reads erythromycin 200 mg/5 mL. • What is the volume of medication that should be administered to the patient as a stat dose? What is the volume of medication that should be administered in subsequent doses? • What is the correct utensil for the stat dose? • What is the correct utensil for the subsequent doses?

14. A physician orders nitroglycerin 1500 mcg IV in 50 mL of D-5-W stat. The label is nitroglycerin ampules 50 mg/10 mL. • What is the dose that should be added to the IV fluids? • What size syringe should be used to add the medication to the fluids?

15. A physician orders nitroglycerin 1500 mcg IV in 50 mL of D-5-W stat. The label is nitroglycerin ampules 50 mg/10 mL. • What is the dose that should be added to the IV fluids? • What size syringe should be used to add the medication to the fluids?

17. A physician orders V-Cillin K 375 mg tid. The label is V-Cillin K 125 mg/5 mL. • What is the volume of medication that should be administered with each dose? • What is the most appropriate utensil for administration shown below? • How can this be administered most efficiently using household utensils? • Indicate the correct volume of medication on the most appropriate utensil.

19. Questions?