Question

PENICILLING For a FINAL Concentration of 250,000 units/mL 500,000 units/ mL 1,000,000 units/mL Add sterile NS: 20 ml 10 mL For I.V. use only 5 mL 5,000,000 units CAUTION: Federal law prohibits dispensing without prescription Stable for 48 hours at room temperature or 7 days in the refrigerator. Read accompanying circular. EXPIRES 09/09/09 The physician's order reads: 1,000,000 units of Pencillin G IV q8h a. How many mL of NS would you use to reconstitute the medication? (give only one answer) b. Based on how you answered Part "a" above, how many mLs are required for one dose? ERYTHROMYCIN Add 19.2mL of sterile water for a final concentration of 250mg/20mL Stable for 48 hours at room temperature or 7 days in the refrigerator. For I.V. use 250mg Read accompanying circular. CAUTION: Federal law prohibits dispensing without prescription. EXPIRES 09/09/09 The physician's order reads: Erythromycin 250 mg IV q8h How many mLs are required for one dose?

Health an Scieince Medical Mathamatics Class.

Answer 1

3.

Order dose 1,000,000 units

a. A nurse will use 5 ml of medication to reconstitute the medication.

b. according to the above dilution method, the nurse will get a concentration of 1,000,000 units/ml

So, the nurse will administer 1 ml

4.

Order dose - 250mg IV 8 hourly

According to the label after adding 19.2 ml of sterile water the concentration will be 250mg/20 ml.

So, nurse will administer 20 ml per dose.