PLEASE HELP! Diluent problems!Register Today!
This is a discussion on PLEASE HELP! Diluent problems! in Nursing and Patient Medications, part of General Nursing ... Hi everyone. I'm new here and hoping for some help! I am a new RN and am getting ready to start my...by AshRNAthena Dec 30, '10Hi everyone. I'm new here and hoping for some help! I am a new RN and am getting ready to start my first job. We received a study guide for a test we will have to take IN THREE DAYS and I HAVE NO IDEA how to do some of these problems. I am so stressed out already. PLEASE HELP!
1. The physician has ordered potassium penicillin G 125,000 units by injection for your patient. You have availablea vial of powdered potassium penicillin G labeled 1,000,000 units. Please solve one of the dilutions using the label below.
Preparation of solution:
Diluent added Final Concentration
9.6 ml 100,000 units/ml
4.6 ml 200,000 units/ml
3.6 ml 250,000 units/ml
I only need to know how to do one, but I don't know how to do ANY!
2. Ampicillin 1.5gm is ordered every 4 hours. You add 6.8 mL sterile H20 as a diluent to the 2 gm vial creating a solution concentration of 250 mg/ml. How many mls are needed for a 1.5 gm dose?
3. The physician has ordered potassium penicillin 3,000,000 units by injection for your patient. You have available a vial of powdered potassium penicillin G labeled 5,000,000 units.
Preparation of solution:
Add diluent: Total concentration
23 ml 200,000 units/ml
18 ml 250,000 units/ml
8 ml 500,000 units/ml
3 ml 1,000,000 units/ml
I only have to choose one diluent and one concentration, but I don't know WHAT to do!
ANY HELP IS SO APPRECIATED! I feel so dumb and unprepared!!
Print and share with friends and family.
Compliments of allnurses.com.
http://allnurses.com/showthread.php?t=523613©2013 allnurses.com INC. All Rights Reserved.
- 1,747 Views
- Jan 1, '11 by WSU_Ally_RNFor all of these, remember your equation
(Ordered Dose/What you have)XmL
So for the first question, if you chose to use the 9.6mL dilutent, the equation would look like this:
(125,000 units/100,000 units)X9.6 mL
I use that equation often... its a good one to know. Good luck!
- Mar 7, '11 by JonathankOld post on a dead board, but just for giggles:
1. I'd go with the bottom dilution to avoid having to give multiple shots. If 3.6 mL has 250K units and 125K units are ordered, give 1.8 mL.
2. 250 mg/mL = 0.25 g/mL = 1.5 g/6 mL Give 6 mL.
3. Use the bottom dilution again for the same reason as in #1.
1M units/mL = 3M units/3 mL. Give 3 mL.