Guest guest Posted September 9, 2010 Report Share Posted September 9, 2010 What is 's rule, and is it important? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 9, 2010 Report Share Posted September 9, 2010 Dear Meyaiwee, As you know there is a section in my Files for Math Tutorials only and it does contain how to calculate pediatric doses using 's Rule. When calculating pediatric and geriatric dosages, weight is the most contributing factor for accuracy. It is also important when considering specific populations, disease state and metabolism of drugs. This is especially true for pediatric and elderly patients. ’s rule is one way of calculating a child’s dose using the child’s weight. While I have explained the math and the use of 's Rule in my tutorial, I thought it might be a good idea to see what other's think of the importance. I entered key words " 's rule' into Google and found the following: “'s Rule is a medical term referring to a procedure used to calculate the amount of medicine to give to a child aged 2-17. The procedure is to take the child's weight in pounds, divide by 150 lb, and multiply the fractional result by the adult dose to find the equivalent child dosage. For example: If an adult dose of medication calls for 30 mg and the child weighs 30 lb. Divide the weight by 150 (30/150) to get 1/5. Multiply 1/5 times 30 mg to get 6 mg. 's Rule is not used clinically, but it is a popular dosage calculation formula for pediatric nursing instructors.†http://en.wikipedia.org/wiki/'s_rule I cannot say that I agree with the last sentence! I also found the following: “'s Rule Divide the child’s weight (in pounds) by 150 to get the approximate fraction of the adult dose to give to the child. Example: For a 50 pound child give 50/150 (or 1/3) of the adult dose. Therefore, if the adult dose is 30 drops taken 3 times per day, the child’s dose will be 10 drops taken 3 times per day (not 30 drops taken 1 time per day).†http://www.herbaled.org/THM/clarks.html Weight is a much more precise method and must be considered for specific disease states, Hope this helps you, Respectfully, Jeanetta Mastron CPhT BS Founder/Owner of this site Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 9, 2010 Report Share Posted September 9, 2010 Thank you sincerely for helping me understand. I'm scheduled to take m PTCB exam next Wednesday. I bought the book Mosb'ys review for the Pharmacy Technician Certification Examination (2nd ed), and in a practice test in the very beginning it had a question about 's Rule. I was recently in a 6 month pharmacy technician program, and my teacher had mentioned it but had said she was not going to stress too much on the subject. It made me assume it wasn't something to really think about, but i don't think it would hurt to find out about it. I'm new to your study group, so i have yet to go through the math you have posted. Thank you for taking the time to answer me, it's much appreciated. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 9, 2010 Report Share Posted September 9, 2010 You are most welcome, Meyajwee! Your instructor is correct in that it will probably not be stressed on the exam. Doctor's, nurse practioner's, and Pharmacists who order medication will most likely use this formula. But you should know about it and if you were compounding you would use it. The pharmacist may do the math then tell you how much drug to make, mix, count, pour etc. There are techs who do this.It is not commonly used by the average technician. Hope this helps. If you get a question like this,k there will probably only be one like it out of the 90. Jeanetta Mastron CPhT BS F/O From: meyaiwee@... <meyaiwee@...> Subject: RE:'s rule Date: Thursday, September 9, 2010, 5:09 PM Thank you sincerely for helping me understand. I'm scheduled to take m PTCB exam next Wednesday. I bought the book Mosb'ys review for the Pharmacy Technician Certification Examination (2nd ed), and in a practice test in the very beginning it had a question about 's Rule. I was recently in a 6 month pharmacy technician program, and my teacher had mentioned it but had said she was not going to stress too much on the subject. It made me assume it wasn't something to really think about, but i don't think it would hurt to find out about it. I'm new to your study group, so i have yet to go through the math you have posted. Thank you for taking the time to answer me, it's much appreciated. ------------------------------------ Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.