Guest guest Posted July 15, 2003 Report Share Posted July 15, 2003 I had a hard time with this one too. I couldn't do it on my own and I still have a bit of a hard time following your method...but it does make sense. I hope I can replicate something like this on the test. But...I think that in your final ratio/equation, you should have 510ml instead of 500ml. YOu have 10 ml of the active drug and 500ml of the dextrose solution. thank you so much for responding to the question. I was cross-eyed trying to work this one. Standing on my head didn't work either! Some of these just baffle me. Thanks again > Hi, > > Several ways to solve this one. One way would be to use > ratio/proportion. In solving this we need to realize that 1:5000 > means 1 gram of Active Drug / 5000 ml solution. > > 1. Find out how many mcg you actually have in the IV > > setup: 1g / 5000 ml = x g / 10 ml > x = 0.002 g > > setup: 1 g / 1000 mg = 0.002 g / x mg > x = 2 mg > > setup: 1 mg / 1000 mcg = 2 mg / x mcg > x = 2000 mcg > > 2. Find out flow rate > > setup: 2000 mcg / 500ml = 5 mcg / x ml > x = 1.25 ml > > Not sure where we got 1.28 ml / minute. Since that is the closest > answer I would choose it. > > Respectfully, > > Joe Medina, CPhT > http://www.techlectures.com > > -------------- > I am having problems working the following problem: > > An IV infusion contains 10ml of a 1:5000 solution of Isoproterenol > hydrochloride and 500ml of a 5% dextrose injection. At what flow rate > should the infusion be administered to provide 5mcg of isoproterenol > hydrocholride per minute? > a. 0.45 ml per minute > b. 1.28 ml per minute > c. 2.64 ml per minute > d. 4.12 ml per minute > > I normally do not have a problem with flow rates, but this one I am > struggling with. Thanks for your help! > > ---------------- Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 15, 2003 Report Share Posted July 15, 2003 From: " Jeanetta Mastron CPhT BS Chemistry " <rxjm2002@...> Date: Tue Jul 15, 2003 9:17 pm Subject: Re: Math Problem ADVERTISEMENT Dear Joe , Marenelson, and Specksock: The REAL answer IS 128 ml/minute because one MUST consider the fact that 500ml of D5W was added to 10 ml of Isoproterenol HCl solution. Great Call Specksock! First one must find out how many mcg are in the 10 ml of the Isoproterenol by either ratio proportion or a string conversion. I will show both: Conversion Method: X gram------1 gram ------- = ------- 10 ml------5000 ml OR String Conversion Method: 10 ml of 1:5000 Isoproterenol Sol 10 ml X 1 gram --------------- --------5000 ml 0.002 gram = 2 mg = 2000 mcg Therefore 2000 mcg are in the 10 ml of 1gm/5000ml Isoproterenol. It DOES NOT MATTER HOW MUCH DEXTROSE IN Weight IS IN THE NEW " Combined " SOLUTION. The question is not about the Dextrose! It is about the Isoproterenol!!!! 500ml of D5W + 10 ml of 1:5000 Isoproterenol = 510 ml of Combined solution. The New final volume is 510 ml of solution. But this new solution has 2000 mcg of Isoproterenol!!!! This is 2000mcg Isoproterenol/510 ml Combined Solution Settting up a ratio/porportion tells us how muchsolution would contain 5 mcg: 2000 mcg-------- 5 mcg ------------ = --------- 510 ml---------- X ml Cross Multiply = 510 x 5 / 2000 answer is 1.275 ml which is 1.28 ml Therefore every 1.28 ml of the Combined solution contains 5 mcg of drug Isoproterenol (contains = is equal to). If you wanted 5mcg /min then you would need to infuse 1.28 ml every minute . 5mcg /1 min = 1.28 ml of combined solution /minute I have correctd the problem here. I hope that this helps you out!!! Respectfully, Jeanetta Mastron CPhT Copyright July 15, 03 Jeanetta Mastron > > Hi, > > > > Several ways to solve this one. One way would be to use > > ratio/proportion. In solving this we need to realize that 1:5000 > > means 1 gram of Active Drug / 5000 ml solution. > > > > 1. Find out how many mcg you actually have in the IV > > > > setup: 1g / 5000 ml = x g / 10 ml > > x = 0.002 g > > > > setup: 1 g / 1000 mg = 0.002 g / x mg > > x = 2 mg > > > > setup: 1 mg / 1000 mcg = 2 mg / x mcg > > x = 2000 mcg > > > > 2. Find out flow rate > > > > setup: 2000 mcg / 500ml = 5 mcg / x ml > > x = 1.25 ml > > > > Not sure where we got 1.28 ml / minute. Since that is the closest > > answer I would choose it. > > > > Respectfully, > > > > Joe Medina, CPhT > > http://www.techlectures.com > > > > -------------- > > I am having problems working the following problem: > > > > An IV infusion contains 10ml of a 1:5000 solution of Isoproterenol > > hydrochloride and 500ml of a 5% dextrose injection. At what flow > rate > > should the infusion be administered to provide 5mcg of > isoproterenol > > hydrocholride per minute? > > a. 0.45 ml per minute > > b. 1.28 ml per minute > > c. 2.64 ml per minute > > d. 4.12 ml per minute > > > > I normally do not have a problem with flow rates, but this one I > am > > struggling with. Thanks for your help! > > > > ---------------- Quote Link to comment Share on other sites More sharing options...
Guest guest Posted June 13, 2004 Report Share Posted June 13, 2004 Great job Pam! Yes I agree with your answer. Dear Pam and ALL, As an educator I look for as many approaches to a problem in order to 'reach' all students who learn in a variety of ways. Suttle differences can make a difference for one particular student. This does not make one approach more correct than another, just different! Here is another approach to the same problem. We can not fit 10 mg of drug into an 8 mg container. So we must use the 15 mg containers, fill then each to 10 mg (only), in addition to the 125 x 12 mg containers. Now let us recall that these 12 mg containers must be filled with 10 mg ONLY NOT 12 mg….. 125 x 10 mg = 1250 mg total of the 32.3 grams of bulk drug is accounted for. 323 grams = 32.3gm x 1000 mg/gm = 32,300 mg total to be prepackaged. 32,300 mg – 1250 = 31050 mg unaccounted for. 31,050 mg divided by 10 mg in each container = 3105 more containers that will hold 10 mg each. Therefore 3,105 x 15 mg size containers are needed for the prepackaging to be completed. In addition to providing another approach to the same problem, I am also providing insurance that a member of the site has performed the calculations accurately. As you know this site is self-governing. And as such it is my obligation to be sure that all answers are correct and to confirm them. If my moderator Dora, does not confirm the correctness, then I do it. We work in tandem. So this insures YOU the user of this site that the answers that are presented by anyone (TEXPERT or not) are CORRECT! Hope this helps you or others ….. Respectfully, Jeanetta Mastron CPhT BS Chem Pharm Tech Educator Founder/Owner > Hi, I have a few math problems and I would like if someone could explain how they got the answers. > > 1. A bulk medication is to be prepackaged into unit dose units. A total of 32.3 g is to be divided into 10 mg units. You have containers that will hold 8 mg, 12 mg, and 15 mg. You discover you have 125- 12 mg containers. How many more containers will be needed and of which size? > > thanks, > Jan > > ] Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 8, 2005 Report Share Posted July 8, 2005 The answer to question 1 is 4mg number A. I multiplied 3x4-=12 or divided 3 by 12 to get your answer. Question number 2 I think is X but I'm not sure. --- alsobrook00 <alsobrook00@...> wrote: > If a dose for a drug is 12mg but the drug come only > as a 3mg tablet, > how many tablets are needed for the dose? > > > A. 4 > B. 5 > C. 3 > D. 12 > > > 4 is to IV as 10 is to > > A. L > B. M > C. X > D. C > > > ____________________________________________________ Sell on Auctions – no fees. Bid on great items. http://auctions./ Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 8, 2005 Report Share Posted July 8, 2005 you arew correct on both melissa.... X is the roman numeral for the number 10. just think of malcolm " X " my best friend used to ask me what happened to the other nine (9) and if they were still alive. that's how i remembered it, lol!!!! Lennon <lissl68@...> wrote:The answer to question 1 is 4mg number A. I multiplied 3x4-=12 or divided 3 by 12 to get your answer. Question number 2 I think is X but I'm not sure. --- alsobrook00 <alsobrook00@...> wrote: > If a dose for a drug is 12mg but the drug come only > as a 3mg tablet, > how many tablets are needed for the dose? > > > A. 4 > B. 5 > C. 3 > D. 12 > > > 4 is to IV as 10 is to > > A. L > B. M > C. X > D. C > > > ____________________________________________________ Sell on Auctions – no fees. Bid on great items. http://auctions./ Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2005 Report Share Posted July 11, 2005 Is the answer C? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2005 Report Share Posted July 11, 2005 Lets break it down: 800 mg qd for first 3 days: 1 dose is 800 mg = 2 tabs/dose x 3 days = 6 tabs 400 mg bid x 2 days: bid = 2 doses/day x 2 days = 4 tabs 400 mg qd for the remainder of the mo. 1 dose/dayx (30 days - 5 days) 25 days = 25 tabs 6+4+25 = 35 tablets Hope that helps Anne LaVance, BS, CPhT Texpert Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 12, 2005 Report Share Posted July 12, 2005 GREAT Minds think alike,! I did not see your response before/when I did my calculations and my posted reply! If I had I would not feel the need to do it again! Thanks for your input and taking the time Anne! Well I deciced to read all the threads before I respond! Thanks again! Jeanetta Mastron CPhT BS Founder/Owner and Texpert InstructorCPhT@... wrote: Lets break it down: 800 mg qd for first 3 days: 1 dose is 800 mg = 2 tabs/dose x 3 days = 6 tabs 400 mg bid x 2 days: bid = 2 doses/day x 2 days = 4 tabs 400 mg qd for the remainder of the mo. 1 dose/dayx (30 days - 5 days) 25 days = 25 tabs 6+4+25 = 35 tablets Hope that helps Anne LaVance, BS, CPhT Texpert Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Math Tutorial From a Post - Given the Grams in a solution what is the final volume? Posted by: FROM: spokane94@... DATE: Sat, 20 Sep 2008 23:25:37 -0000 SUBJECT: math problem How much 1/2NS solution can be made using 4.5g of NaCl? Possible answers are: a. 0.25 L b. 0.5 L c. 1.0 L d. 1.5 L Solution posted by Jeanetta Mastron CPhT BS : First of all one must KNOW (commit to memory) and understand (rationalize the math) the following conversion factors: 1 NS = 0.9 % NaCl 1/2 NS = 0.45 % NaCl 1/4 Ns = 0.2 % NaCl Worth repeating: 1/2 NS = 0.45 % NaCl Key Recall #1: The number of grams of a substance in 100 ml or 100 grams of a total is equal to the percentage of that substance: 1/2 NS = 0.45% NaCl, which is therefore equal to: 0.45grams NaCl in 100 ml solutionof NaCl and water (H20). Key Recall #2: The part over the whole divided multiplied by 100 = percent 0.45 grams NaCL.................= (the Part) ------------------------------- = (over/divided by) X 100 = 0.45% NaCl 100 ml solution of NaCl and H20.= (the Whole) So restate this in a ratio/proportion statement (here are four ways you may state it in English but they all mean/equate to the same in the universal language of math): IF 0.45 grams of NaCl are found in 100 ml of solution (of NaCl + H20) , THEN how many ml (X ml) of H20/NaCl solution are made when using 4.5 grams NaCl? Or IF 100 ml of solution (of NaCl + H20) contains 0.45 grams of NaCl, THEN how many ml (X ml) of H20 + NaCl solution are made if you use 4.5 grams NaCl? IF 100 ml of solution (of NaCl + H20) contains 0.45 grams of NaCl, THEN how many ml (X ml) of H20 + NaCl solution will 4.5 grams NaCl make? IF 100 ml of solution (of NaCl + H20) contains 0.45 grams of NaCl, THEN how many ml (X ml) of H20 + NaCl solution will be made if the solution contains 4.5 grams NaCl? Set up: 0.45 grams NaCl........4.5 gram NaCl ------------------ = -------------------- 100 ml (H20+NaCl)......X ml (H20+NaCl) Replace the following " (H20+NaCl) " with the word 'solution' or 'sol' for short. Cross Multiply: 100 ml sol x 4.5gms NaCl ------------------------ = Xml sol 0.45 gm NaCl Xml sol = 1000 ml sol or 1 L sol of NaCl + H20 Answer to the problem: c. 1.0 L Hope this helps, You can find this in the File, Folder Math Only Tutorials inspired by posts Jeanetta Mastron CPhT BS Chemistry Pharm Tech Educator Founder/Owner of The above solution is copyrighted by Jeanetta Mastron CPhT BS on September 20, 2008 > > Hello Jeanetta, > Here is the problem that I need help with. > > Correct! > 911) How much 1/2NS solution can be made using 4.5g of NaCl? > > 0.25 L > 0.5 L > 1.0 L > 1.5 L > > I came up with 0.9 L. But the answer doesn't match with the answers > above. > > this is what I did: 0.5 g/100 ml = 4.5 g/x ml > x= 0.9 L > > Please help. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 I am going to see which IV tech would like to tackle this one! Jeanetta Mastron CPhT BS Founder/Owner of this site > > Hello Jeanetta, > > I need your help with some math problem. > > What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? > > please help me > thank you > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 This is much like the problem I gave you with Component A, B and C Are you sure that you can not do this one on your own? Give it a try now! Come on! I got you started! Send me a private email with yoru phone number and I will call you. Since we happen to be on line at the same time! You too juchku@... Jeanetta > > I need help with this one: > > A cough and cold tablet contains the following amounts of active > ingredients: > acetaminophen 325 mg > chlorpheniramine maleate 2 mg > pseudoephedrine hydrochloride 30 mg > dextromethorphan 15 mg > guaifenesin 100 mg > > The pharmacy has 2 kg of acetaminophen, 5 g of chlorpheniramine > maleate, and an unlimited supply of the other ingredients. How many > tablets can be prepared? > > I have no idea on this one. Please help. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Hi jeanetta need help on A drug is available in the following strengths and dosage forms 125mg tablets, 250mg capsules, 125mg/5ml liquid. A child weighs 55 lb and the recommended doses is 10mg/kg/24hr ( to be given in 6 or 12 hour intervals). what would be dosage form math problem Hello Jeanetta, I need your help with some math problem. What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? please help me thank you Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 WOW! The site ahas not been this active in a long time. Give me a minute and I will get this for you still working on a few other private emails. Jeanetta > > Hi jeanetta > > need help on > > A drug is available in the following strengths and dosage forms 125mg tablets, 250mg capsules, 125mg/5ml liquid. > A child weighs 55 lb and the recommended doses is 10mg/kg/24hr ( to be given in 6 or 12 hour intervals). > what would be dosage form > > > math problem > > > Hello Jeanetta, > > I need your help with some math problem. > > What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? > > please help me > thank you > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Dear Spokane94 and All, Go to The files section for a tutorial on the 'challenge' question that I gave you earlier. It should help you to solve this one. Files > 5- Tutorial-1 & Study Information > S 8- Math Tutorials Only > Tutorials Inspired from Posts > Math Tutorial - Challenge Problem 9-8-09.doc Challenge Problem making a topical with Three Components by Jeanetta Mastron Component A is 300 mg Component B is 1 gram Component C is 750 mg What is the percentage of each component if 1.95 gram of Aquaphor is added as a base for this ointment? Total = Component A = 300mg = 0.3 gram Component B = 1 gram = 1000 mg Component C = 750 mg = 0.75 gm Aquaphor = 1.95 gm = 1950 mg Decide if you want to work in decimals or whole numbers. I prefer to work with whole numbers because there are more errors made with decimals. Total = Component A = 300 mg Component B = 1000 mg Component C = 750 mg Aquaphor = 1950 mg ----------------------------------- Combo ABC = 4000 mg (FYI -Note this equals 4 grams) Component A = 300 mg = 7.5% 300mg ------------ x 100 = 7.5% 4000 mg Component B = 1000 mg = 25% 1000mg ------------ x 100 = 25% 4000 mg Component C = 750 mg = 18.75% 750mg ------------ x 100 = 18.75% 4000 mg Aquaphor = 1950mg = 48.75 % 1950mg ------------ x 100 = 48.75 % 4000 mg Total Check Component A = 300 mg = 7.5% Component B = 1000 mg = 25% Component C = 750 mg = 18.75% Aquaphor = 1950 mg = 48.75 % -------------------------------------------------------- Total Topical = 4000 mg = 100 % Topical The above problem and solution is copyrighted by Jeanetta Mastron on September 20, 2008 The above is what the tutorial is, but the HTML may distort it. So use the file if it does. Respectfully, Jeanetta Mastron CPhT BS Pharm Tech Educator F/O Boy you are keeping me jumping today! > > I need help with this one: > > A cough and cold tablet contains the following amounts of active > ingredients: > acetaminophen 325 mg > chlorpheniramine maleate 2 mg > pseudoephedrine hydrochloride 30 mg > dextromethorphan 15 mg > guaifenesin 100 mg > > The pharmacy has 2 kg of acetaminophen, 5 g of chlorpheniramine > maleate, and an unlimited supply of the other ingredients. How many > tablets can be prepared? > > I have no idea on this one. Please help. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Dear ohjuchakku sang and All, Here are directions to the Tutorialt hat will help you solve this problem. I want you to post your answers. Who cares if you are wrong? I care that you TRY to solve it using the CORRECT tool. Give it a try and I will be back soon to see what you did and to help you understand any errors you made or to congratulate you on a job well done. EITHER way this is what this site is for! Files > 5- Tutorial-1 & Study Information > S 8- Math Tutorials Only > Pediatric Dosing and BSA Tutorial on Pediatric Math.doc Tutorial - Pediatric Math 's Rule, Young's Rule and Fried's Rule for Pediatric Dosing, Body Surface area , Includes a Test 62 KB rxjm2002 first posted on 10/27/2002 Updated on 8-4-03, updated on 1- 14-04 and again on 6-14-08 JKMastron Respectfully, Jeanetta Mastron CPhT BS F/O > > Hi jeanetta > > need help on > > A drug is available in the following strengths and dosage forms 125mg tablets, 250mg capsules, 125mg/5ml liquid. > A child weighs 55 lb and the recommended doses is 10mg/kg/24hr ( to be given in 6 or 12 hour intervals). > what would be dosage form > > > math problem > > > Hello Jeanetta, > > I need your help with some math problem. > > What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? > > please help me > thank you > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Hi jeanetta one more problem for you. Adermatologist frequently orders 2 oz of the following prescription LCD 2% Salicylic acid 5% QSAD Yellow petrolatum The pharmacy technician wants to prepare a 500g bulk amount, then prepackage it in 2 oz containers. How much Salicylic acid will be needed to compound the 500g? math problem > > > Hello Jeanetta, > > I need your help with some math problem. > > What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? > > please help me > thank you > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Hi Jeanetta, Looks like you are busy so I thought I would help out. Joe Medina, CPhT ------------ What amount of 50% magnesium sulfate solution should be injected to prepare an IV bag containing 2g MgSo4? Setup: 50 g / 100 ml = 2g / xml x = 4 ml --------------------- A drug is available in the following strengths and dosage forms 125mg tablets, 250mg capsules, 125mg/5ml liquid. A child weighs 55 lb and the recommended doses is 10mg/kg/24hr ( to be given in 6 or 12 hour intervals)what would be dosage form? My Answer if I read the question correctly: 10 mg / 1 Kg = x mg / 55 lb 10 mg / 1 Kg = x mg / 25 Kg x = 250 mg per 24 hours My Answer: Dosage Form I would use is the 125mg/5ml which can be given in both 6 hour (2.5ml dose each) intervals or 12 hour (5 ml dose each) intervals. ---------- WOW! The site has not been this active in a long time. Give me a minute and I will get this for you still working on a few other private emails. Jeanetta Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Dear ohjuchakku sang, Thank you for your question. I do hope you realize that when you post you help others. Jeanetta's solution to this problem: Strategy: Set the percentage ratio equal to the total of oint that is going to be made: Let us use the abbreviation SA for Salicylic acid 5% SA = 2 grams SA for every 100 gms of ointment 5 gm SA X grams SA ----------------- = ----------------- 100 gm oint 500 gm oint 5 x 500 ----------- = 25 grams 5% Salicylic Acid is needed to make the 500 grams of ointment 100 Jeanetta's Challenge question: How much salicylic acid would you need to prepare 2 ounces of this ointment? 2 ounces of a prepared ointment contains 5% Salicylic acid, which is going to contain 5 grams SA or every 100 grams of ointment made. So we must find out how many grams 2 ounces Preparation is equal to in grams in order to know the total.: 1 oz = 60 mg 1 oz.......2 oz ------ = ------- 60 mg......X mg 2 x 60 -------- = 120 mg = 0.12 gram ointment 1 5 gram SA.......X gram ----------- = -------- 100 gm oint....0.12 gram Change to non-decimal: 5000 mg SA...........X mg gram SA ----------------- = --------------- 100, 000 mg oint.....120 mg oint Answer: 5000 mg x 120 mg oint ---------------------- = Use: 6 mg of 50% Salicylic acid 100, 000 mg oint OR Use 0.006 grams of 50% Salicylic Acid Hope this helps. I will be placing it on a tutorial for you in the file section. Respectfully, Jeanetta Mastron CPhT BS Pharm Tech Educator F/O > > Hi jeanetta > > one more problem for you. > > Adermatologist frequently orders 2 oz of the following prescription > LCD 2% Salicylic acid 5% QSAD > Yellow petrolatum The pharmacy technician wants to prepare a 500g bulk amount, > then prepackage it in 2 oz containers. How much Salicylic acid will be needed to compound the 500g? > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Dear All, I just hate the 'dots' that show up when I try to use horizontal ratio/proportion instead of the slash (/). Any way it forces me to make a tutorial out of it. Here is the directory for it: Files > 5- Tutorial-1 & Study Information > S 8- Math Tutorials Only > Tutorials Inspired from Posts Preparation of 5% Salicyclic Acid in 500gm oint.doc Calculate the amount of 5% salicylic acid is needed to make 500gm of ointment. Jeantta Mastron 9-20-08 Respectfully, Jeanetta Mastron CPhT BS Pharm Tech Educator Founder/Owner > > > > Hi jeanetta > > > > one more problem for you. > > > > Adermatologist frequently orders 2 oz of the following prescription > > LCD 2% Salicylic acid 5% QSAD > > Yellow petrolatum The pharmacy technician wants to prepare a 500g > bulk amount, > > then prepackage it in 2 oz containers. How much Salicylic acid will > be needed to compound the 500g? > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2008 Report Share Posted September 20, 2008 Dear Joe and All, Joe, while I agree with the numerical VALUES that you calculated, I do not necessarily agree with your opinion of which dosage form to use on the last problem. I have posted my answers and also in the file section as tutorials. The main questionsfor dosage forms are: 1. How old is the patient? 2. Is the tablet scored? I used a children's weight/age chart to determine the approximate age of the child to see if he/she could take a capsule or tablet. From what I studied she/he could. I really had to assume that the tablet is not scored or else it would say so in the problem. Scored = a grove in the middle of the tablet to make it easier or the pat to cut the tablet in half and also means that there is no special reason to NOT cut the tablet in half (like time release or enteric coating). Any way I made a table or chart and it is on the file in the tutorial section, but I just do not think it will print here on the post. I'll give it a try. So if you are a student of this site, and you already have studied what Mr Medina posted regarding this question and you think you'got' it, I would consider taking a look at my file. Respectfully, Jeanetta Mastron CPhT BS Founder/Ownwe > > Hi Jeanetta, > > Looks like you are busy so I thought I would help out. > > Joe Medina, CPhT > > ------------ > What amount of 50% magnesium sulfate solution should be injected to > prepare an IV bag containing 2g MgSo4? > > Setup: > > 50 g / 100 ml = 2g / xml > > x = 4 ml > > --------------------- > A drug is available in the following strengths and dosage forms 125mg > tablets, 250mg capsules, 125mg/5ml liquid. A child weighs 55 lb and > the recommended doses is 10mg/kg/24hr ( to be given in 6 or 12 hour > intervals)what would be dosage form? > > My Answer if I read the question correctly: > > 10 mg / 1 Kg = x mg / 55 lb > > 10 mg / 1 Kg = x mg / 25 Kg > > x = 250 mg per 24 hours > > My Answer: > > Dosage Form I would use is the 125mg/5ml which can be given in both 6 > hour (2.5ml dose each) intervals or 12 hour (5 ml dose each) intervals. > > ---------- > WOW! The site has not been this active in a long time. > Give me a minute and I will get this for you still working on a few > other private emails. > > Jeanetta > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 22, 2008 Report Share Posted September 22, 2008 Jeanitta, when we did math problems last night, I didn't have chance to write it down, do you still have this problem in your files? Thanks, How many500-mg metronidazole tabs will be needed to compound the follwing prescription for a patient: Metronidazole 3%, suspending agent 30%, simple syrup 40% qsad H2o to 150 ml? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 22, 2008 Report Share Posted September 22, 2008 Gallina, Recall: X % = X/100 and X % = X grams So 3% = 3/100 and also 3grams IF 3 grams of Metronidazole are in 100ml of solution, THEN how many grams are in 150ml? Now read that same statement but this time use the words 'WILL be in " instead of 'are in 150ml? SET up the R/P and solve! 3/100 = X / 150 3 x 150/100 = X 4.5 ml = X Hope this helps! Don't forget to give yourself a break today! Your test is tomorrow! Love ya Jeanetta > > Jeanitta, > when we did math problems last night, I didn't have chance to write it > down, do you still have this problem in your files? > > Thanks, > > > How many500-mg metronidazole tabs will be needed to compound the > follwing prescription for a patient: > Metronidazole 3%, suspending agent 30%, simple syrup 40% qsad H2o to > 150 ml? > Quote Link to comment Share on other sites More sharing options...
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