Friday, January 1, 2016

Dosage Calculation - Mass for Mass Questions - (2)

Source Website: http://www.dosagehelp.com/mass.html
By DosageHelp.com


Mass for Mass Questions
Given an amount of mass per tablet, how many tablets do you require?


Formula:


    
         
            
              Ordered
              Have
           
           =
           Y(Tablets required)
        
  

Question (7): (From Ngee Ann Polytechnics Dosage Calculation Worksheet)
The doctor orders 40 mg of Feldene per day. Feldene comes in 10 mg capsules. The patients should take the medication before breakfast and dinner. How many capsules should the patient take before each meal?

2 meals = 40 mg
Therefore, 1 meal = 40/2 = 20 mg


         
            
              Ordered
              Have
           
           =
           Y(Capsules required)
        

         
            
              20 mg
              10 mg
           
           =
           
             2 Capsules before each meal
           
        

Question (8): (From Ngee Ann Polytechnics Dosage Calculation Worksheet)
Drug A label reads 50 mg tablets. The doctor orders 75 mg tds. The nurse will administer __________ tablets/each time for 3 times a day.


3 times a day = 75 mg
Therefore each time = 75/3 = 25 mg


         
            
              Ordered
              Have
           
           =
           Y(Tablets required)
        

         
            
              25 mg
              50 mg
           
           =
           
             
              1
              2
            
           tablets each time
           
        

Question (13): (From Ngee Ann Polytechnics Dosage Calculation Worksheet)
ORDER: Drug S 0.15 mg P.O.
AVAILABLE: Drug S 0.3 mg tablets


         
           GIVE:
           
             
          
          Tab(s)
        

         
            
              Ordered
              Have
           
           =
           Y(Tablets required)
        

         
            
              0.15 mg
              0.3 mg
           
           =
           
             
              1
              2
            
           tablets
           
        
Alternatively, 0.3 mg = 1 tablet
Therefore 0.15 mg = 1/0.3 x 0.15 = 0.5 tablets


Continue (Go to Dosage By Weight Questions)




Reference

[1] Advanced Formatting, Ry’s MathML Tutorial, http://rypress.com/tutorials/mathml/advanced-formatting.
[2] MathML, Presentation MathML, https://en.wikipedia.org/wiki/MathML.
[3] MathJax in Blogger (II), Posted on Tuesday, 12 July 2011, http://irrep.blogspot.sg/2011/07/mathjax-in-blogger-ii.html
[4] MathJax, http://docs.mathjax.org/en/latest/start.html