Pharmaceutical Calculations. Lab Alligation Medial and Alligation Alternate. Alligation is an arithmetical method of solving problems that involves the. Alligation is one of the simple and illustrative methods in pharmaceutical calculations for the pharmacy technicians. Dilution is a simple method. The pharmacy has in stock 3% coal tar ointment and coal tar. Remember, a pure product has Using alligation, calculate the amount of each available product.

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This is an example of alligation alternate because you want to find the amount of two ingredients to mix to form a mixture with a given amount of fat.

Alligation Math

How many milliliters of Clorox would be needed to make a gallon of this irrigation? In the accident, patient X, suffered a deep abrasion on his leg and may eventually need a skin graft. They are as follows: Prepare, concentrate, or dilute compounded medications accurately. Clorox bleach standard 5. There are a multitude of reliable resources for such material. Alligation is one of the simple and illustrative methods in pharmaceutical calculations for the pharmacy technicians.

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With the exception phrmacy some pharmacokinetic expressions, most of the calculations you will be expected to perform will be simple arithmetic. The solution is just to find the weighted average by composition:. In this formula, A is the volume of ingredient A and a is its mixture coefficient i. It is often more practical to dilute a known strength preparation than it would be to compound an entire preparation.

You can also find results for a single author or contributor. Using this formula you can solve for any of the 6 alletation A,a,B,b,C,c, regardless of whether you’re dealing with medial, alternate, etc. This video demonstrates key steps in performing calculations using the alligation method and provides pertinent examples.


Use daily for wound cleansing and dressing on right leg. This is an example of a problem that involves repeated dilutions of a given solution.

The technique pharmacyy not used in schools although it is used still in pharmacies for quick calculation of quantities.

Pharmacy Calculations Tutorial

Identify the data given. What phaemacy the procedures in the pharmacy for double check on the calculations? The ratio of the quantity of wine now left in cask to that of water is Alligation alternate is more complicated and involves organizing the ingredients into high and low pairs which are then traded off. Alligation medial is merely a matter of finding a weighted mean. Nemire, and Karen L. By using this site, you agree to the Terms of Use and Privacy Policy.

Therefore 1 part of 1. Every pharmacy calculations tutorial also includes appropriate solved examples to clarify key concepts.

Wikipedia articles incorporating a citation from the Cyclopaedia Wikipedia articles incorporating text from Cyclopaedia Wikipedia articles incorporating a citation from the Cyclopaedia without an article title parameter. Questions to follow up in this case include the following: Procedure of Calculation a Draw a problem matrix a Insert quantities as shown a Subtract along the diagonals a Read along the horizontals The desired strength always goes in the center square of the matrix.

These video tutorials are designed for student pharmacists, pharmacists, pharmacy technicians, nursing students, nurses and other healthcare professionals. Since final weight of ointment is 15 g,the weight of the 1. This video demonstrates key steps in performing calculations using the aliquot method and mmethod pertinent examples. Chambers, Ephraimed.


This article incorporates text from a publication now in the public domain: On the other hand, many of the times we require an intermediate concentration from two different concentrations where allegation plays its role. Otherwise it is hidden from view. So in the above example we get: Why did you choose this over an antibiotic? This video demonstrates key steps in performing percentage concentration calculations and provides pertinent examples. Estimate the final answer before beginning the work.

How many millilitres of a 1: You should develop several methods to check your work as you go.

Alligation Math / Tic-Tac-Toe Math / Basic Pharmacy Math

Accessed December 31, This is an example of alligation medial because you want to find the amount of sugar in the mixture given the amounts of sugar in its ingredients. Use this site remotely Bookmark your favorite content Track your self-assessment progress and more! There are two types of alligation: Calculate an appropriate dose.

Sign in via Shibboleth. The hospital order says merely the following:. Reconstitute dry powders to appropriate concentration. Since there are only two ingredients, there is only one possible way to form a pair. Last, you are expected to be able By using the pharmacy calculations resource you are well on your way to mastering pharmaceutical calculations and being able to pharmacyy any calculations question you encounter.

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