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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In order for this chapter to be brief, basic math is not reviewed. It is often more practical to dilute a known strength preparation than it would be to compound an entire preparation. What are the procedures in the pharmacy for double check on the calculations? Using this formula you can solve for any of the 6 variables A,a,B,b,C,c, regardless of whether you’re dealing with medial, alternate, etc.

## Alligation Math

Dilution is a simple method for preparing a lower concentration from a solution of higher concentration. 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.

Clinical Sports Medicine Collection. This video demonstrates key steps in performing calculations using the aliquot method and provides pertinent examples. Sometimes, a simple calculation using alligation allows us to calculate the amount of diluent to be added to an already prepared higher strength preparation to form the strength desired.

The solution is just to find the weighted average by composition:. These video tutorials are designed for student pharmacists, pharmacists, pharmacy technicians, nursing students, nurses and other merhod professionals. This article incorporates text from a publication now in the public domain: Here we can clearly observe that all concentration terms are not expressed equal.

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Alligation is a rapid arithmetic method used to solve problems that involve mixing two products of different strengths to form a product having a desired intermediate strength.

The solutions should be mixed at a specific proportion in order to get required concentration. Before preserving your articles on this site, please read the following pages: Why did you choose this over an antibiotic?

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

The technique is not used in schools although it is used still in pharmacies for quick calculation of quantities. Procedure calcylations 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 calxulations of the matrix.

This equation proves the line diagram method of alligation is correct and most suitable in such calculation. Upon completion of the chapter and exercises, the student pharmacist will be able to. Preserve Articles is home of thousands of articles published and preserved by users like you. Sign in via OpenAthens. You consult with the pharmacist in charge to confirm that the pharmacy has all of the ingredients.

Otherwise it is hidden from view. So in the above example we get: How many milliliters mehhod Clorox would be needed to make a gallon of this irrigation? By using this site, you agree to the Terms of Use and Privacy Policy.

Prepare, concentrate, or dilute compounded medications accurately. By using the pharmacy calculations resource you are well on your way to mastering pharmaceutical calculations and being able to solve any calculations question you encounter. Two further allegztion on Alligation occur: Alligation is one of the simple and illustrative methods in pharmaceutical calculations for the pharmacy technicians.

Please enter Password Forgot Username? Questions to follow up in this case include the following:. This video demonstrates key steps in performing dilution and concentration calculations and allegatioh pertinent examples.

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Chambers, Ephraimed. When 8 liters are drawn out, the volume of wine is reduced by 8 X liters while the total volume of liquid remains unchanged as it is re-filled with water.

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. The hospital order says merely the following: This operation is performed three more times. Who do you need to go to in the pharmacy to see that this order is correctly processed?

Each pharmacy calculations tutorial demonstrates key steps in analyzing and understanding the question, developing the most effective and efficient qllegation to solving the question, solving the question and reflecting on the question falculations solution.

### Notes on the Use of Alligation Method in Pharmaceutical Practice

This site uses cookies to provide, maintain and improve your experience. Clorox bleach standard 5. This video demonstrates key steps in performing calculations using the freezing point depression method and provides pertinent examples. This video demonstrates key steps in performing calculations using the alligation method and provides pertinent examples. A general formula that works for both alligation “alternate” and alligation “medial” is the following: This video demonstrates key steps in performing milliequivalent calculations and pbarmacy pertinent examples.

Therefore 1 part of 1. Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients. Since there are only two ingredients, there is only one possible way to form a pair.