Chapter 3 Practical Calculations
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| What is the formula for a dosage calculation? | Dose= (animal weight x dosage rate)/concentration of drug
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| What is the conversion factor for lbs to kg and kg to lbs? | to convert lbs to kg--multiply by .45 or divide by 2.2. To convert kg to lbs--multiply by 2.2
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| How do you convert from a percent solution to mg/mL? | Multiply the percentage by 10.
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| How do you convert from mg/mL to a percent? | divide mg/mL by 10.
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| What is mg%? | The number of mg in 100mL of solution (also known as mg/dL because 1 dL=100mL).
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| What does q.s. mean? | quantity sufficient to arrive at desired volume
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| What is the formula for a change in concentration of solutions? | V1 x C1= V2 x C2
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| What is the formula for constant rate infusions, and what are the variables? | M=(DxWxV)/(Rx16.67); R=(DxWxV)/(Mx16.67)
M= #mg to add to fluid; D=dosage in mcg/kg/min; W=body wt in kg; V=volume in mL of delivery fluid; R=rate of delivery in mL/hr; 16.67= conversion factor.
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