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Drug Dosage Formula #1
Dose = volume of drug to be given (V) × concentration of drug used (C)
D = V × C
Drug Dosage Formula #2
Dose = recommended dose of drug (RD) × weight of the animal (pt.wt.)
D = RD × Pt.Wt.
IV % Formula
cc's (ml's) needed = % desired × cc (ml) to be made ÷ % using
example : 2.5% dextrose in 400ml of saline, using 40% dextrose
2.5 × 400 ÷ 40 = 25ml of 40% Dextrose required
Reconstituted Concentration (RC) = total amount of drug (TA) ÷ total volume in vial (TV)
RC = TA ÷ TV
550mg of ABx in 50ml of liquid
550 ÷ 50 = 11 mg/ml
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