![]() ![]() Specific gravity refers to the ratio of the weight of a substance to the weight of an equal volume of water at the same time. The following definitions can aid in preparing and administering pharmacological drugs.Ĭoncentration is the amount of active ingredient per total weight of a substance.Īlligation involves mixing solutions or solids of varying strengths to obtain another strength of the active ingredient in both. Health care professionals must dispense drugs in the accurate concentrations, calculate correct doses, and compound and prepare medications accurately to ensure that each particular drug is being administered correctly.ĭose refers to the amount of medication taken at a specific time, whereas the dosage of the drug refers to the administration of a frequency, amount, and the number of doses taken over a particular period of time. Utilizing pharmacy calculations to administer therapeutics to patients correctly is vital to patient treatment.
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