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Calculations
Ch 3: Practical Calculations
| Term | Definition |
|---|---|
| Concentration of a Drug | The amount of active drug per unit of volume or weight |
| Dilution | The process of reducing the concentration of a substance in a solution |
| Dosage Form | The physical form of the drug (e.g., tablet, liquid, capsule |
| Dosage Range | The acceptable minimum and maximum dose of a drug (e.g., 2–5 mg/kg) |
| Equivalent Weight | (For electrolytes) The molecular weight divided by the total positive valence |
| Milliequivalent | 1/1000 of an equivalent; a unit used for electrolyte concentrations |
| Percent Concentration | Parts of solute per 100 parts of solution (e.g., % w/v, % w/w, % v/v) |
| Quantity Sufficient | "Add a quantity sufficient" to reach a desired volume |
| Regiman | The complete course of drug administration (amount, frequency, duration, route) |
| Ratio Concentration | Expresses the relationship of solute to solvent/solution (e.g., 1:32) |
| Solute | The substance that is dissolved in a liquid (solution) |
| Solution | A homogeneous mixture of two or more substances |
| Solvet | The liquid in which a solute is dissolved |
| Stock Solution | A concentrated solution that is diluted to prepare working solutions |
| Dosage | The amount of drug to be given per unit of body weight (e.g., mg/kg) |
| Dose | The total amount of medication to be given at one time (e.g., 20 mg) |
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