Pharmacist-level sterile and non-sterile compounding concepts and pharmacy calculations tested on the NAPLEX, distinct from the technician-scope PTCB compounding deck.
40 cards · mixed cards · AI-written, checked twice. Edit anything.
- What calculation method is used to determine the proportions of two components of different strengths needed to prepare a mixture of a desired intermediate strength?
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Alligation (alternate)- Using alligation alternate to prepare 100 mL of a 6% solution from a 10% stock solution and a 2% stock solution requires ____ of the 10% stock.
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50 mL- What is the formula for specific gravity?
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Specific gravity = weight of substance / weight of an equal volume of water- In compounding, when is the aliquot method used?
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When the desired quantity of an ingredient is smaller than the smallest amount that can be accurately weighed or measured on the available equipment- What is the formula for least weighable quantity (LWQ) on a balance?
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LWQ = balance sensitivity requirement / acceptable percent error (as a decimal)- On a balance with a sensitivity requirement of 6 mg and a desired accuracy of 5% error, the least weighable quantity is ____.
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120 mg- What is the formula relating milliequivalents (mEq) to milligrams?
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mEq = (mg x valence) / molecular weight- Since sodium chloride has a molecular weight of 58.5 g/mol and a valence of 1, one milliequivalent of sodium chloride equals ____.
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58.5 mg- What is the formula for calculating osmolarity of a solution in mOsmol/L?
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mOsmol/L = (concentration in g/L / molecular weight) x number of particle species x 1000- What is the purpose of the sodium chloride equivalent method?
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To determine the amount of NaCl or diluent needed to make a compounded solution isotonic with body fluids- In the freezing point depression method for isotonicity, what freezing point is used as the reference for body fluids?
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-0.52 degrees C- What is Clark's Rule for pediatric dosing?
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Child dose = (child's weight in lb / 150) x adult dose- What is Young's Rule for pediatric dosing?
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Child dose = (age in years / (age + 12)) x adult dose- What is the Mosteller formula for body surface area (BSA)?
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BSA in m2 = square root of [(height in cm x weight in kg) / 3600]- What is the Cockcroft-Gault equation for creatinine clearance?
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CrCl (mL/min) = [(140 - age) x weight in kg] / (72 x serum creatinine in mg/dL), multiplied by 0.85 for females
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