Sources for Error in Medication Dosage Equation

Are the calculations complex (or confusing)?

Were the calculation done manually?

Was a decimal point misplaced?

Was the wrong formula used?

Was there a failure to double check calculations?

Was there confusion between the total daily dose and divided doses?

Was there any other error in specifying the dosing frequency?

Was there confusion between the use of body surface area or weight?

Was there an error in body weight units (kilograms. grams, pounds, ounces)?

Was there an error in drug units of weight?

Was there confusion between the use of a drug and its salt?

Did the dose involve use of a concentrated form of a drug?

Was the drug dose prescribed as a volume to be given?

Was an adjustment for renal failure or other comorbid condition done incorrectly?

Was an error made related to the route of administration?