Medication Errors in a Tertiary Hospital

S0015 [Source: : Maricle et al. (2007). Journal of Nursing Care Quality 22(1):20-27.]

A project examined the accuracy of medication administration by nurses at a 550-bed tertiary care hospital in western New York. Thirty nurses from three hospital units agreed to be observed as they administered medications. Results are summarized in the following table.

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Questions:

Q1. Provide a 95% confidence interval for the overall error percentage (i.e. 4.9%).

Q2. What is the error incurred in using 4.9% for estimating the overall error percentage?

Q3. Suppose you were asked to examine if there was a difference of the percentage of medication errors across the three units. Perform an appropriate analysis.

Q4. Give one limitation of this study.