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Pharmacokinetic consultation service workload measurement study.

K Nezis¹, T R Einarson, M G Tierney

¹Faculty of Pharmacy, University of Toronto, Ontario.

The Canadian Journal of Hospital Pharmacy

|December 1, 1991

Summary

Pharmacist time for drug consultations averaged 8.28 minutes, with initial consults taking longer than repeat ones. These pharmacokinetic consultation times were less than previously reported workload measurements.

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Area of Science:

Pharmacology
Health Services Research
Pharmacy Practice

Background:

Pharmacokinetic drug consultation services are crucial in tertiary care settings.
Accurate work measurement data is needed to understand resource allocation for these services.
Previous studies, like the Canadian Hospital Pharmacy Workload Measurement Study, provide benchmarks.

Purpose of the Study:

To collect work measurement data for pharmacokinetic drug consultation services.
To determine the average time pharmacists spend on these consultations.
To compare current consultation times with existing benchmarks.

Main Methods:

A time-motion study using a stopwatch was conducted at a 530-bed tertiary care teaching hospital.
Ten pharmacists recorded time spent on 166 pharmacokinetic consultations.

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Consultations focused on drugs including phenytoin, aminoglycosides, digoxin, and theophylline.

Main Results:

The average time for a pharmacokinetic consultation was 8.28 minutes (SD = 4.72).
Initial consultations (10.35 minutes) took significantly longer than repeat consultations (6.62 minutes) (P < 0.001).
Pharmacist time for drug level measurements averaged 1.10 minutes; times varied significantly among pharmacists but not by drug or patient coverage area.

Conclusions:

Pharmacokinetic consultation times are generally shorter than those reported in previous Canadian studies.
Initial consultations require more time than repeat consultations, highlighting a potential area for efficiency improvements.
Pharmacist variability in consultation time warrants further investigation into practice patterns and training.