Clinical Observation: Spoons Systematically Bias Dosing of Liquid Medicine

Annals of Internal Medicine, Vol. 152, 2010

4 Pages Posted: 8 Feb 2016

See all articles by Brian Wansink

Brian Wansink

Cornell University

Koert van Ittersum

University of Groningen

Date Written: 2010

Abstract

Background: Spoon dosing has been identified as 1 of the 3 major causes of dosing errors and pediatric poisonings (1). Although the U.S. Food and Drug Administration recommends against using kitchen silverware to dose liquid medicine (accessed June 28, 2009) most persons still use spoons when pouring medicine for themselves and their families (2). Although dosing errors remain modest when using teaspoons, they may increase when using various sizes of larger spoons (3). If the size of a spoon leads a teaspoonful of liquid medicine to seem like markedly more or less than 5 mL (4), a person may compensate by under- or over-dosing (Figure).

Suggested Citation

Wansink, Brian and van Ittersum, Koert, Clinical Observation: Spoons Systematically Bias Dosing of Liquid Medicine (2010). Annals of Internal Medicine, Vol. 152, 2010. Available at SSRN: https://ssrn.com/abstract=2474278

Brian Wansink (Contact Author)

Cornell University ( email )

Ithaca, NY 14853
United States

Koert Van Ittersum

University of Groningen ( email )

Postbus 72
9700 AB Groningen
Netherlands

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