Adverse drug events identification using trigger tools in hospitalized patients

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Vittanee Getupook
Kanokkoj Budnampet
Attaya Plangsanguan
Rujira Sopakorn

Abstract

The aims of the present study were to identify and describe adverse drug events by trigger tools. Data were collected from retrospective record review of 561 patient charts which had 1 or more trigger tools and admissions longer than 48 hours during January to June 2014. The 4 trigger tools investigated in this study were calcium polystyrene sulphonate (Kalimate®), chlorpheniramine maleate injection (CPM injection), vitamin K injection (Konakion®) and naloxone injection (Narcan®). The particular adverse drug events which occurred during the admissions were counted and identified. The results showed that Kalimate® and vitamin K injection were prescribed most often (36.6% and 35.8% respectively) followed by CPM injection (27.5%). No naloxone injection was prescribed during the study time. The combined positive predictive value (PPV) of all trigger tools was 9.9% as follows Kalimate® 16.15% PPV, CPM injection 12.79% PPV, and vitamin K injection 1.34% PPV.


This study indicated that KCl injection and KCl elixir were the causes of hyperkalemia (K 5.5 - 7.7 mEq/L) leading to Kalimate® prescription. Antibiotics were the most common cause of hypersensitivity leading to CPM injection prescription (81.8%). Most hypersensitivity reactions were skin rash, particularly maculo-papular rash (50%). Warfarin was the cause of high INR levels (INR 7-10) leading to vitamin K injection prescription.


Trigger tools may be a useful method to identify adverse drug events in a short time continually using targeted chart review to find incidence of adverse drug events to improve patient safety.

Article Details

Section
Pharmaceutical Practice

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