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. 2020 Oct 28;97(1149):452–458. doi: 10.1136/postgradmedj-2020-138661

Table 4.

How to assess the risk of drug-induced QT prolongation

Key questions
Does the patient have any risk factors for QT prolongation?
Is the new medication associated with a risk of QT prolongation?
Are there any potential drug interactions that could increase the risk of QT prolongation?
Is the medication essential? Are there any alternatives?