ABC of clinical electrocardiography: Conditions not primarily affecting the heart

Readers may have been confused by a caption and figure in this article by Corey Slovis and Richard Jenkins (1 June, pp 1320-3). The figure showing short QT interval (in the section “Other non-cardiac conditions,” p 1323) was wrongly captioned. The trace indeed showed short QT interval but in a patient with hypercalcaemia [not hypocalcaemia].