View source for Puzzle 2007 12 426 Answer

{{NHJ|
|mainauthor= '''A.A.M. Wilde'''
|edition= 2007:12,426
}}
[[Image:Puzzle_2007_12_426_fig1.jpg|Figure 1|thumb]]

A 47-year-old lady presents with an ‘abnormal
ECG’. In her family three daughters suffer from
a long-QT syndrome type 2 and the responsible
mutation has been identified in her husband and his
family. An ECG was taken as part of a routine checkup
(figure 1). 

'''Is it abnormal and if so, what would your diagnosis be?'''