Which one of the following electrocardiographic changes is found in hypercalcaemia -

ECG Changes in Hypercalcaemia The main ECG abnormality seen with hypercalcaemia is shoening of QT interval In severe hypercalcaemia, Osborn waves (J waves) may be seen Ventricular irritability and VF arrest has been repoed with extreme hypercalcaemia Bizarre-looking QRS complexes Very sho QT interval J waves = notching of the terminal QRS, best seen in lead V1 Ref Harrison 20th edition pg 1435