27th September 2021

A 38-year-old type I diabetic female presents to A+E with vomiting

A 38-year-old type I diabetic female presents to A+E with vomiting. Initial investigations reveal a markedly raised capillary blood glucose, with urinalysis positive for ketones. A 12-lead ECG is performed as part of the ABCDE approach, revealing a heart rate of 38bpm with a fixed PR interval but a dropped QRS complex after every two P waves. What is the most likely arrhythmia that has been described here?

Select the SINGLE most appropriate option. Select ONE option only.