1.
A 29-year-old man was admitted with acute onset muscle weakness which was non-focal. There were no sensory symptoms or sphincter involvement. He gives a history of party earlier that evening. He remembers to have had similar episode a few months go. The ECG is shown
What is the next step
2.
A 43-year-old man with polycystic kidney disease is admitted for creating an arteriovenous fistula for dialysis. Apart from fatigue and muscle cramps, he doesn’t have much symptoms. His ECG is shown
Which of the statements is most appropriate
