Hypokalemia

Question 1

ECG Changes

Answer 1

a long QT interval
a prolonged PR interval
ST depression
U waves

Question 2

Hypokalemia - Drug causes

Answer 2

thiazide and loop diuretics (alkalosis)
acetazolamide (acidosis)

Question 3

Hypokalemia - Non-drug causes

Answer 3

vomiting
Cushing’s syndrome
Conn’s syndrome (primary hyperaldosteronism)
diarrhoea
renal tubular acidosis
partially treated diabetic ketoacidosis
magnesium deficiency