Drugs Causing Hyperkalaemia (Medical Mnemonics)

K	K Sparing
B	Beta Blockers
A	ACEi	Angiotensin Converting Enzyme Inhibitors
N	NSAIDS	Non-Steroidal Anti-Inflammatory Drugs
K	K Supplements

Fig 1: ECG Changes in Hyperkalaemia

Further Reading

ECG changes in uraemia

A prolonged QT interval is due to hypocalcaemia and tall T waves to hyperkalaemia and/or acidosis, which can be caused by uraemia. The main ECG change resulting from hypocalcaemia is a long QT interval due to prolongation of the ST segment.