Hyperkalaemia is defined as a higher-than-normal level of potassium in the blood.

What is Potassium (K+)?

• An electrolyte (a mineral that carries an electrical charge).

• Primarily found inside cells.

• Necessary for normal function of cells, nerves and muscles.

• Sends electrical signals so that your heart pumps correctly.

• Extracellular potassium needs to be regulated tightly.

Potassium levels:

• Renal disease – Acute kidney injury and Chronic kidney disease.

• Drugs - ACE inhibitors, angiotensin II receptor blockers, potassium sparing diuretics (important in CKD & heart failure), potassium supplementation.

• Cell lysis – rhabdomyolysis, tumour lysis syndrome.